Journal articles: 'Piper (Genus)'

1

Yuliana, Lia. "Studi Morfologi Genus Piper dan Variasinya." Biocaster : Jurnal Kajian Biologi 3, no. 1 (January 30, 2023): 11–19. http://dx.doi.org/10.36312/bjkb.v3i1.155.

Full text

Abstract:

The Piper genus is a member of the piperaceae family which is spread throughout the tropics and subtropics from the lowlands to the highlands, including Indonesia. Piper is an important spice and phytopharmaca plant that is used by the Indonesian people for their needs for spices and traditional medicine. This research was conducted with the aim of knowing the morphological variations of plants belonging to the genus Piper found in Banyumas, Purbalingga, and Banjarnegara regencies. A total of 30 individuals belonging to the genus Piper were observed using 39 morphological characters. The method used is a survey method with a purposive random sampling technique. The data obtained from morphological observations were analyzed descriptively to obtain morphological variations of members of the genus Piper. The results of research in Banyumas, Purbalingga and Banjarnegara regencies found 6 plants belonging to the Piper genus, namely red betel (Piper crocatum Ruiz & Pav.), green betel (Piper betle L.), yellow betel (Piper sp.), pepper (Piper nigrum L. .), cubeb (Piper cubeba L.f.), Javanese chili (Piper retrofractum Vahl). Variations in morphological characters of 6 plants belonging to the genus Piper were found in plant height, stem color, distance between internodes on the stem, leaf blade shape, leaf blade tip, leaf base. leaf color, color of the upper surface of the leaf, color of the lower surface of the leaf, length of the leaf blade, width of the leaf blade, texture of the upper and lower surface of the leaf, texture of the petiole, length of the petiole, color of the petiole, and aroma on the leaves.

APA, Harvard, Vancouver, ISO, and other styles

2

Parmar, Virinder S., Subhash C. Jain, Kirpal S. Bisht, Rajni Jain, Poonam Taneja, Amitabh Jha, Om D. Tyagi, et al. "Phytochemistry of the genus Piper." Phytochemistry 46, no. 4 (October 1997): 597–673. http://dx.doi.org/10.1016/s0031-9422(97)00328-2.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Almeida, Catia A., Mariana M. B. Azevedo, Francisco C. M. Chaves, Marcelo Roseo de Oliveira, Igor A. Rodrigues, Humberto R. Bizzo, Paola E. Gama, Daniela S. Alviano, and Celuta S. Alviano. "Piper Essential Oils Inhibit Rhizopus oryzae Growth, Biofilm Formation, and Rhizopuspepsin Activity." Canadian Journal of Infectious Diseases and Medical Microbiology 2018 (July 5, 2018): 1–7. http://dx.doi.org/10.1155/2018/5295619.

Full text

Abstract:

Piper is the largest genus of the Piperaceae family. The species of this genus have diverse biological activities and are used in pharmacopeia throughout the world. They are also used in folk medicine for treatment of many diseases in several countries including Brazil, China, India, Jamaica, and Mexico. In Brazil, Piper species are distributed throughout the national territory, making this genus a good candidate for biological activity screening. During our studies with Piper essential oils, we evaluated its activity against Rhizopus oryzae, the main agent of mucormycosis. The main compounds of seven Piper essential oils analyzed were Piper callosum—safrole (53.8%), P. aduncum—dillapiole (76.0%), P. hispidinervum—safrole (91.4%), P. marginatum—propiopiperone (13.2%), P. hispidum—γ-terpinene (30.9%), P. tuberculatum—(E)-caryophyllene (30.1%), and Piper sp.—linalool (14.6%). The minimum inhibitory concentration of Piper essential oils against R. oryzae ranged from 78.12 to >1250 μg/mL. The best result of total inhibition of biofilm formation was obtained with Piper sp. starting from 4.88 μg/mL. Considering the bioactive potential of EOs against planktonic cells and biofilm formation of R. oryzae could be of great interest for development of antimicrobials for therapeutic use in treatment of fungal infection.

APA, Harvard, Vancouver, ISO, and other styles

4

Bornstein, Allan J., and Felix G. Coe. "The Genus Piper (Piperaceae) in Honduras." Novon: A Journal for Botanical Nomenclature 17, no. 1 (March 2007): 11–19. http://dx.doi.org/10.3417/1055-3177(2007)17[11:tgppih]2.0.co;2.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

SARNAGLIA JUNIOR, VALDERES BENTO, JOELCIO FREITAS, and ELTON JOHN DE LIRIO. "Validation of the names Piper sugandhi and Piper sugandhi var. brevipilis (Piperaceae)." Phytotaxa 267, no. 2 (July 4, 2016): 157. http://dx.doi.org/10.11646/phytotaxa.267.2.9.

Full text

Abstract:

Piper Linnaeus (1753:28) is a Pantropical genus that comprises about 2000 species (Quijano-Abril et al. 2006). This genus is economically important because is widely used as spice, as P. nigrum Linnaeus (1753:28) (black pepper) and as a medicinal plant across the world. Babu et al. (1993) described a new species and a variety to the genus from Southern India: Piper sugandhi Ravindran, Babu & Naik (1993:27) and P. sugandhi var. brevipilis Ravindran, Babu & Naik (1993:27). The authors provided diagnosis for the new species and variety, and compared it with the related taxa. However, they have indicated two gatherings as holotypes (a male and a female specimen) and according to Arts. 8.1 and 40.1 of the ICN these two names are not validly published (McNeill et al. 2012).

APA, Harvard, Vancouver, ISO, and other styles

6

McKey, Doyle. "PIPER: Comparative Biology of a Hyperdiverse Genus." Ecology 86, no. 7 (July 2005): 1959–60. http://dx.doi.org/10.1890/0012-9658(2005)86[1959:pcboah]2.0.co;2.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

PARMAR, V. S., and ET AL ET AL. "ChemInform Abstract: Phytochemistry of the Genus Piper." ChemInform 29, no. 7 (June 24, 2010): no. http://dx.doi.org/10.1002/chin.199807285.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Christ, Jheniffer Abeldt, Valderes Bento Sarnaglia-Junior, Lucas Mesquita Barreto, Elsie Franklin Guimarães, Mário Luís Garbin, and Tatiana Tavares Carrijo. "The genus Piper (Piperaceae) in the Mata das Flores State Park, Espírito Santo, Brazil." Rodriguésia 67, no. 4 (December 2016): 1031–46. http://dx.doi.org/10.1590/2175-7860201667413.

Full text

Abstract:

Abstract The conservation and management of the Atlantic Forest depends upon reliable knowledge about how many and which species this biome shelters. Floristic inventories have an important role in this process, especially when conducted in poorly known remnants, with a high conservation priority. This paper presents the study of the genus Piper (Piperaceae) in the Mata das Flores State Park, Castelo municipality, Espírito Santo state (ES). The study was based on the analysis of dried specimens, as well as those observed in the field, from February 2012 to August 2015. Twenty species of piper were identified. Amongst these species, Piper dilatatum, P. macedoi and P. piliovarium were recorded for the first time for the Espírito Santo state. Piper bicorne, an endemic species from ES and known only for the Santa Leopoldina municipality, had its geographical distribution expanded to the Castelo municipality. Most of the Piper species in the MFSP occur in valleys, and they are commonly found near watercourses. This is worrying given that these areas are just the most affected by the expansion of the rural and urban areas that surround the Park.

