茉莉酸
卵黄原蛋白
生物
螨
香豆素
孵化
RNA干扰
植物
基因敲除
人口
通才与专种
基因
生物化学
生态学
核糖核酸
人口学
社会学
栖息地
作者
Zhifeng Xu,Jinhui Cheng,Tongyang Wang,Qianqian Huang,Peilin Liu,Mengyu Zhang,Ping Zhang,Lin He
标识
DOI:10.1021/acs.jafc.3c04007
摘要
Plants activate direct and indirect defense mechanisms in response to perceived herbivore invasion, which results in negative consequences for herbivores. Tetranychus cinnabarinus is a polyphagous generalist herbivore that inflicts substantial agricultural and horticultural damage. Our study revealed that mite feeding significantly increased jasmonic acid (JA) in the eggplant. The damage inflicted by the mites decreased considerably following the artificial application of JA, thereby indicating that JA initiated the defense response of the eggplant against mites. The transcriptomic and metabolomic analyses demonstrated the activation of the JA-coumarin pathway in response to mite feeding. This pathway protects the eggplant by suppressing the reproductive capacity and population size of the mites. The JA and coumarin treatments suppressed the vitellogenin gene (TcVg6) expression level. Additionally, RNA interference with TcVg6 significantly reduced the egg production and hatching rate of mites. In conclusion, the JA-coumarin pathway in the eggplant decreases the egg-hatching rate of mites through suppression of TcVg6.
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