Journal articles: 'Ex Rchb'

1

Dunkel, Franz G. "Typification ofRanunculus binatusKit. ex Rchb.(Ranunculaceae)." Willdenowia 41, no. 2 (2011): 239–43. http://dx.doi.org/10.3372/wi.41.41204.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Yao, Gang. "Dichodon parvipetalum, a new combination for the Chinese Caryophyllaceae." PhytoKeys 69 (September 9, 2016): 129–30. https://doi.org/10.3897/phytokeys.69.8494.

Full text

Abstract:

The generic name Dichodon (Bartl. ex Rchb.) Rchb. was previously reinstated based on results from recent molecular phylogenetic studies. Accordingly, Dichodon parvipetalum (Hosok.) G. Yao, a new combination for the species Cerastium parvipetalum Hosok. is proposed.

APA, Harvard, Vancouver, ISO, and other styles

3

Gudaityte, Odeta. "The Ecologicaland Phytosociological Characteristics Of Communities With Achillea Cartilaginea Ledeb. Ex Rchb. In Lithuania." Acta Biologica Universitatis Daugavpiliensis 2 (December 31, 2010): 17–27. https://doi.org/10.5281/zenodo.12645627.

Full text

Abstract:

Gudaityte, Odeta (2010): The Ecologicaland Phytosociological Characteristics Of Communities With Achillea Cartilaginea Ledeb. Ex Rchb. In Lithuania. Acta Biologica Universitatis Daugavpiliensis 2: 17-27

APA, Harvard, Vancouver, ISO, and other styles

4

Dillenberger, M. S., and J. W. Kadereit. "A REVISION OF FACCHINIA (MINUARTIA S.L., CARYOPHYLLACEAE)." Edinburgh Journal of Botany 72, no. 3 (2015): 353–89. http://dx.doi.org/10.1017/s0960428615000153.

Full text

Abstract:

Facchinia Rchb. (Alsinoideae–Caryophyllaceae), earlier found not to be part of Minuartia s.str., is here revised. The genus contains seven species, one of which has two subspecies. Seven new combinations are made: Facchinia cerastiifolia (Ramond ex DC.) Dillenb. & Kadereit, F. cherlerioides (Sieber) Dillenb. & Kadereit, F. cherlerioides subsp. aretioides (Port. ex J.Gay) Dillenb. & Kadereit, F. grignensis (Rchb.) Dillenb. & Kadereit, F. herniarioides (Rion) Dillenb. & Kadereit, F. rupestris (Scop.) Dillenb. & Kadereit, and F. valentina (Pau) Dillenb. & Kadereit. Keys to Minuartia s.str., the Old World segregate genera of Minuartia s.l., and to the species and subspecies of Facchinia are provided. All taxa are described and mapped, and some are illustrated.

APA, Harvard, Vancouver, ISO, and other styles

5

L.A., Kovalska, and Gyrenko O.G. "Comparative morphological characteristics of flower structure of Coelogyne Lindl. (Orchidaceae Juss.) species from collection of M.M. Gryshko National Botanical Garden of the NAS of Ukraine." Plant Introduction 61 (May 1, 2014): 47–55. https://doi.org/10.5281/zenodo.1493287.

Full text

Abstract:

The inflorescence development patterns as well as morphological structure of the flowers of 9 Coelogyne Lindl. (Orchidaceae Juss.) species from the M.M. Gryshko National Botanical Garden of the NAS of Ukraine collection — C. brachyptera Rchb. f., C. dichroanthа Gagnep., C. fimbriata Lindl., C. flaccida Lindl., C. huettneriana Rchb. f., C. nitida (Wall. ex D. Don) Lindl., C. ovalis Lindl., C. speciosa Lindl., C. tomentosa Lindl. are studied.

APA, Harvard, Vancouver, ISO, and other styles

6

Szlachetko, Dariusz L., and Marta Kolanowska. "A new species of Microchilus (Orchidaceae, Goodyerinae) from Peru." Polish Botanical Journal 59, no. 2 (2014): 189–91. http://dx.doi.org/10.2478/pbj-2014-0023.

Full text

Abstract:

Abstract A new species of Microchilus C. Presl, M. leucostictus Rchb. f. ex Szlach. & Kolan, is described and illustrated based on Peruvian material. The taxonomic affinities of the new entity are briefly discussed.

APA, Harvard, Vancouver, ISO, and other styles

7

Szlachetko, Dariusz L., and Marta Kolanowska. "A new species of Rhinorchis (Orchidaceae, Habenariinae) from French Guiana." Polish Botanical Journal 59, no. 2 (2014): 193–95. http://dx.doi.org/10.2478/pbj-2014-0024.

Full text

Abstract:

Abstract Rhinorchis heteroplectron Rchb. f. ex Szlach. & Kolan., a new species from French Guiana, is described and illustrated. The differences between R. heteroplectron and similar species are briefly discussed and an identification key for representatives of the genus reported from French Guiana is included.

APA, Harvard, Vancouver, ISO, and other styles

8

Davydov, D., and L. Gomlya. "BOTANICAL CHARACTERISTIC OF NEW PERSPECTIVE RESERVES WITHIN POLTAVA TOWN TERRITORIAL COMMUNE." BIOLOGY & ECOLOGY 7, no. 2 (2022): 14–21. http://dx.doi.org/10.33989/2021.7.2.261534.

Full text

Abstract:

The article includes a brief botanical description of three new proposal objects of Ukrainian nature reserve fund – «Zhukivskyi» and «Buhayivskyi» local landscape reserves and «Kostochky» local botanical reserve. These territories are one of the most valuable natural vegetation areas within Poltava town territorial commune and their creation will protect the localities of six plant species ftom «The Red Data Book of Ukraine» (Colchicum versicolor Ker Gawl., Crocus reticulatus Steven ex Adam, Tulipa quercetorum Klokov & Zoz, Stipa capillata L., Adonis vernalis L., Astragalus dasyanthus Pall.),22 regionally rare vascular plant species within Poltava region (Veratrum nigrum L., Iris aphylla L., Bellevalia speciosa Woronow, Hyacinthella leucophaea (K. Koch) Schur, Muscari neglectum Guss. ex Ten., Scilla siberica Haw., Convallaria majalis L., Aegilops cylindrica Host, Aconitum lasiostomum Rchb. ex Besser, Clematis integrifolia L., Lathyrus pannonicus (Jacq.) Garcke, Oxytropis pilosa (L.) DC., Prunus avium (L.) L., P. fruticosa Pall., Rosa chrshanovskii Dubovik, Dianthus eugeniae Kleopow, Asyneuma canescens (Waldst. & Kit.) Griseb. & Schenk, Campanula persicifolia L., Aster bessarabicus Bernh. ex Rchb., Cota tinctoria (L.) J. Gay, Jurinea multiflora (L.) B. Fedtsch., Valeriana officinalis L.) and three rare associations of the steppe vegetation (Stipetum capillatae purum, Stipetum (capillatae) festucosum (valesiacae), S. koeleriosum (macranthae)) from the one formation included in «The Green Data Book of Ukraine». The location, area, main vegetation types, number of rare plants species and rare associations were indicated for all proposed reserves.

APA, Harvard, Vancouver, ISO, and other styles

9

González Montelongo, Cristina, María Catalina León Arencibia, Juan Ramón Acebes Ginovés, and Ana Losada Lima. "Comentarios para la actualización del catálogo de plantas vasculares de las islas Canarias." Vieraea Folia scientiarum biologicarum canariensium 42, Vieraea 42 (2014): 207–18. http://dx.doi.org/10.31939/vieraea.2014.42.14.

Full text

Abstract:

The study of several specimens of plants collected mainly on the island of Tenerife has allowed to obtain chorological or taxonomic conclusions that represent the proposal of various changes in the catalogue of vascular plants of the Canary Islands (Acebes et al., 2010). Taxa concerned are: Amaranthus blitum L. subsp. emarginatus (Moq. ex Uline & W.L. Bray) Carretero, Muñoz Garm. & Pedrol, Amaranthus quitensis Humb., Bonpl. & Kunth, Amaranthus cruentus L., Foeniculum vulgare Miller subsp. piperitum (Ucria) Coutinho, Conyza sumatrensis (Retz.) E. Walker, Trifolium repens L., Polygonum capitatum Buchanan-Hamilton ex D. Don y Kickxia commutata (Bernh. ex Rchb.) Fritsch subsp. commutata.

