Enhanced beta-glucosidase in Western flower thrips affects its interaction with the redox-based strategies of kidney beans under elevated CO2

文献类型： 外文期刊

第一作者： Liu, Xiaowei

作者： Liu, Xiaowei;Wang, Yanhui;Liu, Hui;Huang, Xinyi;Chen, Fajun;Qian, Lei;Yang, Baoqing;Xu, Yujing;Chen, Fajun

作者机构：

关键词： climate change; Frankliniella occidentalis; Phaseolus vulgaris; plant-insect interaction; salivary elicitor

期刊名称：PLANT CELL AND ENVIRONMENT （ 影响因子：7.3； 五年影响因子：8.1 ）

ISSN： 0140-7791

年卷期： 2023 年 46 卷 3 期

页码：

收录情况： SCI

摘要： beta-Glucosidase is validated as an elicitor for early immune responses in plants and it was detected in the salivary glands of Frankliniella occidentalis in previous research. Seven differentially expressed genes encoding beta-glucosidase were obtained by comparing the transcriptomes of F. occidentalis adults grown under two different CO2 concentrations (800 vs. 400 ppm), which might be associated with the differences in the interaction between F. occidentalis adults and its host plant, Phaseolus vulgaris under different CO2 levels. To verify this speculation, changes in defense responses based on the production and elimination of reactive oxygen species (ROS) in P. vulgaris leaves treated with three levels of beta-glucosidase activity under ambient CO2 (aCO(2)) and elevated CO2 (eCO(2)) were measured in this study. According to the results, significantly higher levels of ROS were noticed under eCO(2) compared to aCO(2), which was caused by the increased beta-glucosidase activity in thrips due to increased cellulose content in P. vulgaris leaves under eCO(2). Together with the lower activities of superoxide dismutase (SOD), peroxidase (POD) and catalase (CAT) in injured leaves under eCO(2), P. vulgaris leaves would be negatively affected on redox-based defense by eCO(2), thus facilitating thrips damage under climate change.

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