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Variation in phenylpropanoid intermediates associated with adaptation to abiotic stress in the perennial tree species Prunus persica and P. armeniaca

hal.structure.identifierUniversity of Kentucky [UK]
dc.contributor.authorCONRAD, A. O.
hal.structure.identifierClemson University
dc.contributor.authorZHEBENTYAYEVA, T.
hal.structure.identifierUniversity of Tennessee
dc.contributor.authorSTATON, M.
hal.structure.identifierGénétique et Amélioration des Fruits et Légumes [GAFL]
dc.contributor.authorAUDERGON, Jean Marc
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorDECROOCQ, Véronique
hal.structure.identifierUSDA-ARS : Agricultural Research Service
dc.contributor.authorLIU, Z.
hal.structure.identifierASDA-ARS Appalachian Fruit Research Station
dc.contributor.authorDARDICK, C. D.
hal.structure.identifierUnited States Department of Agriculture - US Forest Service
dc.contributor.authorNELSON, C. D.
hal.structure.identifierUniversity of Kentucky [UK]
dc.contributor.authorABBOTT, A.
dc.date.issued2017
dc.date.conference2017-08-05
dc.description.abstractEnPhenological traits, e.g. dormancy, are mechanisms by which perennial tree species have adapted to stressful conditions that are unfavorable for growth. While there are many mechanisms by which trees adapt and respond to stress, the phenylpropanoid pathway in particular is known to be associated with tree stress response. In this study, Prunus persica (peach) and P. armeniaca (apricot) were used as models to explore the relationship between phenylpropanoids and adaptive trait variation. Concentrations of eight phenylpropanoid intermediates were measured throughout dormancy in floral buds of trees that differed genotypically and phenotypically in chill requirement (peach) and bloom date (apricot). There was a significant interaction effect of time and genotype on the concentration of each of the compounds (mixed ANOVA, P < 0.05). Moreover, concentrations of the flavonoid aglycones, apigenin, kaempferol, and quercetin, dropped precipitously in high chill peach and late flowering apricot, around the endodormancy-ecodormancy transition and at the time when buds began to show signs of blooming (e.g. presence of sepals and petals). These results suggest a potential role of phenylpropanoid intermediates in mediating the resumption of growth and development following winter dormancy. A better understanding of tree responses to stress, will be critical for tree improvement programs aimed at identifying and breeding trees more suitable for rapidly changing environments.
dc.language.isoen
dc.publisherAmerican Phytopathological Society Press
dc.publisher.locationSt Paul MN (united states)
dc.source.titlePhytopathology
dc.title.enVariation in phenylpropanoid intermediates associated with adaptation to abiotic stress in the perennial tree species Prunus persica and P. armeniaca
dc.typeCommunication dans un congrès
dc.subject.halSciences du Vivant [q-bio]/Biologie végétale
bordeaux.page1
bordeaux.volume107
bordeaux.issue12
bordeaux.countryUS
bordeaux.title.proceedingPhytopathology
bordeaux.conference.citySan Antonio
bordeaux.peerReviewedoui
hal.identifierhal-02737408
hal.version1
hal.invitednon
hal.conference.organizerThe American Phytopathological Society (APS). USA.
hal.conference.end2017-08-19
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02737408v1
bordeaux.COinSctx_ver=Z39.88-2004&amp;rft_val_fmt=info:ofi/fmt:kev:mtx:journal&amp;rft.btitle=Phytopathology&amp;rft.date=2017&amp;rft.volume=107&amp;rft.issue=12&amp;rft.spage=1&amp;rft.epage=1&amp;rft.au=CONRAD,%20A.%20O.&amp;ZHEBENTYAYEVA,%20T.&amp;STATON,%20M.&amp;AUDERGON,%20Jean%20Marc&amp;DECROOCQ,%20V%C3%A9ronique&amp;rft.genre=unknown


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