Plant Secondary Metabolites as Defense Tools against Herbivores for Sustainable Crop Protection.
Plant Secondary Metabolites as Defense Tools against Herbivores for Sustainable Crop Protection.
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植物次生代谢物作为可持续作物保护的防御工具。
DOI：
10.3390/ijms23052690
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发表时间：
2022-02-28
影响因子：
5.6
通讯作者：
Behera TK
中科院分区：
文献类型：
--
作者：
Divekar PA;Narayana S;Divekar BA;Kumar R;Gadratagi BG;Ray A;Singh AK;Rani V;Singh V;Singh AK;Kumar A;Singh RP;Meena RS;Behera TK
植物通过生理变化来应对食草动物的攻击，从而进化出多种适应性策略。合成植物次生代谢物（PSM）以提供防御功能并调节防御信号通路，以保护植物免受食草动物的侵害。食草动物损伤会引发复杂的反应，最终导致 PSM 的合成和积累。这些代谢物的生物合成受到包含植物激素的信号分子的相互作用的调节。植物挥发性代谢物在食草动物攻击时释放，能够直接诱导或启动激素防御信号通路。次生代谢物使植物能够快速检测食草动物的攻击，并在快速变化的害虫和环境情况下及时做出反应。一些研究表明，昆虫食草动物对次生代谢物的适应和/或抗性的潜力是有限的。这些代谢物对害虫产生直接毒性，刺激植物对食草动物的抗异种机制，并通过招募食草动物的天敌来间接保护植物。草食动物通过感觉基因的上/下调以及有毒代谢物的隔离或解毒来适应次级代谢物。 PSM 调节涉及宿主植物、食草动物、天敌和传粉者的多营养相互作用。尽管次生代谢产物在植物与传粉媒介相互作用中的作用很少被探讨，但一些报告表明植物和传粉媒介是互惠互利的。对参与次生代谢物生物合成的调节蛋白和基因的分子洞察将为生物合成途径中间体的代谢工程铺平道路，以提高植物对食草动物的耐受性。本综述阐明了 PSM 在调节多营养相互作用中的作用，有助于了解植物与草食动物相互作用的知识，从而以生态友好和可持续的方式对其进行管理。
Plants have evolved several adaptive strategies through physiological changes in response to herbivore attacks. Plant secondary metabolites (PSMs) are synthesized to provide defensive functions and regulate defense signaling pathways to safeguard plants against herbivores. Herbivore injury initiates complex reactions which ultimately lead to synthesis and accumulation of PSMs. The biosynthesis of these metabolites is regulated by the interplay of signaling molecules comprising phytohormones. Plant volatile metabolites are released upon herbivore attack and are capable of directly inducing or priming hormonal defense signaling pathways. Secondary metabolites enable plants to quickly detect herbivore attacks and respond in a timely way in a rapidly changing scenario of pest and environment. Several studies have suggested that the potential for adaptation and/or resistance by insect herbivores to secondary metabolites is limited. These metabolites cause direct toxicity to insect pests, stimulate antixenosis mechanisms in plants to insect herbivores, and, by recruiting herbivore natural enemies, indirectly protect the plants. Herbivores adapt to secondary metabolites by the up/down regulation of sensory genes, and sequestration or detoxification of toxic metabolites. PSMs modulate multi-trophic interactions involving host plants, herbivores, natural enemies and pollinators. Although the role of secondary metabolites in plant-pollinator interplay has been little explored, several reports suggest that both plants and pollinators are mutually benefited. Molecular insights into the regulatory proteins and genes involved in the biosynthesis of secondary metabolites will pave the way for the metabolic engineering of biosynthetic pathway intermediates for improving plant tolerance to herbivores. This review throws light on the role of PSMs in modulating multi-trophic interactions, contributing to the knowledge of plant-herbivore interactions to enable their management in an eco-friendly and sustainable manner.
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影响因子：
3.7
作者：
Badenes-Perez FR;Gershenzon J;Heckel DG
通讯作者：
Heckel DG
DOI：
10.1073/pnas.1208756109
发表时间：
2012-12-04
影响因子：
11.1
作者：
Bleeker, Petra M.;Mirabella, Rossana;Schuurink, Robert C.
通讯作者：
Schuurink, Robert C.
影响因子：
4.8
作者：
Jones, CG;Lawton, JH;Shachak, M
通讯作者：
Shachak, M
影响因子：
2.3
作者：
Bhonwong, Anongnut;Stout, Michael J.;Tantasawat, Piyada
通讯作者：
Tantasawat, Piyada
影响因子：
1.9
作者：
Alvarenga, R.;Moraes, J. C.;Nascimento, A. M.
通讯作者：
Nascimento, A. M.