Search results for "Acacia"

showing 5 items of 25 documents

La diversité des communautés végétales des forêts alluviales de l’Allier est-elle affectée par l’invasion de l’Érable négundo, du Robinier faux-acaci…

2012

Identifiant ProdInra 270418 SPE EcolDur CT3; Master; L’objectif de notre étude a été d’analyser les effets de l’invasion de 3 espèces végétales (Érable négundo, Robinier faux-acacia, Renouée de Bohême) sur la diversité spécifique et fonctionnelle ainsi que sur la structure et la composition spécifique des communautés végétales des forêts alluviales de l’Allier. Des relevés de végétation ont été réalisés dans des paires de quadrats contiguës, envahis et non envahis par les 3 espèces invasives étudiées et dans 3 habitats envahis des forêts alluviales de l’Allier (Saulaie-peupleraie de niveau topographique haut et bas et Chênaie pédonculée-ormaie). Complémentairement à cette approche, un gradi…

[SDV] Life Sciences [q-bio][SDE] Environmental Sciences[SDV]Life Sciences [q-bio][SDE]Environmental Sciencesplante invasive[SDV.BV]Life Sciences [q-bio]/Vegetal Biologyforêt alluvialeacer negundodiversité spécifique et fonctionnelle[SDV.BV] Life Sciences [q-bio]/Vegetal Biologyreynoutria x bohemicarobinia pseudoacacia
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Polyacanthoside A, a new oleanane-type triterpenoid saponin with cytotoxic effects from the leaves of Acacia polyacantha (Fabaceae)

2018

The chemical investigation of the leaves and stem bark of Acacia polyacantha (Fabaceae) led to the isolation of a new oleanane-type triterpenoid saponin named polyacanthoside A 1 together with fifteen known compounds. Their structures were established from spectral , mainly HRESIMS, 1D NMR and 2D NMR and by comparison with literature data. The cytotoxicity of compound 1 and the analogues 8 as well as doxorubicin was determined in a panel of 9 cancer cell lines including sensitive and drug resistant phenotypes. Unlike the analogue 8, compound 1 as well as doxorubicin displayed cytotoxic effects in all the 9 tested cancer cell lines with IC50 values ranged from 8.90 μM (towards CCRF-CEM leuke…

chemistry.chemical_classificationStem barkbiologyTraditional medicine010405 organic chemistryChemistryOrganic ChemistryAcaciaPlant ScienceFabaceaebiology.organism_classification01 natural sciencesBiochemistry0104 chemical sciencesAnalytical Chemistry010404 medicinal & biomolecular chemistrychemistry.chemical_compoundCytotoxic T cell3-O-methyl-D-chiro-inositolOleananeTriterpenoid saponin
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Effects of tannin-containing diets on small ruminant meat quality

2010

Tannins are phenolic compounds present in several forages, tree leaves and by-products used for small ruminant feeding in the Mediterranean area. Although the effects of dietary tannins on small ruminant growth performances have been largely studied, only in the last ten years researchers have started to study the effects of tannins on meat quality. Meat from small ruminants given tanniniferous diets is lighter in colour compared to meat from animals given the same diets but in which the effects of tannins have been eliminated by the supplementation of polyethylene glycol. This result has been obtained with tannins from different feeds (carob pulp, acacia leaves or sulla fresh herbage). Rec…

chemistry.chemical_classificationbiology040301 veterinary sciencesLinoleic acidConjugated linoleic acidFlavour0402 animal and dairy scienceAcacia04 agricultural and veterinary sciencesbiology.organism_classification040201 dairy & animal sciencemeat quality0403 veterinary sciencechemistry.chemical_compoundRumenchemistryTanninAnimal Science and ZoologySkatoleVitamin B12Food sciencelcsh:Animal culturelcsh:SF1-1100
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<i>Acacia cyclops</i> A. Cunn. ex G. Don (Leguminosae) in Italy: first cases of naturalization

2012

The first two cases of naturalization of <i>Acacia cyclops</i> are reported for Italy. Young trees were observed growing in the wild some 15 years ago on Linosa (Pelagie Islands, Strait of Sicily). A decade later, this alien plant should no longer be considered as a casual, since a very intensive process of self-sown regeneration has been observed in some plantations on Lampedusa, the major island of the same Archipelago. The available literature suggests the need for careful monitoring of the ongoing invasion process, as <i>A. cyclops</i> has already shown a very invasive behaviour elsewhere within Mediterranean-type biomes due to its ability to withstand high envir…

geographygeography.geographical_feature_categorybiologyEcologyAlien plantsflora vascular insularisland vascular floraAcaciaIntroduced speciesPlant ScienceEcological successionMediterraneanCyclopsbiology.organism_classificationInvasive specieslcsh:QK1-989Propaguleinvasiones biológicaslcsh:BotanyArchipelagoAcacia cyclopsBiological invasionsMediterráneoXenófitasEcology Evolution Behavior and SystematicsAnales del Jardín Botánico de Madrid
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Diversité des champignons mycorhiziens à arbuscules en association avec Acacia saligna dans différentes régions de la Tunisie

2022

Acacia saligna, appelée également Acacia cyanophylla, est une fabacée arbustive originaire de l'Australie. Cette plante a une grande résilience et s’adapte facilement à de nombreux écosystèmes différents, ce qui lui confère une importance économique forte. De plus, elle forme plusieurs symbioses racinaires avec des microorganismes qui favorisent son développement et améliorent sa résistance vis à vis de différents stress biotiques et abiotiques :(i) les rhizobiums qui fixent l’azote atmosphérique et (ii) les champignons mycorhiziens à arbuscules (CMA) En Tunisie, aucune étude ciblant des microorganismes formant des symbioses racinaires associées à A. saligna n’a été effectuée. Ce travail s’…

racine[SDV] Life Sciences [q-bio]solAcacia salignachampignon mycorhizien à arbusculesMiSeq IlluminaTunisiediversité
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