An introduction to phytophagous insect searching for host-plants through olfaction

PDF HTML阅读 XML下载 导出引用 引用提醒 植食性昆虫寄主植物嗅觉搜寻述介 DOI: 10.5846/stxb202202100334 作者: 作者单位: 作者简介: 通讯作者: 中图分类号: 基金项目: 河南省重大科技专项（201300111500）；河南省玉米产业技术体系植保岗位科学家科研专项（HARS-22-02-G3） An introduction to phytophagous insect searching for host-plants through olfaction Author: Affiliation: Fund Project: 摘要 | 图/表 访问统计 参考文献 相似文献 引证文献 资源附件 文章评论 摘要:植食性昆虫与寄主植物关系的本质是化学。植食性昆虫搜寻寄主的嗅觉媒介是植物气味即化学信息物质。在介绍植物气味构成及其扩散模型基础上，阐述了植物气味在地上植食性昆虫成虫、幼虫和地下植食性昆虫搜寻寄主过程中的嗅觉导向作用，并指出了今后相关研究需要注意的问题。从植物与环境因子的关系来看，植物气味包括构成性气味和诱发性气味两类，这两类气味的概念既相联系而又不同。构成性气味组分及构成因植物分类地位等而不同。诱发性气味组分因植食性昆虫取食、植物病原微生物、机械致伤等因子的胁迫而变化，这种变化性状随植物属和/或种、植株生长发育阶段、胁迫因子性质及其作用方式而不同。无论是哪种植物气味，其释放均具有节律性。气味扩散过程比较复杂，扩散状态可用数学模型表征。对于地上植食性昆虫成虫，植物气味对其寄主搜寻行为具有导向特异性，重点分析了这种特异性形成的两个假说；鳞翅目昆虫幼虫，能够利用植物化学信息物质趋向寄主植物或回避非寄主植物；地下植食性昆虫搜寻寄主，既与寄主植物地下组织释放或分泌的次级代谢物有关，又与一些初级代谢物有关。初级代谢物中的CO2，起着"搜寻触发器"作用。有助于增强人们对昆虫与植物化学联系的理解，同时也为利用植物气味调控植食性昆虫寄主选择行为提供了参考资料。 Abstract:The intrinsic nature of the relationship between herbivorous insects and host plants is chemical. Plant odors, usually called chemical information, mediate process by which search hosts. Based on plant odors diffusion model, this paper summarized olfactory orientation function in host-seeking behavior aboveground adults larvae as well belowground insects, we established some problems that should be given attention future research about plants. From point view environmental factors, contain constitutive inducible establish their correlations differences based relevant concepts. The components vary with taxonomic status. stress herbivore infestation, phytopathogenic microorganisms, mechanical injury. These changes differ genus species, developmental stage, mode action factors. All showed rhythm release. odor complex, state can characterized mathematical models. have a guiding specificity insect. This focuses two hypotheses development specificity. Lepidopteran use phytochemical information materials approach or avoid non-host hosts not only related secondary metabolites released secreted underground tissues plants, but also primary metabolites. CO2 plays role "search trigger". work may contribute better understanding provide references regulating selection seek odor.