APA, Harvard, Vancouver, ISO, and other styles

9

do Nascimento Marinho, Rosiane Ferreira, Bianca Roberta Peres Angrisani, Arthur Ladeira Macedo, Davyson de Lima Moreira, Carlos Magno Rocha Ribeiro, Thatyana Rocha Alves Vasconcelos, and Alessandra Leda Valverde. "1H and 13C NMR Spectral Data of Neolignans Isolated from Piper Species." Current Organic Chemistry 24, no. 14 (October 13, 2020): 1527–54. http://dx.doi.org/10.2174/1385272824999200608133542.

Full text

Abstract:

Plants of the genus Piper (Piperaceae) have a pantropical distribution. In Brazil, Piper species are used in traditional medicine to treat many diseases such as inflammation, diabetes, toothache, and fever. Many reports have shown a correlation between the biological activities of Piper species and neolignans, a secondary metabolite class obtained from the shikimic acid biosynthetic pathway. This review aims to provide detailed information on the structural identification of neolignans isolated from Piper species by 1H and 13C Nuclear Magnetic Resonance (NMR) spectroscopy. These searchable data enable rapid identification and routine analysis of neolignans from extracts of the Piper species.

APA, Harvard, Vancouver, ISO, and other styles

10

Wartono, M. Widyo, Ahmad Ainurofiq, and Maya Ismaniar. "KOMPOSISI KIMIA MINYAK ATSIRI BUAH SIRIH HIJAU (PIPER BETLE L), KEMUKUS (PIPER CUBEBA L) DAN CABE JAWA (PIPER RETROFRACTUM VAHL)." Molekul 9, no. 1 (May 1, 2014): 1. http://dx.doi.org/10.20884/1.jm.2014.9.1.143.

Full text

Abstract:

Tumbuhan genus Piper mempunyai kandungan minyak atsiri hampir disemua bagiannya, namun komposisi kimianya belum semua dilaporkan. Pada laporan ini kami melakukan isolasi dan identifikasi senyawa kimia minyak atsiri pada bagian buah tumbuhan Piper. Isolasi minyak atsiri buah Piper dilakukan dengan destilasi air menggunakan destilasi Stahl dan analisis komposisi kimia dengan kromatografi gas-spektroskopi masa (GC-MS). Kandungan minyak atsiri buah sirih hijau (Piper betle) 1,4% (v/b), cabe jawa (Piper retrofractum) 1% (v/b), dan buah kemukus (Piper cubeba) 1,7% (v/b). Hasil analisis GC-MS menunjukan kandungan utama minyak atsiri adalah senyawa golongan monoterpen, seskuiterpen dan fenil propanoid. Kandungan utama minyak atsiri buah sirih hijau (P. betle) adalah eugenol (12,36%), isokaryofillena (9,55%) dan β-selinena (8,09%), sedangkan komponen utama buah cabe jawa (Piper retrofractum) adalah isokaryofilen (8,88%), β-bisabolen (7,01%) dan zingiberen (6,32%), dan minyak atsiri buah kemukus (Piper cubeba) adalah spathulanol (27,05%), sativen (8,73%) dan germakren D (7,50%).

APA, Harvard, Vancouver, ISO, and other styles

11

MOUND, LAURENCE A. "Liothrips species (Thysanoptera, Phlaeothripinae) from leaf-galls on Piper species in Southeast Asia and Australia." Zootaxa 4830, no. 2 (August 13, 2020): 383–91. http://dx.doi.org/10.11646/zootaxa.4830.2.9.

Full text

Abstract:

Variation in colour and structure is re-considered amongst 19 species of Liothrips collected from leaf-galls on Piper vines in Asia. Gynaikothrips crassipes Karny, Liothrips aemulans Priesner, and Liothrips baccati Priesner are considered new synonyms of Liothrips chavicae (Zimmermann). Gynaikothrips karnyi Bagnall is considered a new synonym of Liothrips mirabilis (Schmutz). Gynaikothrips kuwanai Moulton and Liothrips reynvaanae Priesner are considered new synonyms of Liothrips pallipes (Karny). Doubts are expressed about the significance of several further described species, and an identification key is provided to nine putative species. Despite the number of Liothrips species described from Piper, there is little evidence of thrips radiation on this plant genus, and the two most common species of the genus on Piper are probably not closely related.

APA, Harvard, Vancouver, ISO, and other styles

12

PALCHETTI, Enrico, Stefano BIRICOLTI, Massimo GORI, Giulia ROTA NODARI, Nicola GANDOLFI, and Alessio PAPINI. "Two new Malagasy species of genus Piper L. (Piperaceae), Piper malgassicum and Piper tsarasotrae , and their phylogenetic position." TURKISH JOURNAL OF BOTANY 42, no. 5 (September 26, 2018): 610–22. http://dx.doi.org/10.3906/bot-1712-2.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

Tabopda, Turibio Kuiate, Anne-Claire Mitaine-Offer, Tomofumi Miyamoto, Chiaki Tanaka, Bonaventure Tchaleu Ngadjui, and Marie-Aleth Lacaille-Dubois. "Secondary Metabolites from Polar Fractions of Piper umbellatum." Natural Product Communications 7, no. 5 (May 2012): 1934578X1200700. http://dx.doi.org/10.1177/1934578x1200700511.

Full text

Abstract:

Seven known secondary metabolites were isolated from the methanol extract of the branches of Piper umbellatum. The identification of these compounds was mainly achieved by 2D NMR spectroscopic techniques and FAB-MS. Among them, the known cepharadiones A and B can be considered as chemotaxonomic markers of the genus Piper.

APA, Harvard, Vancouver, ISO, and other styles

14

OLIVERO V., Jesús T., Nerlis P. PÁJARO C., and Elena STASHENKO. "ANTIQUORUM SENSING ACTIVITY OF ESSENTIAL OILS ISOLATED FROM DIFFERENT SPECIES OF THE GENUS <I>PIPER</I>." Vitae 18, no. 1 (May 17, 2011): 77–82. http://dx.doi.org/10.17533/udea.vitae.8781.

Full text

Abstract:

Quorum sensing is a bacterial communication mechanism that depends on population density, and occurs through molecules called autoinducers. These molecules activate receptors, enabling the transcription of genes that encode information needed to control several biochemical mechanisms associated with bacterial survival and pathogenicity. The aim of this study is to evaluate the inhibitory effect of essential oils of three species of Piper on the production of violacein, induced by N-hexanoyl homoserine lactone in Chromobacterium violaceum CV026. Results show that essential oils from Piper bredemeyeri, Piper brachypodom and Piper bogotence present 50% inhibitory concentration (IC50) for quorum sensing of 45.6 µg/mL, 93.1 µg/mL, and 513.8 µg/mL, respectively. However, in terms of cell growth, IC50 values for these oils are greater than 1000 µg/mL. These data suggest that essential oils isolated from Piper species found in Colombian flora are good candidates for the development of antiquorum sensing molecules, with possible applications in the control of bacterial diseases.

APA, Harvard, Vancouver, ISO, and other styles

15

Mariani, Ria, Farid Perdana, and Revi Widiana. "Aktivitas Antioksidan Ekstrak Daun, Bunga, dan Tangkai Sirih Hutan (Piper aduncum L.)." JFIOnline | Print ISSN 1412-1107 | e-ISSN 2355-696X 15, no. 1 (January 20, 2023): 67–71. http://dx.doi.org/10.35617/jfionline.v15i1.94.

