Relevant bibliographies by topics / Eucalyptus nobilis

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Academic literature on the topic 'Eucalyptus nobilis'

Author: Grafiati
Published: 4 June 2021
Last updated: 4 February 2022

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Journal articles on the topic "Eucalyptus nobilis"

1

Gleadow, Roslyn M., Anita C. Vecchies, and Ian E. Woodrow. "Cyanogenic Eucalyptus nobilis is polymorphic for both prunasin and specific β-glucosidases." Phytochemistry 63, no. 6 (July 2003): 699–704. http://dx.doi.org/10.1016/s0031-9422(03)00245-0.

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2

Veronez, Bruce, Mário Eidi Sato, and Roberto Lomba Nicastro. "Toxicidade de compostos sintéticos e naturais sobre Tetranychus urticae e o predador Phytoseiulus macropilis." Pesquisa Agropecuária Brasileira 47, no. 4 (April 2012): 511–18. http://dx.doi.org/10.1590/s0100-204x2012000400006.

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O objetivo deste trabalho foi avaliar a toxicidade de compostos sintéticos e naturais sobre Tetranychus urticae e o predador Phytoseiulus macropilis. A mortalidade e a taxa de crescimento de T. urticae e seu predador foram avaliadas após a aplicação de: abamectina, clofentezina, fenpropatrina, fenpiroximato, propargito, enxofre e espiromesifeno, nas concentrações recomendadas; óleos de nim (Natuneem e Sempre Verde Killer Neem a 1%); e extratos aquosos a 10% de Dieffenbachia brasiliensis, Annona squamosa, Ruta graveolens, Agave angustifolia, Melia azedarach, Sonchus oleraceus, Mentha spicata x M. suaveolens, Allium cepa, Laurus nobilis e Eucalyptus saligna. A toxicidade aguda e a influência dos compostos sobre a taxa de crescimento instantâneo dos ácaros foram avaliadas em laboratório. Extratos de A. cepa, A. angustifolia, produtos à base de óleo de nim, espiromesifeno, propargito, fenpiroximato, abamectina e fenpropatrina causaram mortalidade superior a 83% em T. urticae. Extrato de A. angustifolia, Natuneem e clofentezina não causaram mortalidade significativa em P. macropilis. Agave angustifolia e Natuneem não afetaram significativamente a taxa de crescimento deste predador. Propargito, fenpiroximato, abamectina, fenpropatrina, espiromesifeno e extrato de L. nobilis afetaram severamente a população de P. macropilis.
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3

Capetti, Francesca, Cecilia Cagliero, Arianna Marengo, Carlo Bicchi, Patrizia Rubiolo, and Barbara Sgorbini. "Bio-Guided Fractionation Driven by In Vitro α-Amylase Inhibition Assays of Essential Oils Bearing Specialized Metabolites with Potential Hypoglycemic Activity." Plants 9, no. 9 (September 21, 2020): 1242. http://dx.doi.org/10.3390/plants9091242.

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Type 2 diabetes mellitus (T2DM) is a metabolic disorder characterized by unpaired blood glycaemia maintenance. T2DM can be treated by inhibiting carbohydrate hydrolyzing enzymes (α-amylases and α-glucosidases) to decrease postprandial hyperglycemia. Acarbose and voglibose are inhibitors used in clinical practice. However, these drugs are associated with unpleasant gastrointestinal side effects. This study explores new α-amylase inhibitors deriving from plant volatile specialized metabolites. Sixty-two essential oils (EOs) from different plant species and botanical families were subjected to α-amylase in vitro enzymatic assay and chemically characterized using gas chromatography coupled to mass spectrometry. Several EOs were found to be potential α-amylase inhibitors, and Eucalyptus radiata, Laurus nobilis, and Myristicafragrans EOs displayed inhibitory capacities comparable to that of the positive control (i.e., acarbose). A bio-guided fractionation approach was adopted to isolate and identify the active fractions/compounds of Eucalyptus radiata and Myristica fragrans EOs. The bio-guided fractionation revealed that EOs α-amylase inhibitory activity is often the result of antagonist, additive, or synergistic interactions among their bioactive constituents and led to the identification of 1,8-cineole, 4-terpineol, α-terpineol, α-pinene, and β-pinene as bioactive compounds, also confirmed when they were tested singularly. These results demonstrate that EO oils are a promising source of potential α-amylase inhibitors.
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Boyko, Olexandra, and Viktor Brygadyrenko. "Nematicidal activity of essential oils of medicinal plants." Folia Oecologica 48, no. 1 (March 1, 2021): 42–48. http://dx.doi.org/10.2478/foecol-2021-0005.

