Signaling pathways involved in microbial indoor air pollutant 3-methyl-1-butanol in the induction of stomatal closure in Arabidopsis

Tu Trinh Thi Truong, Chi Chou Chiu, Pei Yu Su, Jing Yu Chen, Tri Phuong Nguyen, Masaru Ohme-Takagi, Ruey-Hua Lee, Wan Hsing Cheng, Hao Jen Huang

研究成果: Article同行評審

摘要

Indoor air pollution is a global problem and one of the main stress factors that has negative effects on plant and human health. 3-methyl-1-butanol (3MB), an indoor air pollutant, is a microbial volatile organic compound (mVOC) commonly found in damp indoor dwellings. In this study, we reported that 1 mg/L of 3MB can elicit a significant reduction in the stomatal aperture ratio in Arabidopsis and tobacco. Our results also showed that 3MB enhances the reactive oxygen species (ROS) production in guard cells of wild-type Arabidopsis after 24 h exposure. Further investigation of 24 h 3MB fumigation of rbohD, the1-1, mkk1, mkk3, and nced3 mutants revealed that ROS production, cell wall integrity, MAPK kinases cascade, and phytohormone abscisic acid are all involved in the process of 3MB-induced stomatal. Our findings proposed a mechanism by which 3MB regulates stomatal closure in Arabidopsis. Understanding the mechanisms by which microbial indoor air pollutant induces stomatal closure is critical for modulating the intake of harmful gases from indoor environments into leaves. Investigations into how stomata respond to the indoor mVOC 3MB will shed light on the plant’s “self-defense” system responding to indoor air pollution. Graphical Abstract: [Figure not available: see fulltext.]

原文English
頁(從 - 到)7556-7568
頁數13
期刊Environmental Science and Pollution Research
31
發行號5
DOIs
出版狀態Published - 2024 1月

All Science Journal Classification (ASJC) codes

  • 環境化學
  • 污染
  • 健康、毒理學和誘變

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