Full text

Abstract:

Abstrak: Sirih Hutan (Piper aduncum L.) termasuk tumbuhan genus Piper. Penelitian antioksidan berbagai genus Piper telah banyak dilakukan seperti Piper crocatum dan Piper betle, namun penelitian antioksidan pada sirih hutan masih sangat terbatas. Antioksidan alami dapat dimanfaatkan untuk meredam radikal bebas dalam upaya mencegah penyakit degeneratif. Penelitian ini bertujuan untuk mengetahui aktivitas antioksidan pada bunga, daun dan tangkai sirih hutan serta kelompok senyawa yang bertanggung jawab terhadap aktivitas antioksidan tersebut. Aktivitas antioksidan diuji menggunakan metode DPPH (2,2 difenil-1-pikrilhidrazil) dengan spektrofotometri UV-Vis dan kromatografi lapis tipis (KLT). Hasil penelitian menunjukkan bahwa uji aktivitas antioksidan menggunakan spektrofotometri UV-Vis, pada ekstrak daun sirih hutan memiliki nilai IC50 47,252 μg/ml, pada ekstrak bunga sirih hutan dengan nilai IC50 49,756 μg/m, dan pada ekstrak tangkai sirih hutan dengan nilai IC50 48,674 μg/ml. Sedangkan vitamin C sebagai pembanding memiliki nilai IC50 5,223 μg/ml. Dari hasil KLT, senyawa yang diduga memberikan aktivitas antioksidan pada ekstrak bunga dan tangkai adalah senyawa flavonoid karena memiliki nilai Rf yang sama yaitu 0,35;0,53;0,66 pada hasil plat yang telah disemprot DPPH dan sitroborat. Ekstrak daun, bunga dan tangkai sirih hutan memiliki aktivitas antioksidan dengan IC50 berturut-turut 47,252; 49,756 dan 48,674 μg/ml serta diduga adanya senyawa flavonoid yang bertanggung jawab terhadap aktivitas antioksidan ekstrak bunga dan tangkai.

APA, Harvard, Vancouver, ISO, and other styles

16

Xiang, Cai-Peng, Yan-Ni Shi, Fang-Fang Liu, Hai-Zhou Li, Ying-Jun Zhang, Chong-Ren Yang, and Min Xu. "A Survey of the Chemical Compounds of Piper spp. (Piperaceae) and Their Biological Activities." Natural Product Communications 11, no. 9 (September 2016): 1934578X1601100. http://dx.doi.org/10.1177/1934578x1601100948.

Full text

Abstract:

The genus Piper is one of the largest genera in the Piperaceae, with most species widely distributed globally, covering all continents. To date, many Piper species have been scientifically investigated for their chemical diversities and interesting broad spectrum of bioactivities, including central nervous system (CNS), pesticidal, antifungal and antibacterial effects. This review systematically summarizes the scaffolds of the alkaloids reported, the major chemicals isolated from Piper spp., and their biological activities. Besides the alkaloids, some neolignans with rearranged skeletons show structural diversities, while the chalcones, flavonoids and kava-pyrones have some potential activities. Herein, the sesquiterpenes and phenolic compounds from Piper species and their bioactivities are also surveyed.

APA, Harvard, Vancouver, ISO, and other styles

17

Delgado-Salinas, Alfonso, Enrique Martínez-Hernández, and Pilar Fernández-Ortuño. "Estudio del polen de Phaseolus chiapasanus Piper (Leguminosae: Phaseolinae)." Botanical Sciences, no. 43 (March 31, 2017): 25. http://dx.doi.org/10.17129/botsci.1265.

Full text

Abstract:

In the course of a taxonomical revision of the genus Phaseolus and considering the recently important research realized in the Phaseolus-Vigna complex, where the palynological attributes for the genus were precised, the present paper describes the pollen of Phaseolus chiapasanus Piper. The large-size class pollen grains of Ph. chiapasanus are tricolporate, brevicolpate, pseudo-operculate; semitectate, and widely reticulate. The structure of the infratectum could be considered of the granular-collumelar type. Some of the attributes found in the polen of Ph. Chiapasanus were not known for the genus, though such attributes are commonly found in the subgenus Sigmoidotropis of the genus Vigna. Ph. chiapasanus shows a series of morphological and palynological differences that open the possibility for the creation of a new section within the genus. More detailed studies will definitely by needed to better document relationships to other species of the genus.

APA, Harvard, Vancouver, ISO, and other styles

18

MUKHERJEE, PRASANTA KUMAR. "Nomenclatural notes on Piper Linn. (Piperaceae) from India." Phytotaxa 289, no. 2 (December 22, 2016): 188. http://dx.doi.org/10.11646/phytotaxa.289.2.9.

Full text

Abstract:

More than a century ago, the comprehensive account of the Piperaceae in the Flora of British India by Hooker (1886) listed 45 species of Piper (including Pothomorphe) and ten species of Peperomia from India, Bangladesh, Myanmar, Nepal, Philippines, Sri Lanka as well as the Indonesian islands Java and Sumatra. The genus Piper was treated under six sections, wherein he listed 28 species from present day India. Several years later, C. de Candolle (1923) recognized 95 species of Piper and eight of Peperomia from India, including 41 species of Piper that were new, although they were not described fully until 1925. A number of new species and varieties were also added by Van Heurck & Müller Argoviensis (1871), C. de Candolle (1910, 1912), Gamble (1924), Ravindran et al. (1987), Babu et al. (1993), Gajurel et al. (2001 a & b, 2007), Lekhak et al. (2012), and Mathew et al. (2016). In the meantime, some regional accounts of the genus Piper were also published, including Rahiman & Nair (1987) from Karnataka, Gajurel et al. (2002, 2008) from Arunachal Pradesh, and Das et al. (2010) from Terai Duars, Darjeeling, and Sikkim. Long (1984) published an account of Piperaceae from Bhutan that included records from Sikkim, wherein he suggested some new synonyms. A critical examination of these publications points to their limitations concerning some of the identities and nomenclature.

APA, Harvard, Vancouver, ISO, and other styles

19

Luca, Simon Vlad, Katarzyna Gaweł-Bęben, Marcelina Strzępek-Gomółka, Karolina Czech, Adriana Trifan, Gokhan Zengin, Izabela Korona-Glowniak, Mirjana Minceva, Jürg Gertsch, and Krystyna Skalicka-Woźniak. "Insights into the Phytochemical and Multifunctional Biological Profile of Spices from the Genus Piper." Antioxidants 10, no. 10 (October 19, 2021): 1642. http://dx.doi.org/10.3390/antiox10101642.

Full text

Abstract:

Piper spices represent an inexhaustible reservoir of bioactive compounds that may act as drug leads in natural product research. The aim of this study was to investigate a series of methanolic fruit extracts obtained from P. nigrum (black, green, white and red), P. longum and P. retrofractum in comparative phytochemical and multi-directional biological (antimicrobial, antioxidant, anti-enzymatic and anti-melanogenic) assays. The metabolite profiling revealed the presence of 17 piperamides, with a total content of 247.75–591.42 mg piperine equivalents/g. Among the 22 tested microorganism strains, Piper spices were significantly active (MIC < 0.1 mg/mL) against the anaerobes Actinomyces israelii and Fusobacterium nucleatum. The antioxidant and anti-enzymatic activities were evidenced in DPPH (10.64–82.44 mg TE/g) and ABTS (14.20–77.60 mg TE/g) radical scavenging, CUPRAC (39.94–140.52 mg TE/g), FRAP (16.05–77.00 mg TE/g), chelating (0–34.80 mg EDTAE/g), anti-acetylcholinesterase (0–2.27 mg GALAE/g), anti-butyrylcholinesterase (0.60–3.11 mg GALAE/g), anti-amylase (0.62–1.11 mmol ACAE/g) and anti-glucosidase (0–1.22 mmol ACAE/g) assays. Several Piper extracts (10 μg/mL) inhibited both melanin synthesis (to 32.05–60.65% of αMSH+ cells) and release (38.06–45.78% of αMSH+ cells) in αMSH-stimulated B16F10 cells, partly explained by their tyrosinase inhibitory properties. Our study uncovers differences between Piper spices and sheds light on their potential use as nutraceuticals or cosmeceuticals for the management of different diseases linked to bacterial infections, Alzheimer’s dementia, type 2 diabetes mellitus or hyperpigmentation.

