PHENOLIC-COMPOUNDS IN PLANT-DISEASE RESISTANCE
PHENOLIC-COMPOUNDS IN PLANT-DISEASE RESISTANCE
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DOI：
10.1007/bf02980469
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发表时间：
1988-01-01
期刊：
影响因子：
1.4
通讯作者：
KNEUSEL, RE
中科院分区：
文献类型：
--
作者：
MATERN, U;KNEUSEL, RE
我们建议，一个重要的第一道防线，在植物防御感染提供了非常快速的合成酚类化合物和它们在细胞壁中的聚合。这种快速合成没有时间进行从头酶合成，受到羟化酶的极端pH依赖性的调节，催化从4-香豆酰-CoA形成咖啡酰-CoA。我们进一步提出，激发子处理或感染引起快速的膜变化，导致细胞质pH值的下降。这种下降将有激活羟化酶的效果。
We propose that an important first line in plant defense against infection is provided by the very rapid synthesis of phenolics and their polymerization in the cell wall. This rapid synthesis, which leaves no time for de novo enzyme synthesis, is regulated by the extreme pH-dependence of the hydroxylase, catalyzing the formation of caffeoyl-CoA from 4-coumaroyl-CoA. We further propose that elicitor treatment or infection causes rapid membrane changes leading to a decrease in cytoplasmic pH. This decrease would have the effect of activating the hydroxylase.