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Abstract We studied the effect of essential oils from Picea abies (Linnaeus) H. Karsten., 1881, Cinnamomum verum J. Presl, 1825, Melaleuca alternifolia (Maiden & Betche) Cheel, 1925, Citrus paradisi Macfadyen, 1830, Rosmarinus officinalis Linnaeus, 1753, Citrus aurantiifolia (Christmann) Swingle, 1913, Syzygium aromaticum (L.) Merrill & Perry, 1939, Pterocarpus santalinus Linnaeus filius, 1782, Pelargonium graveolens L’Héritier, 1789, Eucalyptus globulus Labillardière, 1861, Juniperus communis Linnaeus, 1753, Piper cubeba L.f., 1781, Calendula officinalis L., 1753, Laurus nobilis Linnaeus, 1753, Lavandula angustifolia Miller, 1768 and Citrus sinensis (Linnaeus) Osbeck (pro. sp.) on vitality of free-living larvae of Strongyloides papillosus (Wedl, 1856) and Haemonchus contortus (Rudolphi, 1803) Cobb, 1898, and also survivability of eggs of Ascaris suum (Goeze, 1782) under in vitro conditions. The most notable nematicidal properties belong to 0.5% water emulsion of essential oils from C. verum and S. aromaticum: we observed 100% mortality of larvae of S. papillosus L1–3 and H. contortus L3.
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5

Little, Keith M., and Robin AW Gardner. "Coppicing ability of 20 Eucalyptus species grown at two high-altitude sites in South Africa." Canadian Journal of Forest Research 33, no. 2 (February 1, 2003): 181–89. http://dx.doi.org/10.1139/x02-170.

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In the 1980s, Eucalyptus macarthurii and E. nitens were planted in the colder, higher altitude areas of South Africa to meet the increased demand for pulpwood. To find possible alternatives, six site × species interaction trials were planted in 1990–1991. Based on volume performance and pulping properties, E. badjensis, E. benthamii, E. oreades, E. nobilis, E. smithii, and E. fraxinoides were identified as having good commercial potential. Although the performance of the parent crop is important, the ability to coppice is advantageous because of lower reestablishment costs. To determine this, the ability for these species to coppice was assessed at 10 months after felling at two of the trial sites with widely different growing conditions (Broadholms in Mpumalanga province and Draycott in KwaZulu-Natal province). More than 80% of the living stumps of E. benthamii, E. smithii, E. quadrangulata, E. macarthurii, E. badjensis, E. dunnii, E. cypellocarpa, E. saligna, and E. elata had coppiced at both sites. At Draycott, an exposed, dry site, both E. smithii and E. benthamii could be considered as potential alternative species to E. nitens, because besides having good volume, both species coppiced well. At Broadholms, a more protected and slightly wetter site, the significantly better volume of E. fraxinoides (which did not coppice well) when compared with the other species would mean that a substantial saving in reestablishment costs via coppice regeneration would have to be made before one could consider this method of reestablishment.
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Ebrahimi, Mohammad, Mohammad Hasan Safaralizade, and Oroj Valizadegan. "Contact toxicity ofAzadirachta indica(Adr. Juss.),Eucalyptus camaldulensis(Dehn.) andLaurus nobilis(L.) essential oils on mortality cotton aphids,Aphis gossypiiGlover (Hem.: Aphididae)." Archives Of Phytopathology And Plant Protection 46, no. 18 (November 2013): 2153–62. http://dx.doi.org/10.1080/03235408.2013.774526.

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7

Ebrahimi, Mohammad, Mohammad Hasan Safaralizade, Oroj Valizadegan, and Bentol Hoda Hosaini Amin. "Efficacy of three plant essential oils,Azadirachta indica(Adr. Juss.),Eucalyptus camaldulensis(Dehn.) andLaurus nobilis(L.) on mortality cotton aphids,Aphis gossypiiGlover (Hem: Aphididae)." Archives Of Phytopathology And Plant Protection 46, no. 9 (May 2013): 1093–101. http://dx.doi.org/10.1080/03235408.2012.758347.

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8

Hoyos, Julián Mauricio Ágredo, Eduardo Alves, Luciane Cristina Rozwalka, Elaine Aparecida de Souza, and Walmes Marques Zeviani. "Antifungal activity and ultrastructural alterations in Pseudocercospora griseola treated with essential oils." Ciência e Agrotecnologia 36, no. 3 (June 2012): 270–84. http://dx.doi.org/10.1590/s1413-70542012000300002.

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Pseudocercospora griseola, the etiologic agent of angular leaf spot of common bean (Phaseolus vulgaris), is an important disease in all bean-producing regions worldwide and may cause extremely high yield losses. The control of this disease is made more difficult by the pathogen's genetic variability and the inefficiency of fungicides. In this study, of 26 essential oils tested at different concentrations, 25 demonstrated efficiency in affecting the germination of strains 63-31 and 63-63 of the pathogen, reaching inhibition levels of between 80% and 100%. Cymbopogon citratus and Cymbopogon martinii inhibited conidia germination at all concentrations; Eugenia caryophyllata, Cinnamomum sp., Thymus vulgaris, Matricaria recutita, Cordia verbenacea, Origanum vulgare, Cymbopogon nardus, at 0.1 and 0.5%; and Zingiber officinale, Mentha arvensis, Chamaecyparis pisifera, Lavandula officinalis, Ocimum basilicum, Pimpinella anisum, Ocimum selloi, Baccharis dracunculifolia, Laurus nobilis, Citrus sinensis, Melaleuca alternifolia and Eucalyptus globulus, at 0.5%. The main constituents identified were cinnamaldehyde in Cinnamomum sp.; eugenol in E. caryophyllata; trans-β-farnesene in M. recutita; pulegone in C. verbenacea; thymol in T. vulgaris; geranial and neral in C. citratus, and geraniol in C. martini. Through transmission electron microscopy (TEM), it was verified that C. citratus, C. martini and E. caryophyllata presented direct fungitoxic action on P. griseola, causing severe damage to the cellular ultrastructure of the conidia, invalidating germination. These results indicated that essential oils are a promising alternative strategy for the control of angular leaf spot in bean, representing less risk to human health and the environment.
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9

