o-Coumaric acid from invasive Eupatorium adenophorum is a potent phytotoxin
o-Coumaric acid from invasive Eupatorium adenophorum is a potent phytotoxin
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来自侵入性紫茎泽兰的邻香豆酸是一种强效植物毒素
DOI：
10.1007/s00049-012-0105-y
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发表时间：
2012-06-01
期刊：
影响因子：
1.8
通讯作者：
Li, Weiqi
中科院分区：
文献类型：
--
作者：
Zheng, Guowei;Jia, Yanxia;Li, Weiqi
对入侵植物紫茎泽兰（Eupatorium adenophorum）的植物化学研究表明，该植物富含酚类化合物邻香豆酸（或2-羟基香豆酸）。对模式植物拟南芥和农作物的生物学研究表明，邻香豆酸强烈抑制种子萌发、植物生长和根伸长，降低老叶的光合作用，诱导根细胞死亡以及与衰老、氧化应激和系统获得性抗性相关的基因的表达。邻香豆酸的植物毒性效应表现出地下和地上部分之间的选择性和E。紫茎泽兰和其他植物。这些结果表明，邻香豆酸是一种有效的毒素，可能在大肠杆菌的竞争中起重要作用。紫茎泽兰在入侵和建立过程中与邻近植物发生关系。
A phytochemical study of the invasive Eupatorium adenophorum indicated that the plant was rich in a phenolic compound o-coumaric acid (or 2-hydroxycoumaric acid). Biological investigations with the model plant Arabidopsis thaliana and crop plants showed that o-coumaric acid strongly inhibited seed germination, plant growth and root elongation, reduced the photosynthesis in old leaves, and induced the root cell death and the expression of genes related to senescence, oxidative stress, and systemic acquired resistance. The phytotoxic effects of o-coumaric acid exhibit selectivity between under- and above-ground parts of test plants and between E. adenophorum and other plants. These results indicate that o-coumaric acid is a potent toxin that might play an important role in the competition of E. adenophorum with its neighboring plants during its invasion and establishment.