Tamogami S, Kodama O
Laboratory of Phytochemical Ecology, School of Agriculture, Ibaraki University, Japan.
Phytochemistry. 2000 Aug;54(7):689-94. doi: 10.1016/s0031-9422(00)00190-4.
The phytotoxin coronatine induced the accumulation of the flavonoid phytoalexins sakuranetin and momilactone A in rice leaves. Coronatine-inducible sakuranetin production was under the control of kinetin and ascorbic acid (AsA), as observed with jasmonic acid (JA). The effects of kinetin and AsA on the activity of coronatine indicated that coronatine might elicit sakuranetin production in a manner similar to JA. The similarity of both their structures and the manner of elicitation of coronatine and JA suggest that they might interact at the same active site(s) to lead to phytoalexin production.
植物毒素冠菌素可诱导水稻叶片中类黄酮植保素樱花素和稻壳素A的积累。与茉莉酸(JA)一样,冠菌素诱导的樱花素生成受激动素和抗坏血酸(AsA)的调控。激动素和AsA对冠菌素活性的影响表明,冠菌素可能以与JA相似的方式引发樱花素的生成。冠菌素和JA在结构及引发方式上的相似性表明,它们可能在相同的活性位点相互作用,从而导致植保素的生成。