APA, Harvard, Vancouver, ISO, and other styles

10

Barros, Fábio de. "Novas combinações, novas ocorrências e notas sobre espécies pouco conhecidas, para as orquídeas do Brasil." Acta Botanica Brasilica 8, no. 1 (1994): 11–17. http://dx.doi.org/10.1590/s0102-33061994000100002.

Full text

Abstract:

Duas novas combinações são propostas para orquídeas brasileiras: Cyrtopodium polyphyllum (Veil.) Pabst ex F. Barros e Pseudolaelia canaanensis (Ruschi) F. Barros. Maxillciria perpai-va Garay & Dunsterv. é citada pela primeira vez para o Brasil. São apresentadas ilustrações de Maxillaria friedrichsthalii Rchb. f. e Platystele ovalifolia (Focke) Garay & Dunsterv., duas espécies coletadas raramente no Brasil.

APA, Harvard, Vancouver, ISO, and other styles

11

Doboš, Marko. "Nekoliko hibrida s Papuka – rijetki ili novi taksoni u nacionalnoj flori." Glasnik Hrvatskog botaničkog društva 11, no. 2 (2023): 129–38. http://dx.doi.org/10.46232/glashbod.11.2.5.

Full text

Abstract:

Four hybrid taxa, previously rarely, or now for the first time recorded in Croatia, observed during the spring of 2020 and 2022 on Mt. Papuk, are presented. A hybrid of Primula vulgaris Huds. and P. veris L. called P. × polyantha Mill. is known as an ornamental plant, which comes in a whole palette of colors, but the occurrence of spontaneous hybrids that occur in nature in Croatia has been discussed in print only once, by Degen in 1937. Ophrys × hybrida Pokorny ex Rchb. f. is a cross between O. sphegodes Mill.and O. insectifera L., and it has never previously been recorded in Croatia. Orchis × beyrichii (Rchb. f.) A. Kern. and O. × angusticruris Franch are rarely recorded hybrids in which O. simia Lam. participates, the first by crossing with the species O. militaris L., and the second with O. purpurea Huds.

APA, Harvard, Vancouver, ISO, and other styles

12

Reshetnikova, N. M. "New species of the genus Jurinea (Asteraceae) from the Lower Volga region." Novitates Systematicae Plantarum Vascularium 55 (2024): 103–9. https://doi.org/10.31111/novitates/2024.55.11.

Full text

Abstract:

A new species, Jurinea edecurrens N. Reshetnikova (section Cyanoides (Korsh. ex Sosn.) Iljin), is described from the Lower Volga region (Saratov Region, Russia). Its distinctions from similar J. polyclonos (L.) DC., J. tenuiloba Bunge,J. cyanoides (L.) Rchb. and J. ewersmannii Bunge are specified. J. edecurrens is suggested to be a hybridogenic species, locally distributed in the Saratov Region (known from at least 8 localities in 6 administrative districts).

APA, Harvard, Vancouver, ISO, and other styles

13

Нотов, Александр Александрович, Владимир Иванович Фертиков, Александр Вадимович Павлов, Валерий Александрович Нотов, Светлана Алексеевна Иванова, and Людмила Викторовна Зуева. "On the floristic diversity of forest-swamp ecosystems on the right bank of the Lob river." Herald of Tver State University. Series: Biology and Ecology, no. 3(67) (October 27, 2022): 110–21. http://dx.doi.org/10.26456/vtbio270.

Full text

Abstract:

Лесоболотные массивы правого берега реки Лоби приурочены к территории национального парка «Государственный комплекс «Завидово». Они характеризуются высоким уровнем флористического разнообразия. Выявлено распространение видов сосудистых растений, мохообразных и лишайников, занесенных в региональные и федеральную Красные книги, индикаторных видов биологически ценных лесов. Среди видов, включенных в Красную книгу Российской Федерации, Cypripedium calceolus L., Dactylorhiza baltica (Klinge) Nevski, D. traunsteineri (Saut. ex Rchb. f.) Soó, Lobaria pulmonaria (L.) Hoffm., Menegazzia terebrata (Hoffm.) A. Massal. Большая часть местообитаний охраняемых и индикаторных видов расположена в старовозрастных черноольшаниках, осинниках, участках неморальных сообществ с липой. Forest-swamp ecosystems on the right bank of the Lob River are located on the territory of the «State Complex «Zavidovo» National Park. They are characterized by a high level of floristic diversity. We have studied the distribution of vascular plant species, lichens and bryophytes that are listed in the federal and regional Red Data Books, as well as indicator species of biologically valuable forests. Among the species listed in the Red Data Book of the Russian Federation are Cypripedium calceolus L., Dactylorhiza baltica (Klinge) Nevski, D. traunsteineri (Saut. ex Rchb. f.) Soó, Lobaria pulmonaria (L.) Hoffm., Menegazzia terebrata (Hoffm.) A.Massal. Most of the habitats of protected and indicator species are located in old-growth black alder forests, aspen forests and nemoral communities with linden.

APA, Harvard, Vancouver, ISO, and other styles

14

Giorgi, Annamaria, Alessandra Manzo, Niranjala Nanayakkarawasam Masachchige Chandr, Luca Giupponi, Maurizio Cocucci, and Sara Panseri. "Effect of biotic and abiotic stresses on volatile emission ofAchillea collinaBecker ex Rchb." Natural Product Research 29, no. 18 (2015): 1695–702. http://dx.doi.org/10.1080/14786419.2014.997725.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Giorgi, Annamaria, Moira Madeo, Giovanna Speranza, and Maurizio Cocucci. "Influence of environmental factors on composition of phenolic antioxidants ofAchillea collinaBecker ex Rchb." Natural Product Research 24, no. 16 (2010): 1546–59. http://dx.doi.org/10.1080/14786419.2010.490656.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Naumenko-Svetlova, A. A. "Taxonomic review of the genus Linum L. Section Adenolinum (Rchb.) Juz. (Linaceae)." Novitates Systematicae Plantarum Vascularium, no. 47 (2016): 40–84. http://dx.doi.org/10.31111/novitates/2016.47.40.

Full text

Abstract:

The species composition of the genus Linum L. section Adenolinum (Rchb.)Juz. was critically revised. The section comprises 28 species classified into 3 subsections (Longiunguiculata Svetlova, Amurense Svetlova and Breviunguiculata Svetlova), 4 series and 2 subseries. 3 new series (ser. Empetrifolia Naumenko-Svetlova, ser. Ovatosepala Naumenko-Svetlova and ser. Rotundatosepala Naumenko-Svetlova) and 2 new subseries (subser. Extraaxillaria (Optasyuk) Naumenko-Svetlova and subser. Perennia (Optasyuk) Naumenko-Svetlova) are described. One new combination in the rank of species (L. kurdicum (P. H. Davis) Naumenko-Svetlova) and two new combinations in the rank of subspecies (L. squamulosum Rudolphi subsp. tommasinii (Rchb.) Naumenko-Svetlova and L. squamulosum subsp. collinum (Boiss.) Naumenko-Svetlova) are published. It is shown that the species of the section subdivided into 3 groups according to traits of their sepals. Generally, most species within each subsection are characterized by a certain type of sepals. The most species of subsect. Longiunguiculata have elliptic or lanceolate sepals, the outer ones with (rarely without) a narrow white membranous margin, the inner with a wide margin. Most species in the subsect. Amurense have ovate to suborbicular sepals, all with a wide white membranous margin. Sepals in the subsect. Breviunguiculata are generally ovate, the outer ones with (rarely without) a narrow white membranous margin, the inner ones with a wide margin, some species (L. baicalense Juz., L. lewisii Pursh and L. leonii F. W. Schultz) having intermediate characters of flowers between subsections Longiunguiculata and Breviunguiculata. The taxonomic positions of some Adenolinum species are revised. Over 30 taxa names are reduced to synonyms. Lectotypes of L. lyallanum Alef., L. kirgisicum Alef., L. darmstadinum Alef., L. barbulatum Làng ex Rchb., Adenolinum tommasinii Rchb., L. alpinum Jacq. var. gracilius Bertol., L. montanum Schleich. ex DC., L. carnosulum Boiss. var. empetrifolium Boiss., L. punctatum С. Presl, L. lewisii Pursh and L. peyronii Post are designated. The key for the species identification is compiled. The scheme of geographical distribution follows T. V. Egorova (1999) with a few minor changes: Вост. Европа — East Europe1, Сев. Европа — Northern Europe, Атл. Европа — Atlantic Europe, Центр. Европа — Central Europe, Юж. Европа — Southern Europe, Кавказ — Caucasus, Зап. Сиб. — Western Siberia, Вост. Сиб. — Eastern Siberia, Дальн. Вост. — Far East, Зап. Азия — West Asia, Сред. Азия — Middle Asia, Центр. Азия — Central Asia, Вост. Азия — East Asia, Юж. Азия — South Asia, Юго-Вост. Азия — Southeast Asia, Сев. Америка — North America, Юж. Америка — South America, Сев. Африка — North Africa, Центр. Африка — Central Africa, Юж. Африка — South Africa, Австралия — Australia.

