Ye Wenxiu, Murata Yoshiyuki
Graduate School of Environmental and Life Science, Okayama University Okayama, Japan.
Front Plant Sci. 2016 May 4;7:583. doi: 10.3389/fpls.2016.00583. eCollection 2016.
Stomata, formed by pairs of guard cells in the epidermis of terrestrial plants, regulate gas exchange, thus playing a critical role in plant growth and stress responses. As natural openings, stomata are exploited by microbes as an entry route. Recent studies reveal that plants close stomata upon guard cell perception of molecular signatures from microbes, microbe associated molecular patterns (MAMPs), to prevent microbe invasion. The perception of MAMPs induces signal transduction including recruitment of second messengers, such as Ca(2+) and H2O2, phosphorylation events, and change of transporter activity, leading to stomatal movement. In the present review, we summarize recent findings in signaling underlying MAMP-induced stomatal movement by comparing with other signalings.
气孔由陆生植物表皮中的成对保卫细胞形成，调节气体交换，因此在植物生长和应激反应中发挥关键作用。作为天然开口，气孔被微生物用作进入途径。最近的研究表明，当保卫细胞感知到来自微生物的分子信号，即微生物相关分子模式（MAMPs）时，植物会关闭气孔以防止微生物入侵。对MAMPs的感知会诱导信号转导，包括第二信使如Ca(2+)和H2O2的募集、磷酸化事件以及转运蛋白活性的变化，从而导致气孔运动。在本综述中，我们通过与其他信号传导进行比较，总结了MAMP诱导气孔运动信号传导的最新发现。
