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首页> 外文期刊>Journal of Agricultural and Food Chemistry >Benzothiadiazole induces the accumulation of phenolics and improves resistance to powdery mildew in strawberries.
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Benzothiadiazole induces the accumulation of phenolics and improves resistance to powdery mildew in strawberries.

机译：苯并噻二唑诱导酚类物质的积累，并提高了草莓对白粉病的抵抗力。

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摘要

Benzothiadiazole (BTH) enhanced the accumulation of soluble and cell-wall-bound phenolics in strawberry leaves and also improved the resistance to powdery mildew infection under greenhouse conditions. The most pronounced change was seen in the levels of ellagitannins, which increased up to 2- to 6-fold 4 days after the BTH application, but persisted only in the inoculated plants. The induction of phenolic metabolism by BTH was also reflected in the fruits, several compounds being increased in inoculated, BTH-treated plants. Basal salicylic acid (SA) content was high in strawberry leaves, but increased in a similar fashion to other phenolics after the treatments. Several phenolic compounds were identified in strawberries for the first time. For example, ellagic acid deoxyhexose, three agrimoniin-like ellagitannins, sanguiin H-10- and lambertianin C-like ellagitannins in the leaves, ellagic acid, p-coumaric acid, gallic acid, and kaempferol hexose in the cell-wall-bound fraction of the leaves, and kaempferol malonylglucoside in the fruits. The findings show that BTH can enhance the accumulation of phenolics in strawberry plants which may then be involved in the BTH-induced resistance to powdery mildew.
机译：苯并噻二唑（BTH）增强了草莓叶片中可溶性和细胞壁结合酚的积累，并提高了温室条件下白粉病感染的抵抗力。最显着的变化是鞣花单宁水平，在施用BTH后4天增加到2至6倍，但仅在接种的植物中持续存在。 BTH对酚类代谢的诱导也反映在果实中，接种BTH处理的植物中几种化合物的含量增加。草莓叶片中的基础水杨酸（SA）含量较高，但在处理后与其他酚类物质相似。草莓中首次鉴定出几种酚类化合物。例如，叶片中的鞣花酸脱氧己糖，三种类似农杆菌肽的鞣花单宁，血红素H-10-和兰伯汀C样的鞣花单宁，鞣花酸，对香豆酸，没食子酸和山ka酚己糖己糖在细胞壁结合部分中的叶子，以及山茱fer醇的丙二酰葡萄糖苷在果实中。研究结果表明，BTH可以增强草莓植株中酚类物质的积累，然后可能参与BTH诱导的对白粉病的抗性。

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