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Grazing intensity modulates carbohydrate storage pattern in five grass species from temperate grasslands

hal.structure.identifierEcosystèmes, biodiversité, évolution [Rennes] [ECOBIO]
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorBENOT, Marie-Lise
hal.structure.identifierEcophysiologie Végétale, Agronomie et Nutritions [EVA]
dc.contributor.authorMORVAN-BERTRAND, Annette
hal.structure.identifierEcosystèmes, biodiversité, évolution [Rennes] [ECOBIO]
dc.contributor.authorMONY, Cendrine
hal.structure.identifierEcosystèmes, biodiversité, évolution [Rennes] [ECOBIO]
dc.contributor.authorHUET, Julia
hal.structure.identifierEcosystèmes, biodiversité, évolution [Rennes] [ECOBIO]
dc.contributor.authorSULMON, Cécile
hal.structure.identifierEcophysiologie Végétale, Agronomie et Nutritions [EVA]
dc.contributor.authorDECAU, Marie-Laure
hal.structure.identifierEcophysiologie Végétale, Agronomie et Nutritions [EVA]
dc.contributor.authorPRUD'HOMME, Marie-Pascale
hal.structure.identifierEcosystèmes, biodiversité, évolution [Rennes] [ECOBIO]
hal.structure.identifierLaboratoire de Géographie Physique et Environnementale [GEOLAB]
dc.contributor.authorBONIS, Anne
dc.date.issued2019-02
dc.identifier.issn1146-609X
dc.description.abstractEnRegrowth after defoliation is an essential mechanism of plant tolerance to grazing. In grasses, non-structural carbohydrates (NSC) contained in tiller bases constitute a major substrate for regrowth after defoliation. Using a multi-specific approach, the present study aimed at testing the effect of grazing intensity on NSC concentration in tiller bases. We selected five grazing-tolerant grass species (Agrostis stolonifera, Cynosurus cristatus, Hordeum secalinum, Lolium perenne and Poa trivialis) and collected plants in a grassland subjected to two cattle grazing intensities (intensive versus moderate) for years. We measured NSC concentrations (starch, fructans, sucrose, glucose and fructose) in tiller bases. We found that fructan and sucrose concentrations before the grazing season (April) were higher under intensive than moderate grazing. By contrast, no significant effect of the grazing intensity on these NSC concentrations in tiller bases remained at the end of the grazing season (October). These results suggest that the level of reserves available before the onset of disturbance caused by grazing as well as the reserve replenishment capacity during the grazing season are modified by the intensity of grazing.
dc.language.isoen
dc.publisherElsevier
dc.subject.enTiller bases
dc.subject.enGrassland
dc.subject.enTolerance to grazing
dc.subject.enHPLC
dc.subject.enFructans
dc.subject.enNon-structural carbohydrates
dc.title.enGrazing intensity modulates carbohydrate storage pattern in five grass species from temperate grasslands
dc.typeArticle de revue
dc.identifier.doi10.1016/j.actao.2018.11.005
dc.subject.halSciences de l'environnement/Biodiversité et Ecologie
bordeaux.journalActa Oecologica
bordeaux.page108-115
bordeaux.volume95
bordeaux.peerReviewedoui
hal.identifierhal-01983581
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01983581v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Acta%20Oecologica&rft.date=2019-02&rft.volume=95&rft.spage=108-115&rft.epage=108-115&rft.eissn=1146-609X&rft.issn=1146-609X&rft.au=BENOT,%20Marie-Lise&MORVAN-BERTRAND,%20Annette&MONY,%20Cendrine&HUET,%20Julia&SULMON,%20C%C3%A9cile&rft.genre=article


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