APA, Harvard, Vancouver, ISO, and other styles

17

Huda, Mohammed Kamrul, Mohammed Mozammel Hoque, and Md Owahidul Alam. "Three new Angiospermic (Orchidaceae) records from Bangladesh." Jahangirnagar University Journal of Biological Sciences 9, no. 1-2 (2021): 123–32. http://dx.doi.org/10.3329/jujbs.v9i1-2.53712.

Full text

Abstract:

Coelogyne schwadtkii Danell., Cleisostoma williamsonii (Rchb.) Garay. and Phalaenopsis difformis (Wall. ex Lindl.) Kocyan & Schuit. of the family Orchidaceae collected from southeast part of the country have been reported here as new angiospermic records for Bangladesh flora. Detailed critical examination of the specimens of these species has been made to confirm their taxonomic identification. Detailed taxonomic description with flowering time, ecology, geographical distribution, illustration and photographs of each species has been provided. Jahangirnagar University J. Biol. Sci. 9(1 & 2): 123-132, 2020 (June & December)

APA, Harvard, Vancouver, ISO, and other styles

18

Akdad, Mourad, and Mohamed Eddouks. "Cardiovascular Effects of Micromeria graeca (L.) Benth. ex Rchb in Normotensive and Hypertensive Rats." Endocrine, Metabolic & Immune Disorders - Drug Targets 20, no. 8 (2020): 1253–61. http://dx.doi.org/10.2174/1871530319666191206163136.

Full text

Abstract:

Aims: The present study was performed in order to analyze the antihypertensive activity of Micromeria graeca (L.) Benth. ex Rchb. Background: Micromeria graeca (L.) Benth. ex Rchb is an aromatic and medicinal plant belonging to the Lamiaceae family. This herb is used to treat various pathologies such as cardiovascular disorders. Meanwhile, its pharmacological effects on the cardiovascular system have not been studied. Objective: The present study aimed to evaluate the effect of aqueous extract of aerial parts of Micromeria graeca (AEMG) on the cardiovascular system in normotensive and hypertensive rats. Methods: In this study, the cardiovascular effect of AEMG was evaluated using in vivo and in vitro investigations. In order to assess the acute effect of AEMG on the cardiovascular system, anesthetized L-NAME-hypertensive and normotensive rats received AEMG (100 mg/kg) orally and arterial blood pressure parameters were monitored during six hours. In the sub-chronic study, rats were orally treated for one week, followed by blood pressure assessment during one week of treatment. Blood pressure was measured using a tail-cuff and a computer-assisted monitoring device. In the second experiment, isolated rat aortic ring pre-contracted with Epinephrine (EP) or KCl was used to assess the vasorelaxant effect of AEMG. Results: Oral administration of AEMG (100 mg/kg) provoked a decrease of arterial blood pressure parameters in hypertensive rats. In addition, AEMG induced a vasorelaxant effect in thoracic aortic rings pre-contracted with EP (10 μM) or KCl (80 mM). This effect was attenuated in the presence of propranolol and methylene blue. While in the presence of glibenclamide, L-NAME, nifedipine or Indomethacin, the vasorelaxant effect was not affected. Conclusion: This study showed that Micromeria graeca possesses a potent antihypertensive effect and relaxes the vascular smooth muscle through β-adrenergic and cGMP pathways.

APA, Harvard, Vancouver, ISO, and other styles

19

Giorgi, Annamaria, Raffaella Bombelli, Alessandra Luini, et al. "Antioxidant and cytoprotective properties of infusions from leaves and inflorescences ofAchillea collinaBecker ex Rchb." Phytotherapy Research 23, no. 4 (2009): 540–45. http://dx.doi.org/10.1002/ptr.2679.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Nogueira, Ricardo Eustáquio, Olinto Liparini Pereira, Maria Catarina Megumi Kasuya, Maria Célia da Silva Lanna, and Míriam Pimentel Mendonça. "Fungos micorrízicos associados a orquídeas em campos rupestres na região do Quadrilátero Ferrífero, MG, Brasil." Acta Botanica Brasilica 19, no. 3 (2005): 417–24. http://dx.doi.org/10.1590/s0102-33062005000300001.

Full text

Abstract:

Oito isolados de fungos micorrízicos rizoctonióides foram obtidos do sistema radicular de orquídeas neotropicais, a saber: Bulbophyllum weddelii (Lindl.) Rchb. f., Epidendrum dendrobioides Thunb., Maxillaria acicularis Herb. ex Lindl., Oncidium gracile Lindl., Pleurothallis teres Lindl., Prosthechea vespa (Vell.) W.E. Higgins, Sophronitis milleri (Blumensch. ex Pabst) C. Berg & M.W. Chase e Sarcoglottis sp., que ocorrem em campos rupestres da região do Quadrilátero Ferrífero, no Estado de Minas Gerais, Brasil. Três gêneros anamórficos foram identificados: Epulorhiza, isolados do sistema radicular de E. dendrobioides e S. milleri; Ceratorhiza, isolados de B. weddelii, O. gracile, P. teres e P. vespa e Rhizoctonia, isolados de M. acicularis e Sarcoglottis sp. O trabalho constitui-se no primeiro relato taxonômico e de caracterização morfológica de fungos micorrízicos rizoctonióides associados a espécies de orquídeas que ocorrem em campos rupestres no Brasil.

APA, Harvard, Vancouver, ISO, and other styles

21

NAZAROVA, N. M. "THEORETICAL AND PRACTICAL JUSTIFICATION OF ROOTSTOCK SELECTION IN VEGETATIVE REPRODUCTION OF INTRODUCED SPECIES OF THE GENUS SYRINGA L. (OLEACEAE) IN THE CONDITIONS OF THE ORENBURG REGION." Izvestiâ Timirâzevskoj selʹskohozâjstvennoj akademii, no. 1 (2024): 30–40. http://dx.doi.org/10.26897/0021-342x-2024-1-30-40.

Full text

Abstract:

The proper selection of rootstock and graft combinations in lilac introducers, in order to take full advantage of grafting, requires a thorough understanding of the synergy of cultivar-rootstock combinations, as well as the identification of factors that may influence this process. The article analyzes the results of three grafting experiments using Syringa vulgaris L. and Syringa josikaea J. Jacq. ex Rchb. seedlings and vegetative rootstocks (rooted shoots) of Syringa vulgaris L. as rootstocks. The grafting material was the dormant buds of four highly ornamental cultivars of S. vulgaris L. – ‘Au- cubaefolia’, ‘Sensation’, ‘Marc Micheli’, ‘Congo’ and the late hybrid Syringa × prestoniae МсКelveу ‘Miss Canada’. It was found that the survival rate of cultivars on a particular rootstock may depend on the systematic affiliation of the mother plants of the cultivars. The best survival rate among all studied cultivars in the climatic conditions of the Orenburg region is achieved when using rooted vegetative shoots of S. vulgaris as a rootstock (over 90%), the worst – on the seed rootstock of S. josikea J. Jacq. ex Rchb. (up to 40%). The influence of the ambient temperature and humidity at the time of oculant fusion on the survival rate of grafts using S. vulgaris L. vegetative rootstock has been demonstrated (Wilcoxon T-test, statistical significance level p <<0.05). It is recommended to select the rootstock individually for each cultivar in order to achieve maximum survival rates of lilac cultivars in the climatic and geographical conditions of the Orenburg region and/or regions with similar conditions.

