Xiwen Shao1, Dongsheng Gai1, Dapeng Gao1, Yanqiu Geng1,*, Liying Guo1,2,*
Phyton-International Journal of Experimental Botany, Vol.91, No.4, pp. 745-759, 2022, DOI:10.32604/phyton.2022.018933
Abstract The aim of this study was to investigate carbohydrate metabolism in rice seedlings subjected to salt-alkaline stress. Two relatively salt-alkaline tolerant (Changbai 9) and sensitive (Jinongda 138) rice cultivars, grown hydroponically, were subjected to salt-alkaline stress via 50 mM of salt-alkaline solution. The carbohydrate content and the activities of metabolism-related enzymes in the leaves and roots were investigated. The results showed that the contents of sucrose, fructose, and glucose in the leaves and roots increased under salt-alkaline stress. Starch content increased in the leaves but decreased in the roots under salt-alkaline stress. The activities of sucrose-phosphate synthase, sucrose synthase, amylase,… More >
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