数字农科院2.0

Herbivore-induced volatiles reduce the susceptibility of neighboring tomato plants to transmission of a whitefly-borne begomovirus

文献类型： 外文期刊

作者： Yang, Fengbo;Huang, Tianyu;Tong, Hong;Shi, Xiaobin;Zhang, Rong;Gu, Weina;Li, Yue;Han, Peng;Zhang, Xiaoming;Yang, Yuting;Zhou, Zhixiong;Wu, Qingjun;Zhang, Youjun;Su, Qi

作者机构：

关键词： Bemisia tabaci;disease ecology;herbivore-induced plant volatiles;Solanum lycopersicum;Tetranychus urticae;tomato yellow leaf curl virus;virus transmission

期刊名称： JOURNAL OF EXPERIMENTAL BOTANY

ISSN： 0022-0957

年卷期： 2024 年

页码：

收录情况： SCIE（2024版）

摘要： Plant viruses exist in a broader ecological community that includes non-vector herbivores that can impact vector abundance, behavior, and virus transmission within shared host plants. However, little is known about the effects of non-vector herbivore infestation on virus transmission by vector insects on neighboring plants through inter-plant airborne chemicals. In this study, we investigated how volatiles emitted from tomato plants infested with the two-spotted spider mite (Tetranychus urticae) affect the infection of neighboring plants by tomato yellow leaf curl virus (TYLCV) transmitted by whitefly (Bemisia tabaci). Exposure of neighboring tomato plants to volatiles released from T. urticae-infested tomato plants reduced subsequent herbivory as well as TYLCV transmission and infection, and the jasmonic acid signaling pathway was essential for generation of the inter-plant defense signals. We also demonstrated that (E)-beta-ocimene and methyl salicylic acid were two volatiles induced by T. urticae that synergistically attenuated TYLCV transmission and infection in tomato. Thus, our findings suggest that plant-plant communication via volatiles likely represents a widespread defensive mechanism that substantially contributes to plant fitness. Understanding such phenomena may help us to predict the occurrence and epidemics of multiple herbivores and viruses in agroecosystems, and ultimately to manage pest and virus outbreaks. The volatiles (E )-beta-ocimene and methyl salicylic acid emitted from tomato plants infested with the two-spotted spider mite attenuate transmission and infection of whitefly-borne tomato yellow leaf curl virus in neighboring tomato plants.

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