APA, Harvard, Vancouver, ISO, and other styles

20

Noronha, Aloyséia C. S., Ilmarina C. Menezes, Júlia J. Ferla, Regiane C. Vieira, Leonardo S. Duarte, and Jeferson L. C. Mineiro. "Tetranychus marianae McGregor, 1950 (Acari: Tetranychidae) in Piper (Piperaceae) species in the state of Pará, Brazil." Entomological Communications 3 (December 6, 2021): ec03034. http://dx.doi.org/10.37486/2675-1305.ec03034.

Full text

Abstract:

This study reports the occurrence of the phytophagous mite Tetranychus marianae McGregor, 1950 (Tetranychidae), in species of the genus Piper (P. hispidum Sw., P. marginatum Jacq., P. montealegreanum Yunk., P. peltatum L., P. reticulatum L., and P. tuberculatum Jacq.) (Piperaceae) and the predator mite Amblyseius tamatavensis Blommers, 1974 (Phytoseiidae), in species and cultivars of Piper nigrum L., from the Piperaceae collection of Embrapa Amazônia Oriental in Belém, Pará.

APA, Harvard, Vancouver, ISO, and other styles

21

HAO, CHAO-YUN, BAO-DUO WU, XIAO-WEI QIN, GANG WU, HAI-YAN DENG, and YUN-HONG TAN. "Morphological and molecular evidence for a new species from China: Piper semi-transparens (Piperaceae)." Phytotaxa 429, no. 3 (January 21, 2020): 191–99. http://dx.doi.org/10.11646/phytotaxa.429.3.1.

Full text

Abstract:

We conducted morphological and molecular analyses to describe a new species of Piperaceae, Piper semi-transparens, which was observed in Hainan, Guangdong and Guangxi Provinces, China. Detailed morphological comparisons between the newly discovered species and other members of Piper indicate that Piper semi-transparens is similar to P. bonii and P. bonii var. macrophyllum, from which it differs in having glabrous leaf blades; stem densely short and unbranched pubescent when young, glabrous when mature; veins 5(–7); stamens 2; stigmas 3, rarely 4; spikes color white when mature; floral bracts glabrous; pericarp white and semi-transparent. Molecular analyses based on the ITS marker of nuclear ribosomal DNA strongly support that P. semi-transparens is a new species in the genus Piper, most closely related to P. bonii and P. bonii var. macrophyllum.

APA, Harvard, Vancouver, ISO, and other styles

22

Gajurel, P. R., and H. K. Lua. "Flora of Singapore precursors, 20: Notes on the genus Piper (Piperaceae) from Singapore." Gardens Bulletin Singapore 72, no. 2 (December 15, 2020): 135–41. http://dx.doi.org/10.26492/gbs72(2).2020-02.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

LEAVENGOOD, JOHN M. JR, MORGAN G. PINKERTON, and JACQUES RIFKIND. "Description of the new genus Tarsobaenus and three new species from Costa Rica (Coleoptera: Cleridae: Clerinae: Hydnocerini)." Zootaxa 5138, no. 2 (May 17, 2022): 167–76. http://dx.doi.org/10.11646/zootaxa.5138.2.4.

Full text

Abstract:

The new genus Tarsobaenus and three new species—Tarsobaenus letourneauae, T. piper and T. hansoni—are described from Costa Rica. Tarsobaenus is distinguished by the broad, subulate form of the plical excavation along the elytral suture, the lower margin of which is modified into a broad flattened flange; serrulate apical elytral margins; and the conspicuously large, shiny body. Two of the species are associates of Piper plants and their pharaoh ant symbionts. We provide a key to the three species of Tarsobaenus.

APA, Harvard, Vancouver, ISO, and other styles

24

SOPIALENA, SOPIALENA, SUYADI SUYADI, MUHAMAD SAHIL, and JULI NURDIANA. "The diversity of endophytic fungi associated with Piper nigrum in the tropical areas: A recent study from Kutai Kartanegara, Indonesia." Biodiversitas Journal of Biological Diversity 19, no. 6 (October 9, 2018): 2028–34. http://dx.doi.org/10.13057/biodiv/d190607.

Full text

Abstract:

Sopialena, Suyadi, Sahil M, Nurdiana J. 2018. The diversity of endophytic fungi associated with Piper nigrum in the tropical areas: a recent study from Kutai Kartanegara, Indonesia. Biodiversitas 19: 2028-2034. This research aimed to identify the diversity of endophytes fungal in the root and leaves of Piper nigrum Linn. This research contributes to the knowledge gaps by focusing the discussion on the Endophytic fungal communities of Piper nigrum Linn in tropical areas at Kutai Kartanegara, Indonesia. Two certain plots within the study area were selected based on the different characteristics of topographic contours. The locations, named Plot A was characterized by ramps area, while plot B was sloping or hilly area. A total of 55 isolates were obtained from the root and the leaves of healthy plants, 35 isolates were from Plot A and the other 20 isolates were from plot B. Based on Shannon index (H’), both of the plots corresponded to the same genus; namely Aspergillus sp., Fusarium sp., Nigrospora sp., and Trichoderma sp, and categorized as medium diversity. In this regards, this study confirms that the genus Aspergillus sp. and Fusarium sp. represent a large part of the diversity of Endophytes fungi. As the study indicates that plot B has higher diversity of endophytic fungi compared to plot A, it shows that the hilly area turns out to be a better location for Piper nigrum Linn.

APA, Harvard, Vancouver, ISO, and other styles

25

MUKHERJEE, PRASANTA KUMAR. "Nomenclatural notes on Piper (Piperaceae) from India III." Phytotaxa 441, no. 3 (May 5, 2020): 263–73. http://dx.doi.org/10.11646/phytotaxa.441.3.3.

Full text

Abstract:

This paper, in continuation of earlier ones (Mukherjee 2017, 2018), deals with the taxonomic studies of the genus Piper Linnaeus (Piperaceae) from India. It includes information on the identity, typification and nomenclature of ten additional species. The results report four new names: Piper courtallensis P. K. Mukh. nom. nov., Piper kurgianum P. K. Mukh. nom.nov, Piper lamarckianum P. K. Mukh. nom. nov., and Piper travancorianum P. K. Mukh. nom. nov. It also deals with the lectotypification and nomenclature of P. argyrophyllum Miquel, P. attenuatum Miquel and P. talbotii C. de Candolle in addition to supersession of previous lectotypification with new ones for P. leptostachyum Miquel and P. peepuloides Roxburgh. Additionally, new synonyms are added for P. obtusistigmum C.de Candolle and P. talbotii C. de Candolle. Identities of P. peepuloides Roxburgh, P. mullesua Don and P. rhytidocarpum J. D. Hooker as distinct species are reasserted. An overall evaluation of their identity and nomenclature including synonyms is included. Necessary explanatory notes are added for each of the species which are dealt alphabetically.