APA, Harvard, Vancouver, ISO, and other styles

22

Cristaldo, Ana Cristina de Meira, Arnildo Pott, and Ângela Lúcia Bagnatori Sartori. "O gênero Rhynchosia Lour. (Leguminosae, Papilionoideae) em Mato Grosso do Sul, Brasil." Biota Neotropica 12, no. 4 (2012): 221–37. http://dx.doi.org/10.1590/s1676-06032012000400023.

Full text

Abstract:

Rhynchosia, gênero pantropical, é constituído por 230 espécies distribuídas principalmente nos neotrópicos, considerado o centro de diversidade do grupo. Está relacionado filogeneticamente com o gênero Eriosema (DC.) Rchb., do qual se diferencia principalmente por características morfológicas. Em Mato Grosso do Sul está representado por oito táxons: Rhynchosia balansae Micheli var. balansae, R. balansae var. psilantha Fortunato, R. clausseni Benth., R. corylifolia Mart. ex Benth., R. edulis Griseb., R. leucophylla Benth., R. melanocarpa Grear e R. minima (L.) DC. O presente estudo apresenta chave de identificação, descrições, comentários, ilustrações, dados de distribuição geográfica e dos ambientes preferenciais de cada táxon.

APA, Harvard, Vancouver, ISO, and other styles

23

Karlová, K. "Accumulation of flavonoid compounds in flowering shoots of Achillea collina Becker ex. Rchb. Alba during flower development." Horticultural Science 33, No. 4 (2011): 158–62. http://dx.doi.org/10.17221/3756-hortsci.

Full text

Abstract:

&nbsp;The objective of this paper was a screening of flavonoid content in Achillea collina Becker ex. Rchb. Alba flowering tops (Herba millefolii) and flowers (Flos millefolii). Ten developmental stages of plant (flowers and tops separately) &ndash; from the beginning of flower differentiation to ripe seed stage &ndash; were studied. The methanol extract of plant material was used for HPLC analysis. The flavones apigenin, luteolin, and their 7-O-glucosides were found as the main flavonoid constituents in all developmental stages of both flower and top drug. Apigenin and apigenin-7-O-glucoside contents have a similar accumulation tendency during ontogenesis &ndash; their contents fluently increased until the full flower phase and then they decreased. Maximal apigenin and apigenin-7-O-glucoside content was established to range between 0.6 and 0.7 mg/g in millefolii herba and 0.9 and 1.3 mg/g in millefolii flos. The luteolin content has the same tendency and also quantity as apigenin and the highest value at the full flowering stage was found even stronger. On the other hand, luteolin-7-O-glucoside has the highest content at the stage of small flower bud (about 1.0 mg/g). Its amount decreased later on and it increased to the second maximum at the full flower phase. &nbsp;

APA, Harvard, Vancouver, ISO, and other styles

24

LENDVAY, Bertalan, Andrzej PEDRYC, and Mária Höhn. "Characterization of Nuclear Microsatellite Markers for the Narrow Endemic Syringa josikaea Jacq. fil. ex Rchb." Notulae Botanicae Horti Agrobotanici Cluj-Napoca 41, no. 1 (2013): 301. http://dx.doi.org/10.15835/nbha4119023.

Full text

Abstract:

The species of the genus Syringa L. are among the most popular ornamental plants worldwide. One particular species, Syringa josikaea, a rare endemic of the Carpathian Mountains, is of great conservation interest. Although microsatellite markers may be useful for studying the genetic variability of varieties and populations, no microsatellites have previously been characterized for any species of the Syringa genus. Our aim was therefore to test the applicability of microsatellite primers developed for neighboring genera (Olea and Ligustrum) and to complement these with markers isolated and characterized for S. josikaea. Twelve primer pairs of Olea and Ligustrum were tested by optimizing PCR conditions and checking the variability in 40 samples of two populations of S. josikaea. Two of them proved to be easy to PCR amplify and variable at the same time. To develop new primers we constructed a microsatellite enriched library and sequenced 48 clones. 18 sequences contained microsatellite motifs, and three of the designed primer pairs presented high allele variability. The five primer pairs characterized for S. josikaea proved to be highly informative and sufficient to distinguish between individuals. These microsatellite primers are valuable tools to study genetic variation of native populations, genetic lineages of hybrids and cultivars of S. josikaea.

APA, Harvard, Vancouver, ISO, and other styles

25

Мельник, В. І. "Екотони і охорона флористичного різноманіття". Reports of the National Academy of Sciences of Ukraine, № 3 (6 липня 2021): 86–95. http://dx.doi.org/10.15407/dopovidi2021.03.086.

Full text

Abstract:

Вивчення екотонів як унікальних осередків флористичного різноманіття є актуальним завданням екологічних досліджень. На основі детального аналізу умов місцезростань двох рідкісних і зникаючих видів, реліктів та ендеміків флори Європи Daphne sophia Kalen (Thymeleaceae) та Syringa josikaea J. Jacq. ex Rchb. (Oleaceae), встановлена їх приуроченість до екотонів. Визначені закономірності формування, організації та розвитку екотонів як унікальних місцезростань рідкісних і зникаючих видів. Приуроченість ряду рідкісних видів до екотонів обумовлює лінійну або стрічкову просторову структуру їх популяцій. Антропогенний пресинг на екотони призводить до трансформації лінійних популяцій у локальні ізольовані популяції. Щоб упередити зникнення рідкісних видів, ценотично пов’язаних з екотонами, їх популяції необхідно взяти під охорону, передбачивши природоохоронний менеджмент і моніторинг за станом популяцій.

APA, Harvard, Vancouver, ISO, and other styles

26

Kornil’yev, G. V., A. E. Paliy, V. D. Rabotiagov, and B. A. Vinogradov. "Content of volatile substances in water-ethanol extracts of Achillea millefolium L. and Achillea collina J. Becker ex Rchb." Studia Biologica 5, no. 3 (2011): 103–8. http://dx.doi.org/10.30970/sbi.0503.169.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

ДАВИДОВ, Денис Анатолійович. "НОВІ ДАНІ ПРО ПОШИРЕННЯ ДЕЯКИХ РЕГІОНАЛЬНО РІДКІСНИХ ВИДІВ СУДИННИХ РОСЛИН У ПОЛТАВСЬКІЙ ОБЛАСТІ". Біологія та екологія 5, № 2 (2018): 68–75. https://doi.org/10.5281/zenodo.2367423.

Full text

Abstract:

During field expeditions in 2005–2018 in Poltava region author found localities of 103 regionally rare vascular plant specie. Data about distribution of 9 model species had been indicated in this paper: Dryopteris cristata (L.) A. Gray (new species for Kotelva district, confirmed for Poltava district), Aconitum lasiostomum Rchb. ex Besser (con-firmed for Poltava district), Halimione verrucifera (M. Bieb.) Aellen (confirmed for Kremenchuk district), Thymus tshernjajevii Klokov & Des.-Shost. (new for Dykanka and Novi Sanzhary districts, confirmed for Kotelva district), Chartolepis intermedia Boiss. (new for Novi Sanzhary district, confirmed for Karlivka, Reshetylivka and Poltava districts), Jurinea multiflora (L.) B. Fedtsch. (new for Novi Sanzhary and Poltava districts), Senecio borysthenicus (DC.) Andrz. ex Czern. (new for Velyka Bahachka, Kotelva and Shyshaky districts, confirmed for Novi Sanzhary district), Serratula coronata L. (new for Reshetylivka district, confirmed for Karlivka district) and Aegilops cylindrical Host (new for Kotelva and Novi Sanzhary districts, confirmed for Poltava town). List of all localities and short characteristics of ecological and coenotic conditions for found populations in Poltava region has been also indicated.

