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This study investigated whether and how polyamines (PAs) in rice (Oryza sativa L.) plants are involved in drought resistance. Six rice cultivars differing in drought resistance were used and subjected to well-watered and water-stressed treatments during their reproductive period. The activities of arginine decarboxylase, S-adenosyl-L-methionine(More)
Oleanolic acid (OA) and ursolic acid (UA) are important bioactive components in many plants, including persimmon (Diospyros kaki L.). The present work was carried out to determine OA and UA contents in the flesh of persimmon fruit from 32 cultivars, including 23 astringent and 9 non-astringent ones, by applying high performance liquid chromatography (HPLC)(More)
This study tested the hypothesis that abscisic acid (ABA) and ethylene may mediate the effect of post-anthesis soil drying on grain filling of rice (Oryza sativa L.) through regulating its anti-oxidative systems. Two rice cultivars were pot-grown and exposed, from 9 days post anthesis until maturity, to three soil drying treatments: well-watered (WW),(More)
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