APA, Harvard, Vancouver, ISO, and other styles

26

Sen, Sandeep, Selvadurai Dayanandan, Thomson Davis, Rengaian Ganesan, M. R. Jagadish, P. J. Mathew, and Gudasalamani Ravikanth. "Origin and evolution of the genus Piper in Peninsular India." Molecular Phylogenetics and Evolution 138 (September 2019): 102–13. http://dx.doi.org/10.1016/j.ympev.2019.05.033.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Chaveerach, Arunrat, Piya Mokkamul, Runglawan Sudmoon, and Tawatchai Tanee. "Ethnobotany of the Genus Piper (Piperaceae) in Thailand." Ethnobotany Research and Applications 4 (December 31, 2006): 223. http://dx.doi.org/10.17348/era.4.0.223-231.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

Kikuchi, David W., Eloisa Lasso, James W. Dalling, and Nadav Nur. "Pollinators and pollen dispersal of Piper dilatatum (Piperaceae) on Barro Colorado Island, Panama." Journal of Tropical Ecology 23, no. 5 (August 16, 2007): 603–6. http://dx.doi.org/10.1017/s0266467407004397.

Full text

Abstract:

The genus Piper is an important component of tropical forests worldwide. Many Piper species have been reported as self-compatible (Figueiredo & Sazima 2000), and many have the ability to reproduce asexually, forming clonal aggregations (Grieg 1993). Furthermore, the main dispersers of Piper (bats) transport whole infructescences to feeding roosts (Fleming & Heithaus 1981), tending to disperse closely related seeds in clumps. These characteristics of Piper biology are likely to result in populations with strongly marked spatial genetic structure, and raise the potential for inbreeding depression through self-fertilization. A few studies using allozymes to evaluate spatial genetic structure in Piper spp. support this view. These studies indicate that populations separated by more than 1 km are genetically distinct (high FST values; Wright 1943) and that for some species inbreeding could be substantial (high values of FIS and FIT; Heywood & Fleming 1986, Mariot et al. 2002). However, the contributions of limited pollen and seed dispersal to generating spatial genetic structure remain unknown. Estimates of seed dispersal probabilities by Carollia perspicillata (Phyllostomidae) bats on Barro Colorado Island (BCI), Panama, and at Santa Rosa, Costa Rica, indicate that Piper dispersers move most seeds 50–300 m from the parent plant, with occasional long-distance events of > 1 km (Fleming 1981, Thies 1998). However, no studies have assessed how far Piper flower visitors move pollen. If seed dispersal is limited, and clonal reproduction is common, then long-distance pollen transfer may play a critical role in preventing inbreeding depression in Piper populations.

APA, Harvard, Vancouver, ISO, and other styles

29

de Queiroz, George Azevedo, Elsie Franklin Guimarães, and Cassia Monica Sakuragui. "First record of Piper robustipedunculum Yunck. (Piperaceae) in the state of Pernambuco, Brazil." Check List 16, no. 5 (September 11, 2020): 1149–52. http://dx.doi.org/10.15560/16.5.1149.

Full text

Abstract:

Piper L. is the largest genus of Piperaceae with about 2,000 species worldwide. Brazil is home to 466 of these species. They are found mainly in the Atlantic and Amazonian forests. This is the first record of Piper robustipedunculum Yunck in the state of Pernambuco, a species which was previously considered restricted to the state of Bahia. We consulted the herbaria CEN, HAMAB, HEPH, IBGE, IPA, MAC, R, RB, RFFP, UB, UFP, UFMT, UPCB and the virtual speciesLink and Reflora databases. Additionally, we elaborated a description and a distribution map to the species.

APA, Harvard, Vancouver, ISO, and other styles

30

Maynard, Lauren D., Ariana Ananda, Maria Fernanda Sides, Hannah Burk, and Susan R. Whitehead. "Dietary resource overlap among three species of frugivorous bat in Costa Rica." Journal of Tropical Ecology 35, no. 4 (May 3, 2019): 165–72. http://dx.doi.org/10.1017/s0266467419000129.

Full text

Abstract:

AbstractThe maintenance of biodiversity in tropical forests is thought to be dependent on fine-scale mechanisms of niche partitioning that allow species to coexist. This study examined whether three species of short-tailed fruit bat that co-occur at a lowland tropical forest site in Costa Rica (Carollia castanea, C. perspicillata, C. sowelli) avoid inter- and intraspecific competition through dietary specialization on species in the genus Piper. First, dietary composition was examined using faecal samples (N = 210), which yielded three main findings: (1) bat species and sexes vary in overall reliance on fruits of Piper, with a higher percentage of seeds of Piper detected in the diets of C. castanea (98.2%) and females (91.5%); (2) adults and juveniles partition species of Piper by habitat, with a lower percentage of mid- to late-successional species of Piper detected in adults (20.8%); and (3) overall, there is a strong dietary overlap among and within the three species of Carollia. Second, controlled choice experiments were conducted with individual bats (N = 123) to examine preferences for different species of Piper. These results indicated few differences in Piper preference based on bat species, sex, age class or reproductive status, suggesting preference is not the primary mechanism shaping the observed differences in dietary composition. Overall, the dietary composition and preference similarities suggest there is strong competition both among and within the three species of Carollia for food resources.

APA, Harvard, Vancouver, ISO, and other styles

31

Voigt, Christian C., Silke L. Voigt-Heucke, and Antje S. Kretzschmar. "Isotopic evidence for seed transfer from successional areas into forests by short-tailed fruit bats (Carollia spp.; Phyllostomidae)." Journal of Tropical Ecology 28, no. 2 (February 13, 2012): 181–86. http://dx.doi.org/10.1017/s0266467411000666.

Full text

Abstract:

Abstract:Neotropical fruit-eating bats play a crucial role in forest regeneration by dispersing seeds of pioneer plants from forests into deforested areas. However, later in succession bats may carry seeds in both directions. We used an isotopic approach to reveal the direction of seed transfer mediated by three co-existing short-tailed fruit bats (Carollia castanea, C. sowelli and C. perspicillata) between a forest and an adjacent mid-successional site (>15 y since deforestation); two habitats where individuals of the genus Piper differed in stable carbon isotope ratios by ~2.5‰. In a feeding experiment, we confirmed that δ13C of seeds is not altered by digestive processes. We then collected seeds defecated by bats of the genus Carollia and found that δ13C of these seeds is higher than those of Piper individuals growing in the forest, irrespective of whether bats were captured in or outside the forest. We conclude that bats of the genus Carollia were more likely to carry seeds from successional areas into the forest than in the opposite direction.

APA, Harvard, Vancouver, ISO, and other styles

32

Priyono, Sumarnie Hasto. "PERBANYAKAN VEGETATIF SECARA CANGKOK PIPER MINIATUM BL." Jurnal Teknologi Lingkungan 11, no. 1 (December 1, 2016): 53. http://dx.doi.org/10.29122/jtl.v11i1.1222.

Full text

Abstract:

Ninety percent from approximately 1200 plant species belonged to Piper genus(Piperaceae) have not been explorated their phytochemical potency and biological activities. Piper miniatum has beeing used traditionally in Papua as spices and tonic. However, the propagation effort has never been done yet so its population in nature is decresed gradually. Therefore, simple propagation is conducted that can be adopted by the local people in order to cultivate as well as to explore its potency as antibacterial agent. The propagation experiment was carried out using air layering method with variable treatment of internode maturity ( R1, R2, R3 ), growth medium (Selaginela sp.,Asplenium nidus root, compost) with completely randomized design with 10 replications.Air layering media using Asplenium nidus root of 18 weeks gave the best respon.Key words: Piper miniatum, Air layering.

APA, Harvard, Vancouver, ISO, and other styles

33

M. N. H. W. Salleh, W., M. A. Nafiah, K. H. Yen, H. Kassim, and A. Tawang. "Chemical constituents and acetylcholinesterase inhibitory activity of Piper abbreviatum Opiz." Bulletin of the Chemical Society of Ethiopia 34, no. 3 (January 12, 2021): 625–32. http://dx.doi.org/10.4314/bcse.v34i3.17.

