Interplay between sulfur nutrition and water stress tolerance in pea : a focus on seed development and composition

International audience; Water stress and sulfur-deficiency are two constraints increasingly faced by crops due to climate change and low-input practices. To investigate their interplay in the grain legume pea (Pisum sativum L.), sulfate was depleted at mid-vegetative stage and a moderate 9-day water stress period was imposed during the early reproductive phase. The combined stress accelerated seed production, lowering yield, one-seed weight and seed number per plant, but rebalanced seed globulin composition. In fact, the moderate water stress mitigated the negative effect of sulfur-deficiency on the accumulation of sulfur-rich globulins in seeds, probably due to a lower seed sink strength f…

Changes in the pea seed proteome in response to drought combined with sulfur deficiency

EABAPGEAPSI DOCT INRA; Pea (Pisum sativum L.) produces seeds rich in proteins, but seed yield and quality remain unstable across years due to abiotic stresses occurring during the reproductive period. Drought and sulfur deficiency are two abiotic stresses that interact in the current context of climate change and lowinput practices, and recent studies suggest a role of sulfate transport and metabolism in the plant response to drought (Ernst et al., 2010; Chan et al., 2013; Gallardo et al., 2014; Ahmad et al., 2016). In this study, we investigated the impact of sulfur deficiency combined with drought on the pea seed proteome. Pea plants were subjected to sulfur-deficiency two weeks after sow…

Etude de l'impact d'un double stress carence en soufre-sécheresse sur le métabolisme et la composition protéique des graines de pois

Analyse protéomique des graines de pois en embryogénèse et à maturité : Impact d’un stress hydrique combiné à une carence en soufre

International audience

L'interaction entre la nutrition soufrée et la réponse du pois au stress hydrique

International audience

Etude du rôle de la nutrition soufrée dans la réponse du pois au stress hydrique par une approche protéomique : Focus sur les graines

International audience