MOE Key Laboratory of Bioinformatics, Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing, China.
Jiangsu Provincial Key Laboratory of Crop Genetics and Physiology, Yangzhou University, Yangzhou, China.
J Exp Bot. 2019 Jul 5;70(13):3391-3400. doi: 10.1093/jxb/erz174.
Herbivorous insects represent one of the major threats to sessile plants. To cope with herbivore challenges, plants have evolved sophisticated defense systems, in which the lipid-derived phytohormone jasmonate plays a crucial role. Perception of insect attack locally and systemically elicits rapid synthesis of jasmonate, which is perceived by the F-box protein COI1 to further recruit JAZ repressors for ubiquitination and degradation, thereby releasing transcription factors that subsequently activate plant defense against insect attack. Here, we review recent progress in understanding the molecular basis of jasmonate action in plant defense against insects.
食草昆虫是对固着植物的主要威胁之一。为了应对食草动物的挑战，植物进化出了复杂的防御系统，其中脂质衍生的植物激素茉莉酸发挥了关键作用。昆虫局部和系统攻击的感知会迅速诱导茉莉酸的合成，F-box 蛋白 COI1 感知茉莉酸，进而招募 JAZ 抑制剂进行泛素化和降解，从而释放转录因子，随后激活植物对昆虫攻击的防御。在这里，我们回顾了近年来在理解茉莉酸在植物防御昆虫中的作用的分子基础方面的进展。