APA, Harvard, Vancouver, ISO, and other styles

28

Wibawa, I. Putu Agus Hendra, Putri Sri Andila, Vienna Saraswaty, and I. Gede Tirta. "Phytochemical properties and antioxidant activities of the leaf extracts of Boenninghausenia albiflora (Hook.) Rchb. ex. Meisn. (Rutaceae)." Berkala Penelitian Hayati 25, no. 2 (2020): 12–17. http://dx.doi.org/10.23869/bphjbr.25.2.20201.

Full text

APA, Harvard, Vancouver, ISO, and other styles

29

Salmanova, R. "Distribution of Species of the Orchidaceae Juss. in the Shrubbery and Forest Vegetation of the Nakhchivan Autonomous Republic." Bulletin of Science and Practice 6, no. 9 (2020): 62–68. http://dx.doi.org/10.33619/2414-2948/58/06.

Full text

Abstract:

The results of studies on the distribution of species of the Orchidaceae Juss. family in the shrubbery and forest vegetation of the Nakhchivan Autonomous Republic have been presented in paper. The Listera ovata (L.) R. Br. species was identified in small groups (by 2–3 individuals in each) in the upper part of the Duylunchay river basin of the Ordubad districts, in the lower and middle mountains in the vicinity of the Mazra River, in formations in shady places have been revealed during the studies. Species Listera ovata (L.) R. Br., Dactylorhiza umbrosa (Kar. & Kir.) Nevski, D. salina (Turcz. ex Lindl.) Soó, Orchis simia Lam., O. mascula (L.) L., Platanthera chlorantha (Custer) Rchb., Anacamptis laxiflora ssp. palustris (Jacq.) Kuropatkin & Efimov, of the Orchidaceae family are most often found among the shrubbery and forest vegetation of the study area.

APA, Harvard, Vancouver, ISO, and other styles

30

Gado, D. A., M. A. Abdalla, A. S. Ahmed, B. Madikizela, and L. J. McGaw. "Isolation and characterization of antibacterial compounds from Loxostylis alata A. Spreng. ex Rchb leaf extracts against Salmonella serovars." South African Journal of Botany 115 (March 2018): 285–86. http://dx.doi.org/10.1016/j.sajb.2018.02.039.

Full text

APA, Harvard, Vancouver, ISO, and other styles

31

Giorgi, Annamaria, Marco Mingozzi, Moira Madeo, Giovanna Speranza, and Maurizio Cocucci. "Effect of nitrogen starvation on the phenolic metabolism and antioxidant properties of yarrow (Achillea collina Becker ex Rchb.)." Food Chemistry 114, no. 1 (2009): 204–11. http://dx.doi.org/10.1016/j.foodchem.2008.09.039.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

Loos, G. H. "Zur Identität vonCarex leersiana Rauschert,C. chabertii F. W. Schultz,C. polyphylla Kar. & Kir. undC. guestphalica (Boenn. ex Rchb.) Boenn. ex O. F. Lang." Feddes Repertorium 107, no. 1-2 (1996): 61–74. http://dx.doi.org/10.1002/fedr.4921070109.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Silva, Gonçalo Santos da, and Margarete Magalhães Souza. "Relações genômicas entre os subgêneros de Decaloba (DC.) Rchb. e Passiflora L." Semina: Ciências Biológicas e da Saúde 38, no. 1supl (2018): 231. http://dx.doi.org/10.5433/1679-0367.2017v38n1suplp231.

Full text

Abstract:

A GISH (Genomic In Situ Hybridization) pode ser utilizada com sucesso para determinar a origem e entender as relações evolutivas entre diferentes espécies de plantas. Esse trabalho teve como objetivo analisar as relações genômicas entre os subgêneros Decaloba e Passiflora através da GISH. Foram utilizadas oito espécies do subgênero Passiflora: Passiflora alata Curtis (2n = 18), P. cincinnata Mast. (2n = 18), P. coccinea Aubl. (2n = 18), P. edulis Sims (2n = 18), P. foetida L. (2n = 22), P. ligularis Juss. (2n = 18), P. nitida Kunth (2n = 18), P. vitifolia Kunth (2n = 18) e oito espécies do subgênero Decaloba: P. biflora Lam. (2n = 12), P. capsularis L. (2n = 12), P. cervii Milward-de-Azevedo (2n = 12), P. coriacea Juss. (2n = 12), P. micropetala Mart. ex. Mast. (2n = 12), P. morifolia Mast. (2n = 12), P. rubra L. (2n = 12), P. suberosa L. (2n = 12). Para a GISH foram utilizadas metáfases de P. edulis. O DNA genômico das espécies foi marcado com Dig-11-dUTP (Roche®) via nick translation e detectada com anti-digoxigenina-rodamina (Roche®). As sondas genômicas de P. alata, P. cincinnata, P. coccinea, P. edulis, P. nitida e P. vitifolia hibridaram intensamente e de maneira uniforme ao logo de todos os cromossomos de P. edulis. Já as sondas de P. ligularis e P. foetida produziram sinais dispersos distribuídos ao longo de todos os cromossomos, com exceção para os sítios de DNAr 45S que produziram sinais intensos e brilhantes. As sondas genômicas das espécies pertencentes ao subgênero Decaloba produziram sinais de hibridação restritos a quatro sítios em P. edulis, que correspondem aos sítios de DNAr. A relação entre os subgêneros Decaloba e Passiflora mostrou ser muito distante, pois os únicos sinais de hibridação detectáveis com a utilização das sondas genômicas das espécies de Decaloba foram restritas aos sítios de DNAr 45S. Claramente as sequências de DNA repetitivo compartilham muito pouco em comum entre os dois subgêneros. Esses resultados mostram que esses dois subgêneros divergiram há muito tempo, uma vez que a proporção de DNA repetitivo diminui com divergência evolutiva entre as espécies.AGRADECIMENTOS: CAPES, CNPq, FAPESB, UESC.

APA, Harvard, Vancouver, ISO, and other styles

34

Iamonico, D. "Notas sobre Tanacetum corymbosum s. l. (Asteraceae)." Collectanea Botanica 37 (December 28, 2018): 013. http://dx.doi.org/10.3989/collectbot.2018.v37.013.

Full text

Abstract:

Se presenta un estudio nomenclatural y taxonómico sobre Chrysanthemum italicum L., C. achilleae L., C. tanacetifolium Pourr., Pyrethrum cinereum Griseb., P. clusii Fisch. ex Rchb., P. clusii Tausch, P. daucifolium Pers. y P. tenuifolium Ten., táxones que pertenecen al grupo crítico de Tanacetum corymbosum. Se propone una nueva clasificación infraespecífica de Tanacetum corymbosum (L.) Sch. Bip. s. l. y se reconocen cinco subespecies sobre la base de un estudio morfológico del material tipo y otros especímenes. Se proporciona una clave de diagnóstico de los táxones estudiados. Se propone también un cambio nomenclatural, i.e. Tanacetum corymbosum subsp. daucifolium (Pers.) Iamonico comb. nov. Se designan lectotipos para los nombres Chrysanthemum cinereum (espécimen conservado en GOET), Chrysanthemum achilleae (imagen de Micheli), Chrysanthemum italicum (en LINN), Pyrethrum clusii de Rechenbach (ilustración de Clusius), Pyrethrum tenuifolium (en G) y Pyrethrum clusii de Tausch (imagen de Clusius). Se designa un neotipo para Chrysanthemum tanacetifolium (en P).

APA, Harvard, Vancouver, ISO, and other styles

35

Gusar, A. S., L. V. Buglova, and M. V. Kozlova. "The estimation of Trollius L. species and hybrids by seed germination." Проблемы ботаники южной сибири и монголии 20, no. 1 (2021): 147–50. http://dx.doi.org/10.14258/pbssm.2021027.

