Effect of Water Deficit on Translocation of Carbohydrate in Solanum tuberosum

Autor:	CJ Pearson, R Munns
Rok vydání:	1974
Předmět:	Ecophysiology chemistry.chemical_classification fungi food and beverages Chromosomal translocation Plant Science Carbohydrate Biology Solanum tuberosum Polysaccharide Photosynthesis Water deficit Horticulture chemistry Botany Agronomy and Crop Science Developmental biology
Zdroj:	Functional Plant Biology. 1:529
ISSN:	1445-4408
DOI:	10.1071/pp9740529
Popis:	The effect of drought on the fixation and translocation of labelled carbon in the potato (S. tuberosum) was examined. Low leaf water potentials resulted in a decrease in translocation which was proportional to the decline in net photosynthesis, irrespective of whether tubers were absent or present. The ratio of 14C entering polysaccharides to that in ethanol-soluble compounds markedly decreased in droughted leaves. These data suggest that the decrease in growth of tubers under conditions of water deficit can be ascribed to direct effects on tuber growth and photosynthesis but not to interference with vein loading or velocity of transport of photosynthate.
Databáze:	OpenAIRE
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