Jasmonic Acid Signaling Pathway Mediates Decabromodiphenyl Ethane (DBDPE) Tolerance by Modulating Photosynthesis and Oxidative Stress in Sugar Beet: Insights from Integrative Physiological and Multiomics Analyses

文献类型： 外文期刊

第一作者： Zhang, Pengfei

作者： Zhang, Pengfei;Wang, Xuerui;Wang, Yubo;Gu, Wanrong;Liu, Lei;Meng, Yao;Gai, Zhijia;Wang, Cong;Zhang, Shengwei

作者机构：

关键词： decabromodiphenyl ethane; toxicity; tolerance; jasmonic acid signaling; sugar beet; multiomics

期刊名称：JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY （ 影响因子：6.2； 五年影响因子：6.4 ）

ISSN： 0021-8561

年卷期： 2025 年 73 卷 21 期

页码：

收录情况： SCI

摘要： Decabromodiphenyl ethane (DBDPE), an emerging ubiquitous contaminant, enters the food chain through crop bioaccumulation, threatening food safety. This study investigated the bioaccumulation, toxicity, and tolerance mechanisms of DBDPE in sugar beet. The results showed that DBDPE was absorbed by roots and transported to leaves in a constant proportion, with greater toxicity in leaves than in roots. Physiological analyses revealed that DBDPE induced chloroplastic dysfunction and oxidative stress in a concentration-dependent manner. The antioxidant system in response to DBDPE varied with exposure levels. Integrated transcriptomic, proteomic, and metabolomic analyses revealed that remodeling of jasmonic acid (JA) biosynthesis and consequent activation of JA signaling were critical for DBDPE tolerance. Exogenous JA and JA-Ile (active JA) maintained photosynthetic activity by protecting chloroplasts and mitigated oxidative damage by enhancing antioxidant system activity, thereby improving DBDPE tolerance. This study provides an insight into the development of effective mitigation strategies against DBDPE toxicity in crops.

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