Full text

Abstract:

The article describes the laboratory germination and seed dormancy duration of five Trollius species andfour hybrids, which has been grew ex situ. The species and forms with high seed germination were detected from the dataobtained: T. ledebourii Rchb. (92 %), T. chinensis Bunge (93,5 %) end T. chinensis × T. ledebourii (82 %). Besides a high germination, the T. ledebourii seeds have the short dormancy period (22 days) and good sprouts. Therefore, the T. ledebourii seeds can be recommended for both autumn and spring sowing. The above mentioned Trollius species and forms arepotential for ornamental cultivar creation by further selection. The seeds of following species and forms T. apertus Perf.ex Igoschina, T. europaeus L., T. sajanensis (Malyschev) Sipliv., T. asiaticus × T. sajanensis, T. ledebourii × T. altaicus and T.× cultorum have low germination and long dormancy period. The examination of stratification treatment parameters andagrotechnical measures is needed for the germination of these seeds to get higher.

APA, Harvard, Vancouver, ISO, and other styles

36

Mi, Ze-Yuan, Qian Zhao, Chan Lu, et al. "Genome-Wide Analysis and the Expression Pattern of the MADS-Box Gene Family in Bletilla striata." Plants 10, no. 10 (2021): 2184. http://dx.doi.org/10.3390/plants10102184.

Full text

Abstract:

Bletilla striata (Thunb. ex A. Murray) Rchb. f., a species of the perennial herb Orchidaceae, has potent anti-inflammatory and antiviral biological activities. MADS-box transcription factors play critical roles in the various developmental processes of plants. Although this gene family has been extensively investigated in many species, it has not been analyzed for B. striata. In total, 45 MADS-box genes were identified from B. striata in this study, which were classified into five subfamilies (Mδ, MIKC, Mα, Mβ, and Mγ). Meanwhile, the highly correlated protein domains, motif compositions, and exon–intron structures of BsMADSs were investigated according to local B. striata databases. Chromosome distribution and synteny analyses revealed that segmental duplication and homologous exchange were the main BsMADSs expansion mechanisms. Further, RT-qPCR analysis revealed that BsMADSs had different expression patterns in response to various stress treatments. Our results provide a potential theoretical basis for further investigation of the functions of MADS genes during the growth of B. striata.

APA, Harvard, Vancouver, ISO, and other styles

37

Куркин, Владимир Александрович, Анастасия Игоревна Васькова та Татьяна Константиновна Рязанова. "Сравнительное исследование компонентного состава эфирного масла травы видов рода тысячелистник". Химико-фармацевтический журнал 59, № 01 (2025): 42–47. https://doi.org/10.30906/0023-1134-2025-59-01-42-47.

Full text

Abstract:

Проведено сравнительное исследование компонентного состава эфирного масла травы тысячелистника обыкновенного (Achillea millefolium L.), тысячелистника хрящеватого (Achillea cartilaginea Ledeb. ex Rchb.) и тысячелистника благородного (Achillea nobilis L.) методами газовой хромато-масс-спектрометрии и спектрофотометрии. С использованием газовой хромато-масс-спектрометрии определено, что образцы эфирных масел травы исследуемых видов рода Тысячелистник характеризуется высоким содержанием моно- и бициклических монотерпенов, среди которых общими компонентами являются эвкалиптол (цинеол), кариофиллен оксид, β-пинен, α-терпинеол, 4-терпинеол, γ-терпинен, камфен и β-кубенен. Однако принципиальным отличием эфирных масел является уровень содержания хамазулена: в тысячелистнике обыкновенном — 7,53 %, в тысячелистнике хрящеватом — 0,22 %, а в тысячелистнике благородном отсутствует. Определено также, что содержание проазуленов в траве тысячелистника обыкновенного значительно выше по сравнению с таковым тысячелистника хрящеватого и тысячелистника благородного (0,0411, 0,0012 и 0,0015 % соответственно), хотя при этом нефармакопейные виды тысячелистника отличаются более высоким содержанием эфирного масла. Следовательно, результаты проведенных исследований свидетельствуют о целесообразности стандартизации травы тысячелистника обыкновенного не только по содержанию эфирного масла и сумме флавоноидов, но и по содержанию проазуленов, обусловливающих противовоспалительные свойства препаратов данного сырья.

APA, Harvard, Vancouver, ISO, and other styles

38

Gillespie, Lynn J., Jeffery M. Saarela, Paul C. Sokoloff, and Roger D. Bull. "New vascular plant records for the Canadian Arctic Archipelago." PhytoKeys 52 (June 25, 2015): 23–79. https://doi.org/10.3897/phytokeys.52.8721.

Full text

Abstract:

The Canadian Arctic Archipelago is a vast region of approximately 1,420,000 km2, with a flora characterized by low species diversity, low endemicity, and little influence by alien species. New records of vascular plant species are documented here based on recent fieldwork on Victoria and Baffin Islands; additional records based on recent literature sources are mentioned. This paper serves as an update to the 2007 publication Flora of the Canadian Arctic Archipelago, and brings the total number of vascular plants for the region to 375 species and infraspecific taxa, an increase of 7.7%. Three families (Amaranthaceae, Juncaginaceae, Pteridaceae) and seven genera (Cherleria L., Cryptogramma R. Br., Platanthera Rich., Sabulina Rchb., Suaeda Forssk. ex J.F. Gmel., Triglochin L., Utricularia L.) are added to the flora, and one genus is deleted (Minuartia L.). Five species are first records for Nunavut (Arenaria longipedunculata Hultén, Cryptogramma stelleri (S.G. Gmel.) Prantl, Puccinellia banksiensis Consaul, Saxifraga eschscholtzii Sternb., Utricularia ochroleuca R.W. Hartm.)

APA, Harvard, Vancouver, ISO, and other styles

39

Petrova, Natal'ya Valeriyevna, Aleksey Leonidovich Shavarda, Nina Anatol'yevna Medvedeva, et al. "PROFILING SCREENING OF 55 SPECIES OF THE GENUS EUPHORBIA L. (EUPHORBIACEAE) AS POTENTIAL SOURCES OF ELLAGIC ACID." chemistry of plant raw material, no. 1 (March 13, 2023): 87–100. http://dx.doi.org/10.14258/jcprm.20230111388.

Full text

Abstract:

Methanol extracts from the leaves of 55 species, belonging to 4 subgenera and 16 subsection of genus Euphorbia (Euphorbiaceae) have been screened for presence of ellagic acid (EA). EA was quantified by gas chromatography-mass spectrometry (GC-MS) in fresh plant material Euphorbia sp. growing in Russia and Kyrgyzstan in the wild and in indoor and outdoor collections of the Peter the Great Botanical Garden of the Komarov Botanical Institute of the Russian Academy of Sciences (Saint-Petersburg). EA was detected in the extracts of 17 species of tree subgenera. In subgenus Althymalus Neck. Ex Rchb. EA was detected in E. hamata (Haw.) Sweet (section Anthacanthae Lem.), in subgenus Chamaesyce Raf. – E. maculata L. (section Anisophyllum Roep.); in subgenus Esula Pers. This compound was found in representatives of sections Esula (Pers.) Dumort. (E. virgata Waldst. Et Kit.), Helioscopia Dumort. (E. alpina Ledeb., E. aristata Schmalh., E. condylocarpa M. Bieb., E. lucorum Rupr. ex Maxim., E. palustris L., E. procera M. Bieb., E. semivillosa (Prokh.) Kryl., E. squamosa Willd., E. stricta L.), Holophyllum (Prokh.) Prokh. (E. griffithii Hook. f., E. komaroviana Prokh., E. rupestris Ledeb.), Paralias Dumort. (E. taurinensis All.) and Pithyusa (Raf.) Lázaro (E. glareosa Pall. Ex M. Bieb.). In 38 EA was not detected, including all studies species of subgenus Euphorbia. For 10 species (E. alpina, E. glareosa, E. griffithii, E. hamata, E. lucorum, E. procera, E. rupestris, E. semivillosa, E. stricta and E. taurinensis) EA was detected for the first time. Highest EA amount was found in leaves of E. hamata (4100 ppm) and E. squamosa (4300 ppm).

