How einkorn (Triticum monoccocum) deals with variable nitrogen (N) and sulphur (S) supply during grain development? Exploration through proteome investigation
2016
Bancel, Emmanuelle | Bonnot, Titouan | Alvarez, David | Davanture, Marlène | Zivy, Michel | Martre, Pierre | Ravel, Catherine | Génétique Diversité et Ecophysiologie des Céréales (GDEC) ; Institut National de la Recherche Agronomique (INRA)-Université Blaise Pascal - Clermont-Ferrand 2 (UBP) | Génétique Quantitative et Evolution - Le Moulon (Génétique Végétale) (GQE-Le Moulon) ; Institut National de la Recherche Agronomique (INRA)-Université Paris-Sud - Paris 11 (UP11)-AgroParisTech-Centre National de la Recherche Scientifique (CNRS) | Écophysiologie des Plantes sous Stress environnementaux (LEPSE) ; Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro)
Book of abstracts, ISBN: 978-80-970662-3-9, EAN: 9788097066239 Poster p. 52<br/>Book of abstracts, ISBN: 978-80-970662-3-9, EAN: 9788097066239Poster p. 52
显示更多 [+] 显示较少 [-]英语. The concentration and composition of storage proteins in mature wheat grain and consequently its quality are strongly affected by nitrogen (N) and sulphur (S) supply1. Einkorn (Triticum monoccocum), a wheat diploid species was used as a model of bread wheat (T. aestivum). Einkorn plants were grown in a greenhouse under controlled conditions with different N and S amounts. Grains were harvested at different stages from 300 to 600°Cd corresponding to the filling phase of grain development. Proteomics approach by gel-free mass spectrometry analysis was used to study effects of N and S nutrition on metabolic proteins (albumins-globulins).The accumulation of storage proteins was affected by N and S supply, with significant changes in the grain composition at maturity. In particular, the accumulation of S-rich and S-poor storage proteins were differentially impacted by S supply. Some metabolic proteins (155 albumins-globulins) were also differentially accumulated in response to the nutrition. A number of proteins involved in key biological functions were either up- or down-regulated. We focus on the data set obtained in response to S supply in order to highlight some proteins and underline mechanisms occurring in response to nutrition in wheat grain.
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