Full text

Abstract:

Plants of the genus Piper have long been used as medicinal herbs. The chemistry of Piper species has been widely investigated and phytochemical investigations conducted in all parts of the world have led to the isolation of a number of physiologically active compounds. Thus, this study was carried out to investigate the phytochemicals from Piper abbreviatum and their acetylcholinesterase inhibitory activity, which has not been previously investigated. Fractionation and purification of the aerial parts of P. abbreviatum led to the isolation and identification of five methoxylated flavonoids, namely 5,7-dimethoxyflavone, 4ʹ,5,7-trimethoxyflavone, 3',4',5,7-tetramethoxyflavone, 5-hydroxy-7-methoxyflavone, 5-hydroxy-4ʹ,7-dimethoxyflavone, together with lupeol, lupenone, β-sitosterol, and β-sitostenone. The structures of these compounds were obtained by analysis of their spectroscopic data, as well as the comparison with that of reported data. Acetylcholinesterase inhibitory activity revealed that all isolated flavones were found to inhibit AChE with percentage inhibition values ranged from 24.2 to 58.2%. This is the first report on the isolation of methoxylated flavonoid from P. abbreviatum. The high variants of flavonoid compounds from this species may be used as chemotaxonomic markers for this Piper species. KEY WORDS: Piperaceae, Piper, Piper abbreviatum, Flavonoid, Acetylcholinesterase Bull. Chem. Soc. Ethiop. 2020, 34(3), 625-632. DOI: https://dx.doi.org/10.4314/bcse.v34i3.17

APA, Harvard, Vancouver, ISO, and other styles

34

HAO, CHAO-YUN, XIAO-WEI QIN, LE-HE TAN, LI-SONG HU, GANG WU, SHUI-XING LUO, HAI-YAN DENG, and YUN-HONG TAN. "Piper jianfenglingense, a new species of Piperaceae from Hainan Island, China." Phytotaxa 331, no. 1 (December 8, 2017): 109. http://dx.doi.org/10.11646/phytotaxa.331.1.9.

Full text

Abstract:

Piper jianfenglingense, which was collected in the Jianfengling National Natural Reserve, Hainan Island, China, is described and illustrated herein. Morphologically it is similar to P. mutabile, from which it differs in having sparsely pubescent petioles, vaginate at base only; rachises glabrous; floral bracts adnate to rachis, margin partially hidden; stamens 2, with considerably longer filaments, these caducous when anthers mature; stigmas ovoid, apex acute; berries and seeds ellipsoid. Molecular analyses based on the ITS marker of nuclear ribosomal DNA strongly support P. jianfenglingense as a new species in the genus Piper, most closely related to P. macropodum.

APA, Harvard, Vancouver, ISO, and other styles

35

Widiyastuti, Yuli, Sari Haryanti, and Dyah Subositi. "Karakterisasi Morfologi dan Kandungan Minyak Atsiri Beberapa Jenis Sirih (Piper sp.)." Proceeding of Mulawarman Pharmaceuticals Conferences 3 (April 26, 2016): 474–81. http://dx.doi.org/10.25026/mpc.v3i2.148.

Full text

Abstract:

Piper merupakan salah satu marga dalam famili Piperaceae yang meliputi lebih dari seribu jenis tumbuhan yang tersebar di daerah tropis dan sub tropis. Sirih (Piper betle L.) adalah salah satu spesies dalam genus Piper yang sangat dikenal masyarakat, karena tidak hanya dimanfaatkan sebagai herbal namun juga memiliki nilai penting dalam kultur atau budaya masyarakat. Berdasarkan bentuk dan warna daun, rasa dan aroma, dikenal beberapa jenis sirih antara lain sirih cacing, sirih Jawa, sirih gading, sirih banda, dan sirih cengkih. Untuk itu dilakukan penelitian karakterisasi morfologi dan kandungan minyak atsiri beberapa jenis sirih yang berasal dari beberapa daerah. Penelitian dilakukan secara eksploratif dengan mengambil spesimen beberapa jenis sirih, kemudian dilakukan karakterisasi morfologi di Laboratorium Sistematika Tumbuhan. Analisis minyak atsiri dilakukan secara stahl destilasi dan identifikasi kandungan minyak atsiri secara Kromatografi Lapis Tipis menggunakan fase diam Silikagel G dan fase bergerak toluene:etyl acetat: 93:7, visualisasi menggunakan vanillin asam sulfat. Hasil penelitian menunjukkan bahwa terdapat beberapa jenis sirih yang dikenal dengan nama daerah sirih gading, sirih cacing, dan sirih hijau dengan nama botani Piper betle L., serta sirih merah dengan nama botani Piper crocatum L. atau Piper ornatum L. Perbedaan morfologi yang paling menonjol ada pada bentuk daun, tekstur daun, warna batang, warna tangkai daun, habitus, dan aroma. Kadar minyak atsiri masing-masing jenis sirih berturut turut: sirih hijau (0,6 %), sirih cacing (0,3%), sirih gading (0,3%), dan sirih merah (0,6%). Profil KLT dari minyak atsiri masing-masing jenis sirih menunjukkan perbedaan dalam jumlah spot maupun warna spot.

APA, Harvard, Vancouver, ISO, and other styles

36

Cai, Cheng-Cheng, Ma-Cheng Yan, Hui Xie, and Sheng-Li Pan. "Simultaneous Determination of Ten Active Components in 12 Chinese Piper Species by HPLC." American Journal of Chinese Medicine 39, no. 05 (January 2011): 1043–60. http://dx.doi.org/10.1142/s0192415x11009391.

Full text

Abstract:

Piper is a genus that is recently valued for the treatment of central nervous system diseases. The major constituents, amides and lignans, are responsible for the antinociceptive and antidepressant activities. This study developed a RP-HPLC-UV method for the simultaneous determination of eight amides and two lignans in twelve different species of Piper. HPLC separation was accomplished on a C18 analytical column (5 μm, 250 mm × 4.6 mm, i.d.) with a gradient mobile phase consisting of acetonitrile and water at a flow rate of 1.0 ml/min. All the calibration curves showed good linear correlation coefficients (r > 0.9997) over the test ranges. The relative standard deviation of the current method was less than 2.90% for intra- and inter-day assays and the average recoveries were between 98.25% and 103.08%. The HPLC method established is appropriate for quality control purposes and allows for the differentiation of Piper species.

APA, Harvard, Vancouver, ISO, and other styles

37

Jaramillo, M. Alejandra, and Paul S. Manos. "Phylogeny and patterns of floral diversity in the genus Piper (Piperaceae)." American Journal of Botany 88, no. 4 (April 2001): 706–16. http://dx.doi.org/10.2307/2657072.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Oliveira, Brenda Letícia Pereira, João Pedro Souza-Alves, and Marcela Alvares Oliveira. "Potential self-medication by brown titi monkeys, <i>Plecturocebus brunneus</i>, in an urban fragment forest in the Brazilian Amazon." Primate Biology 7, no. 2 (December 15, 2020): 35–39. http://dx.doi.org/10.5194/pb-7-35-2020.

Full text

Abstract:

Abstract. In this study, we report fur-rubbing behavior of brown titi monkeys, Plecturocebus brunneus, using chewed leaves from (Fabaceae) and Piper tuberculatum (Piperaceae). These reports were obtained during systematic monitoring of titi monkeys from May until December 2019 (218 h) in an urban fragment forest in the Brazilian Amazon. Both plant species contain chemical substances in their leaves that potentially repel ectoparasites. The genus Piper is known for its repelling action due to the presence of amides, alkaloids and benzoic acid. The presence of dogs, cats and human settlements may contribute to an increase of ectoparasites, making a potential self-medication function of fur rubbing in this primate species plausible.