APA, Harvard, Vancouver, ISO, and other styles

40

Loos, G. H. "Zur Identität von Carex leersiana Rauschert, C. chabertii F. W. Schultz, C. polyphylla Kar. & Kir. und C. guestphalica (Boenn. ex Rchb.) Boenn. ex O. F. Lang." Feddes Repertorium 107, no. 1-2 (2008): 61–74. http://dx.doi.org/10.1002/fedr.19961070109.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

TURK, Boris, Dea BARIČEVIČ, and Franc BATIČ. "Essential oil content, chamazulene content and antioxidative properties of Achillea millefolium agg. extracts from Slovenia." Acta agriculturae Slovenica 117, no. 2 (2021): 1. http://dx.doi.org/10.14720/aas.2021.117.2.2072.

Full text

Abstract:

The study aimed to clarify some biochemical properties, important for the phytopharmaceutical use of yarrow from the A. millefolium agg.. The study comprised 41 populations from Slovenia. The most abundant taxa were included: Achillea millefolium L., A. roseoalba Ehrend., A. collina (Wirtg.) Becker ex Rchb., A. distans Waldst. &amp; Kit. ex Willd., A. pannonica Scheele, A. pratensis Saukel &amp; R.Länger and A. nobilis L. Assessment of essential oil content with the steam distillation method showed no significant difference between taxa. Essential oil content was the lowest in A. collina (6.50 ml kg-1 of dry matter), followed by A. pannonica (7.75 ml kg-1), A. distans (8.50 ml kg-1), A. nobilis (9.40 ml kg-1), A. pratensis (9.65 ml kg-1), A. nobilis × A. millefolium (12.25 ml kg-1), A. roseoalba (12.75 ml kg-1) and A. millefolium (13.50 ml kg-1). The content of azulenes was determined by photometrical measurement of chamazulene in essential oil extracts. Chamazulene was only present in the diploid taxon and one tetraploid taxon, i.e., A. roseoalba (0.16 % of dry plant mass) and A. collina (0.05 %). The differences in antioxidative capacity of extracts from different taxa were not statistically significant, so we can assume that specific antioxidative capacity is not bound to a specific taxon or ploidy level.

APA, Harvard, Vancouver, ISO, and other styles

42

Dinçer, Dilek, Mine Özkil, Hilmi Torun, and Adem Özarslandan. "The importance of host weed species for root-knot nematodes, Meloidogyne spp. Göldi, 1897 (Tylenchida: Heteroderidae) in banana plantations." Turkish Journal of Entomology 48, no. 2 (2024): 183–94. http://dx.doi.org/10.16970/entoted.1403125.

Full text

Abstract:

Banana is a significant economic source in Türkiye. Root-knot nematodes, Meloidogyne spp. Göldi, 1897 (Tylenchida: Heteroderidae) are the important pests in banana fields. This study was conducted from 2021 to 2022 to elucidate the relationship between root-knot nematodes and weed species in bananas in the Mediterranean Region. 2% of the banana production area in Adana, Antalya, Hatay and Mersin were surveyed regularly for this purpose. 1m2 frames were placed within a 2m radius around banana plants in the sampled areas. The host of root-knot nematodes with weed species identified within the frames was examined. Survey results indicated that Amaranthus retroflexus L. (46.34%), Portulaca oleracea L. (40.63%), and Solanum nigrum L. (37.84%) were the weed species most infected with root-knot nematodes. Furthermore, molecular analyses revealed that Abutilon theophrasti Medik., Amaranthus spp., Cucumis melo var. agrestis Naudin., Erodium cicutarium (L.) L'Hér. ex Aiton, Kickxia commutata (Bernh. ex Rchb.) Fritsch, Malva spp., Mercurialis annua L., P. oleracea, S. nigrum, and Sonchus oleraceus L. were suitable hosts for root-knot nematodes. This study is an important step in understanding the interaction between root-knot nematodes and weeds in banana. The presence of weed species in agricultural fields should be considered as they may support nematode populations and pose a threat to subsequent crops. Therefore, the implementation of weed control strategies could help producers to control nematode populations.

APA, Harvard, Vancouver, ISO, and other styles

43

Khramov, Robert, Natalia Martynova, Natalia Besschetnova, Vladimir Besschetnov, and Yuriy Luponosov. "The effectiveness of agrotextile cover with organic photoluminophore in rooting cuttings of Hungarian lilac (Syringa josikaea J. Jacq. ex Rchb.)." BIO Web of Conferences 42 (2022): 01017. http://dx.doi.org/10.1051/bioconf/20224201017.

Full text

Abstract:

The effectiveness of the use of a light-transforming shelter of vegetation structures consisting of a polypropylene spunbond with an organic photoluminophore integrated into its structure during the rooting of physiologically active stem cuttings of Hungarian lilac was studied. The object of the study was reproductively mature Hungarian lilac plants located in the arboretum of the Nizhny Novgorod State Agricultural Academy with geographical coordinates 56°14'32.7” N 43°57'20.7”E. The unequal reaction of the tested samples of Hungarian lilac to the use of luminophore in the shelters of vegetation structures during the rooting of cuttings was established, which manifested itself in all characteristics of regeneration processes. High rates of callus formation were in the shelter variants with a higher concentration of luminophore: 73.16 ± 5.95% and 65.25± 4.80%. Lower than in other shelters, the result was recorded in the variant with the lowest luminophore density: 47.00 ± 3.62%.

APA, Harvard, Vancouver, ISO, and other styles

44

Kornil’yev, Gurii, Anfisa Paliy, Valerii Ezhov, and Valerii Rabotiagov. "Phenolic substances in Achillea millefolium L. and Achillea collina J. Becker ex Rchb. grown in Southern Coast of the Crimea." Chornomorski Botanical Journal 7, no. 4 (2011): 355–59. http://dx.doi.org/10.14255/2308-9628/11.74/5.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

Prasongsom, Sasikarn, Kanchit Thammasiri, and Hugh W. Pritchard. "Seed dormancy concepts in orchids: Dendrobium cruentum as a model species." Seed Science Research 32, no. 3 (2022): 175–86. http://dx.doi.org/10.1017/s0960258522000198.

Full text

Abstract:

AbstractGenerally, orchids produce dust-like seeds in which endosperm reduction and embryo undifferentiation represent a derived state shared with species in about 11 other plant families. Orchid seeds are proposed to have a special kind of morphological or morphophysiological dormancy. We test this proposition, overcoming several design limitations of earlier studies, specifically that the in vitro germination method for orchid seeds uses pro-oxidants for disinfection and incorporates nitrate in the medium; both ‘treatments’ might contribute to dormancy breaking, potentially confounding judgement on the depth and nature of the dormant state. Seeds of the tropical orchid Dendrobium cruentum Rchb. f., were sown both in vitro, on a nutrient medium, and ex vitro, on plain agar omitting prior disinfection with sodium hypochlorite. Seeds previously stored and fresh seeds were incubated under combinations of vitro conditions, light treatments, constant or alternating temperatures and nitrate concentration. Seeds of D. cruentum are very small but have a large embryo that occupies most of the seed. Over a range of constant temperature seeds germinated to the spherical protocorm stage just as well ex vitro as in vitro. Neither light nor nitrate were prerequisites for ex vitro germination. The ability of D. cruentum seed to germinate in the absence of environmental or chemical stimuli suggests that mature seed can be non-dormant. Our results support the proposition that neither all DUST seed fit a dormancy class nor all orchids produce morphological or morphophysiological seeds. Finally, embryo/seed volume determinations in orchids may prove as valuable in studies on the evolution and ecology of germination and dormancy as embryo:seed ratios in other angiosperm species.

APA, Harvard, Vancouver, ISO, and other styles

46

Pînzaru, P. "Notes on the flora of the Republic of Moldova and Piedmont Region in Italy." Novitates Systematicae Plantarum Vascularium 44 (2013): 218–29. http://dx.doi.org/10.31111/novitates/2013.44.218.

