Mythimna separata herbivory primes maize resistance in systemic leaves.
Mythimna separata herbivory primes maize resistance in systemic leaves.
复制标题
食草粘虫引发全身叶片的玉米抗性
DOI：
10.1093/jxb/erab083
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发表时间：
2021-05-04
影响因子：
6.9
通讯作者：
Wu J
中科院分区：
文献类型：
--
作者：
Malook SU;Xu Y;Qi J;Li J;Wang L;Wu J
摘要生物和非生物信号可以触发植物启动，使植物对随后的挑战做出更强和/或更快的反应。众所周知，植食性激活防御相关的反应系统的叶子。然而，很少有人知道昆虫喂养是否激活启动系统性叶片。为了确定植食性是否以及如何在玉米系统性叶中诱导引发，进行了昆虫生物测定、植物激素和防御代谢物定量以及遗传和转录组分析的组合。实际和模拟的粘虫取食玉米局部叶片，激发系统叶片茉莉酸和苯并恶嗪类化合物的积累，提高对粘虫的抗性。分离。玉米系统叶启动的激活既取决于模拟取食的持续时间，也取决于M。分离物的口腔分泌物在当地的叶片，和遗传分析表明，茉莉酸和benzoxazinoids介导的引发防御系统的叶片。一致的是，在响应模拟植食动物，引发的系统性叶片表现出大量的基因，独特的调节或显示进一步的上调或下调相比，非引发的系统性叶片。本研究为玉米引发的调控及其生态学功能提供了新的认识。
Abstract Biotic and abiotic cues can trigger priming in plants, which enables plants to respond to subsequent challenge with stronger and/or faster responses. It is well known that herbivory activates defense-related responses in systemic leaves. However, little is known about whether insect feeding activates priming in systemic leaves. To determine whether and how herbivory induces priming in maize systemic leaves, a combination of insect bioassays, phytohormone and defense metabolite quantification, and genetic and transcriptome analyses were performed. Actual and simulated Mythimna separata herbivory in maize local leaves primed the systemic leaves for enhanced accumulation of jasmonic acid and benzoxazinoids and increased resistance to M. separata. Activation of priming in maize systemic leaves depends on both the duration of simulated herbivory and perception of M. separata oral secretions in the local leaves, and genetic analysis indicated that jasmonic acid and benzoxazinoids mediate the primed defenses in systemic leaves. Consistently, in response to simulated herbivory, the primed systemic leaves exhibited a large number of genes that were uniquely regulated or showed further up- or down-regulation compared with the non-primed systemic leaves. This study provides new insight into the regulation and ecological function of priming in maize.
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影响因子：
16.6
作者：
Erb, Matthias;Veyrat, Nathalie;Robert, Christelle A. M.;Xu, Hao;Frey, Monika;Ton, Jurriaan;Turlings, Ted C. J.
通讯作者：
Turlings, Ted C. J.
影响因子：
56.9
作者：
Frey, M;Chomet, P;Gierl, A
通讯作者：
Gierl, A
影响因子：
5.1
作者：
Gao, Lei;Shen, Guojing;Wu, Jianqiang
通讯作者：
Wu, Jianqiang
DOI：
10.1073/pnas.1209329109
发表时间：
2012-08-07
影响因子：
11.1
作者：
Dowen, Robert H.;Pelizzola, Mattia;Ecker, Joseph R.
通讯作者：
Ecker, Joseph R.
影响因子：
7.2
作者：
Erb, Matthias;Flors, Victor;Ton, Jurriaan
通讯作者：
Ton, Jurriaan