APA, Harvard, Vancouver, ISO, and other styles

39

Marinho-Filho, Jader S. "The coexistence of two frugivorous bat species and the phenology of their food plants in Brazil." Journal of Tropical Ecology 7, no. 1 (February 1991): 59–67. http://dx.doi.org/10.1017/s0266467400005083.

Full text

Abstract:

ABSTRACTCarollia perspicillata and Sturnira lilium are two species of abundant and widely distributed phyllostomid bats. Both are frugivorous and frequently found coexisting in the same areas. A study on feeding habits and morphology of C. perspicillata and S. lilium was conducted at Serra do Japi, Sấo Paulo, south-eastern Brazil, investigating the mechanisms associated with their coexistence. The two species are fairly similar in morphology and feeding habits. Analysis of faeces produced by captured bats revealed that there is a significant difference in diet between the two species. C. perspicillata tends to specialize in fruits of the genus Piper and S. lilium specializes in Solarium fruits. The fruiting periods of the four species of Piper eaten by bats at the study site are successive, with little overlap and high productivity. The species of Solarium have long and overlapping fruiting periods, with very low productivity. Piper and Solarium provide food resources almost all year, allowing the food specialization that may be an important mechanism of resource partitioning between C. perspicillata and S. lilium.

APA, Harvard, Vancouver, ISO, and other styles

40

Mosquera, Oscar M., Roman Y. Ramirez-Rueda, and Aura M. Blandon. "Antimicrobial activity of seven Piper species from Colombian coffee-growing Eco-region against multidrug resistant bacteria." Medicinal Plant Communications 3, no. 3 (2020): 33–37. http://dx.doi.org/10.37360/mpc.20.3.3.8.

Full text

Abstract:

Species of Piper genus are known for their numerous biological activities and their diverse phytochemical composition. The object of this work was to evaluate the antibacterial activity of extracts obtained from seven Piperaceae species. Broth microdilution technique was used for biological evaluation and some phytochemical nuclei present in the bioactive extracts were identified by thin layer chromatography and characterization reactions. Among the most important results, it is highlighted the inhibitory effect of the methanolic extract from Piper pesaresanum against Methicillin-resistant Staphylococcus aureus ATTC 43300, with minimum inhibitory concentration of 62.5 μg/mL. Additionally, secondary metabolites such as alkaloids, phenols and flavonoids were detected in this extract. In conclussion, the species P. pesaresanum showed high potential for bioguided search of antibacterial compounds against multidrug resistant S. aureus.

APA, Harvard, Vancouver, ISO, and other styles

41

MUKHERJEE, PRASANTA KUMAR. "Nomenclatural notes on Piper Linn. (Piperaceae) from India II." Phytotaxa 338, no. 1 (February 9, 2018): 17. http://dx.doi.org/10.11646/phytotaxa.338.1.2.

Full text

Abstract:

In continuation of the taxonomic study of the genus Piper from India (Mukherjee, 2017), eighty-four Piper names, reported from India, are considered here for their typification, identity, and nomenclature. The scrutiny led to the recognition of twenty-four species. Thirty-five synonyms are proposed as new ones out of sixty-one treated here. Lectotypes are designated for almost all the species recognised here together with their synonyms or basionyms. Holotypes are mentioned when applicable. Of particular mention are P. hookeri and P. sylvaticum with confused identities and lacking proper typification. Corrections are suggested to earlier lectotypifications for P. hymenophyllum and P. rhytidocarpum. Extension of distribution to India from Myanmar are recorded for three species: P. acutistigmum, P. leptostachyum and P. pothoides.

APA, Harvard, Vancouver, ISO, and other styles

42

PUTRI, Nola Suryani, and Zozy Aneloi NOLI. "CALLUS CULTURE AS THE METHOD IN PROVIDING ANTIMALARIAL COMPOUNDS OF PIPER GENUS." Journal of Environmental Science for Sustainable Society 10, Supplement (2021): PP03_p8—PP03_p11. http://dx.doi.org/10.3107/jesss.10.pp03.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Crasque, Jeane, Sara Dousseau Arantes, Basílio Cerri Neto, Maria Luiza Pereira Barbosa Pinto, Lúcio de Oliveira Arantes, Thayanne Rangel Ferreira, and José Altino Machado Filho. "Primary metabolism and initial development of grafted black pepper seedlings." Research, Society and Development 10, no. 14 (November 8, 2021): e425101420690. http://dx.doi.org/10.33448/rsd-v10i14.20690.

Full text

Abstract:

The production of black pepper seedlings through grafting is a promising strategy to mitigate the effect of environmental stresses, such as drought, that limit its cultivation. However, studies on compatibility between grafts and rootstocks are still scarce, especially considering the wild species of the genus Piper and the cultivated genotypes of black pepper. The objective of this work was to evaluate the relationship between primary metabolism and the development of black pepper seedlings obtained through intra- and interspecific grafting. The method used was that of cleft lateral grafting, as graft the Bragantina cultivar, better known in the world as ‘Panniyur 1’, and ‘Kottanadan’ cultivar and three wild species (Piper hispidum, Piper aduncum and Piper tuberculatum) were used as root-stock. As a control, ´Bragantina` was grafted onto itself (homograft). The experiment was carried out for 110 days and the seedlings were evaluated for development, gas exchange, and carbohydrate allocation. The rootstock influences the development and primary metabolism of seedlings. P. aduncum showed greater initial compatibility among wild species, due to less impediment to carbohydrate flow. P. tuberculatum showed early incompatibility, as the grafts died. The seedlings grafted on P. hispidum and 'Kottanadan' had initial compatibility with an average of 78% survival and 60% budding, but they may have late incompatibility due to limitation of carbohydrate flow.

APA, Harvard, Vancouver, ISO, and other styles

44

Prasad M. P, Sushant Shekhar, and Babhulkar Amit. "Phytochemical Analysis and Antioxidant potential of Piper species and its Molecular Characterization by RAPD Markers." International Journal of Fundamental and Applied Sciences (IJFAS) 1, no. 4 (December 30, 2012): 46–48. http://dx.doi.org/10.59415/ijfas.v1i4.32.

Full text

Abstract:

BACKGROUD & OBJECTIVE: Piper, the pepper plants or pepper vines, are the genus of the Piperaceae family and areimportant economically and ecologically. It contains more than 1,000 species of shrubs, herbs and lianas, many of which arekeystone species in their native habitat. The diversification of this taxon is of interest to understand the evolution of plants. Inthe scope of bioactive compounds, Piper species (P. nigrum, P. retrofractum and P. longum) were screened forphytochemicals. METHODOLOGY: Phytochemical analysis of these plants showed presence of phenolic compounds,anthraquinones, terpenoids, flavinoids and lignin. Also, the methanolic extracts of these plants were tested for their antioxidantpotential by free radical scavenging activity by DPPH assay. All the tested plants showed antioxidant potential and the overallantioxidant activity of P. nigrum was found to be highest. Genomic DNA was extracted from the fresh leaves of selectedcultivars and PCR was performed by using RAPD primers to check the genetic diversity among these cultivars. From the PCRgenerated fingerprint, dendrogram was plotted by cluster analysis of similarity matrix. RESULTS: Dendrogram constructed bycluster analysis of RAPD markers showed that Piper nigrum and Piper retrofractum are closely related. Since morphologicaldifferences among these species are indistinctive, RAPD characterization can be helpful in their Discrimination.CONCLUSION: This finding can be used as prerequisite for plant breeding activities as well as for conservation of geneticresources.

