27.ジャスモン酸はアブシジン酸による老化促進活性を高める(口頭発表)

概要

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Senescence in monocarpic plants, such as legume and wheat, is dramatic because the entire resources of the plant are mobilized and redirected to support seed development. We found that the level of senescence promoting activity in extract of soybean pods changed greatly during the plant growth. Abscisic acid (ABA) was first identified as senescence promoting factor. However, senescence promoting activity in pod extract could not be explained by endogenous ABA content because soybean pod did not contain enough amounts of ABA. As a result of further purification, it was found that jasmonic acid (JA) played a role as synergist against ABA and exhibited the synergic effect at 10^<-6> M. We investigate whether JA regulates the monocarpic senescence of soybean.
植物化学調節学会の論文
2007-10-05