BABA application improves soybean resistance to aphid through activation of phenylpropanoid metabolism and callose deposition

文献类型： 外文期刊

第一作者： Yao, Luming

作者： Yao, Luming;Wang, Biao;Yan, Junhui;Wu, Tianlong;Zhong, Yunpeng

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关键词： soybean aphid; beta-aminobutyric acid; phenylpropanoid pathway; isoflavone; lignin; callose

期刊名称：PEST MANAGEMENT SCIENCE （ 影响因子：4.845； 五年影响因子：4.674 ）

ISSN： 1526-498X

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收录情况： SCI

摘要： BACKGROUND Beta-aminobutyric acid (BABA) confer plant resistance to a broad spectrum of biotic and abiotic stresses. The soybean aphid (SBA), is native to eastern Asia and is a predominant insect pest of soybean. Both isoflavone and lignin pathway are important branches of the general phenylpropanoid pathway, which would be likely associated with resistance against soybean aphid. However, little is known about the role of the phenylpropanoid pathway in defense response to SBA as induced by BABA application. RESULTS The application of BABA effectively enhanced soybean resistance against Aphis glycines, the soybean aphid. Consistent with significantly increased content of isoflavones, especially genistein, the related biosynthetic genes were upregulated by use of BABA. Lignin, another important defense component against arthropods, accumulated at a high level and four lignin biosynthesis related genes were also activated. Additionally, BABA application augmented the expression of callose synthase genes and increased callose deposition in SBA-infested seedlings. In non-caged and caged tests, SBA numbers were significantly reduced in BABA-treated seedlings. CONCLUSION These results demonstrate that application of BABA has an obvious positive effect on soybean resistance to aphids, and this defense response partly depends on the potentiation of isoflavone biosynthesis and callose deposition. (c) 2019 Society of Chemical Industry

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[1]BABA application improves soybean resistance to aphid through activation of phenylpropanoid metabolism and callose deposition. Yao, Luming,Wang, Biao,Yan, Junhui,Wu, Tianlong,Zhong, Yunpeng. 2020

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