Madeddu, Silvia, Alessandra Marongiu, Giuseppina Sanna, Carla Zannella, Danilo Falconieri, Silvia Porcedda, Aldo Manzin, and Alessandra Piras. "Bovine Viral Diarrhea Virus (BVDV): A Preliminary Study on Antiviral Properties of Some Aromatic and Medicinal Plants." Pathogens 10, no. 4 (March 29, 2021): 403. http://dx.doi.org/10.3390/pathogens10040403.

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Plant products provide an alternative and successful source of lead compounds for the pharmaceutical industry. The present study was aimed to evaluate, in cell-based assays, the antiviral properties of essential oils obtained from plants that commonly grow in Sardinia, Italy, against a broad spectrum of RNA/DNA viruses. The essential oils of Helichrisumitalicum (Roth) G. Don ssp. microphyllum (Willd.) Nyman, Laurus nobilis L., Mirtuscommunis L., Pistacia lentiscus L., Salvia officinalis L., Saturejathymbra L., Lavandula angustifolia Mill., Foeniculum vulgare Mill., and Eucalyptus globulus Labill. were extracted by hydrodistillation and analyzed by gas chromatography mass spectrometry (GC–MS). Interestingly, the essential oil of Salvia officinalis showed moderate activity against bovine viral diarrhea virus (BVDV), an enveloped RNA virus belonging to the Flaviviridae family. BVDV is responsible for several clinical manifestations in bovines, including respiratory, gastroenteric, and reproductive diseases, with a significant economic impact. With the aim to individuate the constituent of the Salvia officinalis responsible for the biological activity, we tested the major components of the oil: camphene, β-pinene, limonene, 1,8-cineole, cis-thujone, camphor, (E)-caryophyllene, and α-humulene. Here, we describe α-humulene as an active component that is non-cytotoxic and active against BVDV (EC50 = 36 µM). Its antiviral effects were evaluated using virucidal cytopathic effect inhibition and viral yield reduction assays. This is the first scientific report showing the anti BVDV effects of Salvia officinalis essential oil and α-humulene as the main active component.
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10

Ulger, Ismail, Adem Kamalak, Ozer Kurt, Emrah Kaya, and Inan Guven. "Comparison of the chemical composition and anti-methanogenic potential of Liquidambar orientalis leaves with Laurus nobilis and Eucalyptus globulus leaves using an in vitro gas production technique." Ciencia e investigación agraria 44, no. 1 (April 15, 2017): 1–8. http://dx.doi.org/10.7764/rcia.v44i1.1637.

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Dissertations / Theses on the topic "Eucalyptus nobilis"

1

Otim, Christopher Komakech. "Investigation of growth potential of alternative eucalyptus species for mid and high altitude sites in the summer rainfall region in South Africa." Thesis, 2008. http://hdl.handle.net/10413/69.

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A study was undertaken to compare growth potential of three Eucalyptus species of natural origin in South Eastern Australia, with commercially grown species on mid and high altitude temperate sites in the summer rainfall growing zones in South Africa. The three species were Eucalyptus globulus subsp. bicostata (E. bicostata), Eucalyptus cypellocarpa and Eucalyptus nobilis. Nine sites were selected to represent the growing areas of South Africa experiencing cold winter drought with occasional snow falls. Improved, commercially grown pure Eucalyptus species and interspecific hybrid clones were included as controls in the trials to give comparative growth performances on specific sites. Both balanced and unbalanced lattice designs were used to evaluate the growth potential of the unimproved Australian species and the improved commercial controls incorporated into the trials. Volume production and basal area growth were assessed for the three species at all sites. However, only three sub species E.globulus (E. bicostata, E. maidenii and E. globulus) showed varying levels of disease (Mychosphaerella nobilosa) infestation and this was therefore assessed in trials at 12 and 30 months respectively, and correlation analysis was used to study the relationship between the impact of disease infestation and growth performance. It was found that negative phenotypic correlations existed between the levels of infection and tree growth. ie greater infection slower growth. Evaluation of genotype x environment interaction (GXE) revealed that this did not exist in the E. bicostata nor E. nobilis populations, and therefore one population of each species can be developed for all the sites tested. E. cypellocarpa was the only species that showed some GXE interaction implying that separate populations to be developed for different sites. Contrary to what was expected, unimproved Eucalyptus species being investigated performed equally as well as the improved commercial species included as controls, thus providing potential for commercial deployment with selection and breeding.
Thesis (M.Sc.)-University of KwaZulu-Natal, Pietermaritzburg, 2008.
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