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Water deficits uncouple growth from photosynthesis, increase C content, and modify the relationships between C and growth in sink organs Inra
Muller, B.; Pantin, F.; Génard, M.; Turc, O.; Freixes, S.; Piques, M.; Gibon, Y..
In plants, carbon (C) molecules provide building blocks for biomass production, fuel for energy, and exert signalling roles to shape development and metabolism. Accordingly, plant growth is well correlated with light interception and energy conversion through photosynthesis. Because water deficits close stomata and thus reduce C entry, it has been hypothesised that droughted plants are under C starvation and their growth under C limitation. In this review, these points are questioned by combining literature review with experimental and modelling illustrations in various plant organs and species. First, converging evidence is gathered from the literature that water deficit generally increases C concentration in plant organs. The hypothesis is raised that...
Tipo: Journal Article Palavras-chave: C METABOLISM; C SIGNALLING; GROWTH; MODEL; SINK LIMITATION; SOURCE LIMITATION; STARCH; SUGAR; WATER DEFICIT.
Ano: 2011 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD201178b31f14&uri=/notices/prodinra1/2011/06/
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