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High temperature patterns at the onset of seed maturation determine seed yield and quality in oilseed rape (Brassica napus L.) in relation to sulphur nutrition

hal.structure.identifierEcophysiologie Végétale, Agronomie et Nutritions NCS [EVA]
dc.contributor.authorMAGNO MASSUIA DE ALMEIDA, Lethicia
hal.structure.identifierEcophysiologie Végétale, Agronomie et Nutritions NCS [EVA]
dc.contributor.authorAVICE, Jean-Christophe
hal.structure.identifierEcophysiologie Végétale, Agronomie et Nutritions NCS [EVA]
dc.contributor.authorMORVAN BERTRAND, Annette
hal.structure.identifierGEVES Station nationale d'essais de semences
dc.contributor.authorWAGNER, Marie
hal.structure.identifierUnité de Recherche Oenologie [Villenave d'Ornon] [OENO]
dc.contributor.authorREYES GONZÁLEZ-CENTENO, María
hal.structure.identifierUnité de Recherche Oenologie [Villenave d'Ornon] [OENO]
dc.contributor.authorTEISSEDRE, Pierre-Louis
hal.structure.identifierLaboratoire de biogenèse membranaire [LBM]
dc.contributor.authorJACQUES BESSOULE, Jean
hal.structure.identifierLEB Aquitaine Transfert-ADERA
hal.structure.identifierLaboratoire de biogenèse membranaire [LBM]
dc.contributor.authorLE GUÉDARD, Marina
hal.structure.identifierYonsei University
hal.structure.identifierEcophysiologie Végétale, Agronomie et Nutritions NCS [EVA]
dc.contributor.authorKIM, Tae
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorMOLLIER, Alain
hal.structure.identifierEcophysiologie Végétale, Agronomie et Nutritions NCS [EVA]
dc.contributor.authorBRUNEL-MUGUET, Sophie
dc.date.accessioned2024-04-08T11:50:14Z
dc.date.available2024-04-08T11:50:14Z
dc.date.issued2021-05-01
dc.identifier.issn0098-8472
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/195376
dc.description.abstractEnHigh temperatures during the crop reproductive stage impact seed yield and quality. The changing climate will require consideration of the effects of high temperature events that differ from their intensity, their duration and their frequency over the seed quality-building stages. The impact of these features deserve to be investigated at the light of induced thermo-sensitization which can lead to alleviate expected negative impacts. In our work, maturing seeds of the sulphur-demanding crop, oilseed rape, were exposed to several temperature sequences that varied in intensity, duration and frequency at the onset of seed maturation. Results-measured in seeds that were at the onset of maturation when the temperature stress occurred-indicated that (i) the longer the cumulated duration of the temperature stress, the more negatively impacted the quality criteria with decreased fatty acids (FAs) concentration, increased omega 6:omega 3 ratio, lower seed membrane integrity and increased seed dormancy and (ii) a mild stress event prior to heat peaks had an alleviating effect on the negative impact of the later heat peaks (priming effect) on seed nitrogen, desiccation tolerance and the phytohormones involved in thermoinhibition. Sulphur restriction was positive on FAs, protein concentration and negative on breaking dormancy. In addition, sulphur supply interfered with temperature modality, features such that positive impact of sulphur limitation on boosting oxidative response were cancelled with intense late heat peaks. This work provides insights to define thermopriming protocols in relation to the timing of quality building processes, their respective optimal temperature and adequate sulphur supply.
dc.language.isoen
dc.publisherElsevier
dc.subject.enthermotolerance
dc.subject.enstress memory
dc.subject.enpriming
dc.subject.enrepeated stresses
dc.subject.ensulphur
dc.subject.enhigh temperature
dc.subject.enseed quality
dc.subject.enoilseed rape
dc.title.enHigh temperature patterns at the onset of seed maturation determine seed yield and quality in oilseed rape (Brassica napus L.) in relation to sulphur nutrition
dc.typeArticle de revue
dc.identifier.doi10.1016/j.envexpbot.2021.104400
dc.subject.halSciences du Vivant [q-bio]
bordeaux.journalEnvironmental and Experimental Botany
bordeaux.page1-14
bordeaux.volume185
bordeaux.hal.laboratoriesInteractions Soil Plant Atmosphere (ISPA) - UMR 1391*
bordeaux.institutionBordeaux Sciences Agro
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-03363680
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03363680v1
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