APA, Harvard, Vancouver, ISO, and other styles

45

MELO, ALINE, and MARCCUS ALVES. "Piper (Piperaceae) in eastern Northeast Brazil." Phytotaxa 505, no. 1 (May 28, 2021): 1–38. http://dx.doi.org/10.11646/phytotaxa.505.1.1.

Full text

Abstract:

Brazil is considered one of the richest countries in Piper species in South America, with the genus being considered one of the most representative of the Brazilian Atlantic Forest. The aim of this study is to improve the knowledge about Piper in the northeastern region of Brazil, and to this end, we recorded the taxa that occur in the eastern portion of this region. Collection expeditions were conducted in the study area between August 2017 and July 2019, 21 herbaria were visited, and other internationally important collections were consulted online. Thirty tree taxa were registered, from which one was recorded for the northeastern region for the first time (P. nematanthera), besides 11 new records for at least one of the states. We present a synopsis with comments about morphology, habitat and phenology.

APA, Harvard, Vancouver, ISO, and other styles

46

Kadhum, Ali Abd, Murtada Wafi Beden, and Ahmad Shandookh Hameed. "Effect of Piper Cubeba Extract on Biofim Producing Pseudomonas Aeruginosa Isolated from Clinical Samples." Saudi Journal of Pathology and Microbiology 9, no. 02 (February 8, 2024): 43–47. http://dx.doi.org/10.36348/sjpm.2024.v09i02.004.

Full text

Abstract:

Background: The species of Pseudomonas aeruginosa is a nosocomial bacterium that increases the risk of multidrug-resistant infections, especially in vulnerable patients. The plant Piper cubeba, commonly referred to as cubeb or tailed pepper, it is specifically cultivated for its fruit and essential oil. The plant belongs to the genus Piper. The study aims at assessing the effectiveness of Piper cubeba extract against different P. aeruginosa strains that could produce biofilm and carry blaIMP gene. Method: Isolates from 85 samples (17 sputum, 40 urine and 28 diarrhea samples). Collected from Al Nasiriyah Teaching Hospital during the period of December 2021 to March 2022. Samples were cultivated using routine cultivation methods, catalase test, oxidase reaction, and the Api20E system were performed to identify P. aeruginosa. Results: Out of a total of 17 isolated samples of Pseudomonas aeruginosa, 3 (17.64%) were from sputum, 6(35.29%) from urine, and 8 (47.05%) diarrhea samples. Out of 17 isolates 6 were sensitive in stool isolates 4 isolates were moderate sensitive and 7 isolates were resistance. Conclusion at concentrations of 25, 50, 75, and 100 mg/mL for Piper cubeba, respectively, the greatest MBC of plant extracts was noted. Also, all the isolates were capable of producing a biofilm by using presterilized 96-well polystyrene microtiter plates. Out of 17 isolates, 9 had a potent biofilm ability and the remaining 7 were moderate biofilm producers. Additionally, 7 of the isolates (41.17%) carried the blaIMP gene. Conclusion: Piper cubeba extract has potential as an antimicrobial agent against both sensitive and moderately resistant strains of Pseudomonas aeruginosa. This antimicrobial effect becomes more pronounced with an increase in the concentration of the extract. Additionally, Pseudomonas aeruginosa that produce biofilms tend to consistently produce more Metallo-beta-lactamase (MBL), which can further contribute to antibiotic resistance.

APA, Harvard, Vancouver, ISO, and other styles

47

Almeda, Fabiana, Laura Astorga, Andrea Orellana, Ligia Sampuel, Paola Sierra, Isabel Gaitán, and Armando Cáceres. "Piper genus: source of natural products with anti-tyrosinase activity favored in phytocosmetics." International Journal of Phytocosmetics and Natural Ingredients 2, no. 1 (June 15, 2015): 6. http://dx.doi.org/10.15171/ijpni.2015.06.

Full text

APA, Harvard, Vancouver, ISO, and other styles

48

Salazar, Diego, M. Alejandra Jaramillo, and Robert J. Marquis. "Chemical similarity and local community assembly in the species rich tropical genus Piper." Ecology 97, no. 11 (November 2016): 3176–83. http://dx.doi.org/10.1002/ecy.1536.

Full text

APA, Harvard, Vancouver, ISO, and other styles

49

Hariyani, Sulifah Aprilya, and Siti Zubaidah. "MOLECULAR CHARACTERIZATION OF Piper retrofractum Vahl IN JAVA USING INTER SIMPLE SEQUENCE REPEATS (ISSR) MARKERS." BIOEDUKASI 20, no. 1 (June 27, 2022): 1. http://dx.doi.org/10.19184/bioedu.v20i1.27691.

Full text

Abstract:

Piper is a genus of the family Piperaceae which has a very large number, in the tropics and sub-tropics. There are about 22 species of Piper which are registered in medicinal herbs and world herbs, one of which is Java chili (Piper retrofractum Vahl.). The morphological characters of P. retrofractum are different in various planting centers, especially the leaf and fruit characters vary. Limitations of morphological characters encourage the use of molecular characters. The purpose of this study was to analyze the molecular character of Java chilli (P. retrofractum) on the island of Java using ISSR (Inter simple sequence repeat) markers. Molecular markers can provide relatively more accurate information because genetic traits tend to be stable in environmental changes and not influenced by age. Leaves from 12 different locations were isolated using the SDS method. Amplification was carried out using 12 ISSR polymers. Data is analyzed using the NTSYS version 2.02 program. The results showed that the amplification of P. retrofractum DNA produced 70 polymorphic DNA bands. The dendrogram results from 12 sampling locations showed that P. retrofractum on Java Island had a similarity coefficient of 0.69-0.93. This shows that genetic diversity based on ISSR markers from P. retrofractum Vahl is relatively low.

APA, Harvard, Vancouver, ISO, and other styles

50

Nerdy, Nerdy, Puji Lestari, Jon Piter Sinaga, Selamat Ginting, Nilsya Febrika Zebua, Vriezka Mierza, and Tedy Kurniawan Bakri. "Brine Shrimp (Artemia salina Leach.) Lethality Test of Ethanolic Extract from Green Betel (Piper betle Linn.) and Red Betel (Piper crocatum Ruiz and Pav.) through the Soxhletation Method for Cytotoxicity Test." Open Access Macedonian Journal of Medical Sciences 9, A (May 23, 2021): 407–12. http://dx.doi.org/10.3889/oamjms.2021.6171.

Full text

Abstract:

Traditional medicine is currently being explored and developed widely by various countries because its cost effectiveness and reduced side effects. The green betel (Piper betle Linn.) and the red betel (Piper crocatum Ruiz and Pav.) are plants from the same Piper genus that are widely cultivated in Indonesia and have various phytochemical properties and pharmacological effects. The objective of this research is to determine the cytotoxicity of green leaves and red betel leaves. This research was conducted in two main stages: first, the extraction and preparation through the soxhletation method; second, a cytotoxicity test through the brine shrimp (Artemia salina Leach) lethality test (BSLT). The results showed that there were lethal concentration 50 % (LC50) value in both green betel leaves ethanolic extract and red betel leaves ethanolic extract, with 44.975 μg per mL and 31.556 μg per mL, respectively. The red betel (leaves ethanolic extract has a higher cytotoxicity than green betel (leaves ethanolic extract which can be seen from the lower lethal concentration of 50% (LC50) value. The difference in cytotoxicity is due to differences in plant varieties that cause variations in phytochemical content which affects the pharmacological effects. The green betel leaves ethanolic extract and the red betel leaves ethanolic extract are cytotoxic and have potential anticancer properties.

APA, Harvard, Vancouver, ISO, and other styles

Journal articles on the topic 'Piper (Genus)'

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