Full text

Abstract:

A new variety Astragalus vesicarius L. var. angelicae Pînzaru var. nova and two new forms Campanula glomerata L. var. cervicarioides (Schult.) Pînzaru f. xeniae Pînzaru et A. Ruschuk forma nova and Iris aphylla L. f. iulitae Pînzaru forma nova are described from the Republic of Moldova; a new variety Thalictrum foetidum L. var. delponteanum Pînzaru var. nova is described from Italy. Two new combinations Astragalus vesicarius var. pseudoglaucus (Klokov) Pînzaru comb. et stat. nov. and Centaurea orientalis L. f. rubescens (DC.) Pînzaru comb. et stat. nov. are published. 11 taxa are cited as new to the Republic of Moldova: Aconitum eulophum Rchb., Anthriscus longirostris Bertol. Bromopsis erecta (Huds.) Fourr., Carduus acanthoides L. f. albiflorus Schur, Centaurea orientalis f. rubescens, Chaerophyllum nodosum (L.) Crantz, Glaucium corniculatum (L.) Rudolph var. tricolor (Bernh. ex Besser) Ledeb., Orobanche hederae Duby, Pulmonaria officinalis L. f. albiflora (Tausch) Beck, Thalictrum foetidum var. foetidum and Veronica prostrata L. f. albiflora J. Keller. Two nomina nova are published: Stipa moraldoi Pînzaru nom. nov. and Viola danielae Pînzaru nom. nov.

APA, Harvard, Vancouver, ISO, and other styles

47

Gizhitskaya, Svetlana A., and Elena M. Lyakh. "Potential for using ornamental bushes for greening the city of Novosibirsk: in case of the genus Syringa L." BIO Web of Conferences 24 (2020): 00024. http://dx.doi.org/10.1051/bioconf/20202400024.

Full text

Abstract:

Species composition, quantity participation and spreading of ornamental bushes in current system of Novosibirsk green areas are determined. Upper zone (“Verkhnyaya zona”) of Academgorodok is not taken into research as far as it is a cultural heritage site and a significant site of landscape architecture of the 20th century. Special attention is given to participation of lilac species and cultivars (Syringa vulgaris L., Syringa amurensis Rupr., Syringa josikaea J. Jacq. ex Rchb.). It is pointed out that 62 species of bushes are used in the city, including 3 species of lilac, however their quantity participation is not enough and does not satisfy regulatory limits. Twenty six cultivars from the collection Syringa vulgaris L. of the Central Siberian Botanical Garden SB RAS are recommended additionally. Three cultivars, ‘Nadezhda’, ‘Pamyat’ o S. M. Kirove’ and ‘Olimpiada Kolesnikova’, successfully tested in urban environment are highly recommended. Besides, it is recommended to use wider Syringa amurensis Rupr., and to introduce late-flowering Preston hybrids (Syringa x prestoniae Mc. Kelvey (S. reflexa x S. villosa)), curretly absent in green urban areas, in urban greening in Siberia.

APA, Harvard, Vancouver, ISO, and other styles

48

Pradhan, Samjhana, Hem Raj Paudel, Romi Maharjan, and Kavita Sharma. "Essential Oils from Six Aromatic Plants of Langtang National Park: Insights on Their Chemical Constituents via GC-MS Analysis." Separations 10, no. 1 (2023): 52. http://dx.doi.org/10.3390/separations10010052.

Full text

Abstract:

The present work aims to provide an insight on the chemical constituents of essential oils obtained from six aromatic plants of the Langtang National Park (LNP), Nepal. LNP harbors an enriched biodiversity of medicinal and aromatic plants (MAPs). The composition of essential oils obtained from Rhododendron anthopogon D. Don, Artemisia dubia Wall. ex Besser, Boenninghausenia albiflora (Hook.) Rchb. ex Meisn., Elsholtzia fruticosa (D. Don) Rehder, Juniperus recurva Buch.-Ham. ex D. Don and Rhododendron setosum D. Don, were analyzed by Gas Chromatography-Mass Spectrometry (GC-MS). The essential oils were extracted via the hydrodistillation method using the Clevenger apparatus. GC-MS analysis showed that E-caryophyllene, α-pinene, γ-terpinene, β-pinene and δ-cadinene in Rhododendron anthopogon; santolina-triene, β-cubebene and sabinene in Artemisia dubia; β-myrcene, β-cubebene, E-β-ocimene and bicyclogermacrene in Boenninghausenia albiflora; perillene, eucalyptol and β-pinene in Elsholtzia fruticosa; δ-3-carene, cadina-1(6),4-diene and δ-cadinene in Juniperus recurva; trans-sabinyl acetate, sabinene, α-elemol and germacrene D in Rhododendron setosum are the principal components. The major compounds in the essential oil were monoterpenes and sesquiterpenes, representing almost 80% to 90% of the total constituents of the essential oil. In comparison to the previous studies, the results showed a significant difference in the qualitative composition of the essential oil. This is also the first report on the study of chemical constituents from the essential oil of R. setosum. Despite hosting a plethora of MAPs, only a limited number of studies have been carried out to identify their chemical and biological properties. Hence, further investigations on the MAPs of the Langtang region are highly essential to identify the major chemical constituents and explore their biological activities.

APA, Harvard, Vancouver, ISO, and other styles

49

Giorgi, Annamaria, Moira Madeo, Johann Baumgärtner, and Giuseppe Carlo Lozzia. "Chemometric analysis of the secondary metabolite profile of Yarrow (Achillea collina Becker ex Rchb.) affected by phloem feeding Myzus persicae Sulzer aphids." Journal of Entomological and Acarological Research 42, no. 2 (2010): 91. http://dx.doi.org/10.4081/jear.2010.91.

Full text

Abstract:

Yarrow (Achillea collina Becker ex Rchb.) has a high content of secondary metabolites including phenolic acids. Among them, hydroxycinnamic acid such as chlorogenic acid and its derivatives were found to be the most abundant ones. The phloem feeding Myzus persicae Sulzer was hypothesized to affect the contents of secondary metabolites and change the metabolite profile. A high-performance liquid chromatography technique (HPLC) was used to evaluate whether there is a difference in the phenolic profile between aphid infested and non-infested yarrow leaves. M. persicae colonies composed of between 20 and 30 individuals were allowed to feed for 10 and 20 days. Preprocessing was carried out to standardize the procedures in order to obtain optimal separation of analytes, good chromatographic peak shape and robustness of the results. The methanol extracts of leaves were analyzed by means of HPLC, and the time series of peak areas obtained from each extract were evaluated through chemometric analyses. Results of the phenolic fingerprints showed a specific chromatographic profile with 58 peaks. An autoregression analysis demonstrated the absence of correlation. The discriminant analysis carried out with the data satisfying the assumption of the absence of collinearity showed a significant effect of phloem feeding on soluble phenolic compounds and identified two peaks that separate aphid infested from non-infested plants. The hydroxycinnamic acids widely found in A. collina leaves were not affected by M. persicae feeding. The results are the basis for the current studies aiming at the identification of chemical compounds that correspond to the peaks.

APA, Harvard, Vancouver, ISO, and other styles

50

Ambrožič-Dolinšek, Jana, Terezija Ciringer, and Mitja Kaligarič. "Micropropagation of the Narrow Endemic Hladnikia pastinacifolia (Apiaceae)." Acta Botanica Croatica 75, no. 2 (2016): 244–52. http://dx.doi.org/10.1515/botcro-2016-0028.

Full text

Abstract:

Abstract The monotypic Hladnikia pastinacifolia Rchb. is a narrow endemic species, with an extremely small distribution area in Slovenia, prone to any kind of threat that could lead to species extinction. Tissue culture techniques are proposed as a conservation measure for rapid propagation and ex-situ conservation. Tissue culture was initiated from seeds and juvenile plants obtained from natural sites on a solid Murashige and Skoog (MS) medium, with and without growth regulators. We tested various combinations and concentrations of growth regulators, and the best proliferation of axillary shoots, on average 14, was obtained on MS medium with 5 μM BAP and 3 μM IBA and 3% sucrose. Rooting was achieved after transferral of the shoots to an MS medium with 2 μM IBA and 3% sucrose. The rooted plants were acclimatized on a mixture of limestone sand, potting soil and vermiculite in a ratio of 10:2:2, with pH in the range of 7.5–8.0. In vitro propagation methods provide an important opportunity for the propagation and preservation of H. pastinacifolia by rapidly increasing the number of plants, without disturbing the wild population.

APA, Harvard, Vancouver, ISO, and other styles

Journal articles on the topic 'Ex Rchb'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles