Key Laboratory of Economic Plants and Biotechnology, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China.
Key Laboratory of Economic Plants and Biotechnology, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China.
J Genet Genomics. 2013 Dec 20;40(12):597-606. doi: 10.1016/j.jgg.2013.10.001. Epub 2013 Nov 9.
The plant hormone jasmonic acid (JA) plays a central role in plant defense against herbivores. Herbivore damage elicits a rapid and transient JA burst in the wounded leaves and JA functions as a signal to mediate the accumulation of various secondary metabolites that confer resistance to herbivores. Nicotiana attenuata is a wild tobacco species that inhabits western North America. More than fifteen years of study and its unique interaction with the specialist herbivore insect Manduca sexta have made this plant one of the best models for studying plant-herbivore interactions. Here we review the recent progress in understanding the elicitation of JA accumulation by herbivore-specific elicitors, the regulation of JA biosynthesis, JA signaling, and the herbivore-defense traits in N. attenuata.
植物激素茉莉酸（JA）在植物抵御草食性动物方面起着核心作用。草食动物的损害会在受伤的叶片中引发迅速而短暂的 JA 爆发，JA 作为一种信号，介导各种次生代谢物的积累，从而赋予植物对草食性动物的抗性。弱化烟草（Nicotiana attenuata）是一种原产于北美洲西部的野生烟草。经过超过十五年的研究，以及它与专食性昆虫烟蚜夜蛾（Manduca sexta）的独特相互作用，这种植物已成为研究植物-草食性动物相互作用的最佳模型之一。本文综述了关于草食性动物特异性激发子诱导 JA 积累、JA 生物合成的调控、JA 信号转导以及弱化烟草防御特性的最新进展。
