茉莉酸类物质在衰老过程中的作用：代谢的信号还是产物？
Jasmonates during senescence: signals or products of metabolism?
机构信息
Julius-von-Sachs-Institute for Biosciences, Pharm. Biology, Biocenter, University of Wuerzburg, Wuerzburg, Germany.
出版信息
Plant Signal Behav. 2010 Nov;5(11):1493-6. doi: 10.1104/pp.110.153114. Epub 2010 Nov 1.
Abstract
Jasmonic acid and derivatives are oxylipin signaling compounds derived from linolenic acid. Jasmonates accumulate during natural and dark-induced senescence but the increase in these compounds is not essential for the initiation or progression of these senescence processes. Here we report that during natural and dark-induced senescence the increase in jasmonate levels does not trigger jasmonate signaling. Furthermore we provide evidence that jasmonate production might result from membrane turnover during dark-induced senescence.
摘要
茉莉酸及其衍生物是来源于亚麻酸的氧代脂环化合物。茉莉酸在自然衰老和暗诱导衰老过程中积累，但这些化合物的增加对于衰老过程的启动或进展并非必需。在这里，我们报告在自然衰老和暗诱导衰老过程中，茉莉酸水平的增加不会引发茉莉酸信号转导。此外，我们提供的证据表明，茉莉酸的产生可能是暗诱导衰老过程中膜周转的结果。
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