Phoretic specialization on insect herbivores facilitates mite transportation to host plants

Phoretic specialization on insect herbivores facilitates mite transportation to host plants
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昆虫食草动物的游动专门化有利于螨虫运输到寄主植物

DOI:
10.1111/eea.13140
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发表时间:
2022
影响因子:
1.9
通讯作者:
García‐Robledo, Carlos
García‐Robledo, Carlos
中科院分区:
农林科学2区
文献类型:
--
作者:
Bizzarri, Laura;Kuprewicz, Erin K.;Varma, Megana;García‐Robledo, Carlos

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利用另一种生物体进行传播的传播是最有趣的共生相互作用之一。选择正确的宿主对于泳动生物来说至关重要,以确保到达合适的栖息地并遇到潜在的配偶。本研究重点关注 Lasioseius 属的一组泳螨(蜱螨亚纲:Blattisociidae)。在哥斯达黎加的热带湿森林拉塞尔瓦生物站,拉西奥塞螨以寄主姜目植物的幼叶形成的卷轴内的线虫为食。当叶子展开并展开时,螨虫会通过附着在“卷叶甲虫”上分散到另一片卷起的叶子上,“卷叶甲虫”是一群专门捕食姜目(Cephaloleia 和 Chelobasis 属;鞘翅目:叶甲科)的食草昆虫。在这项研究中,我们确定了与 Cephaloleia BeltiBaly 相关的 Lasioseiusmites 是否专门以这种甲虫物种作为泳游宿主。螨虫也可能被共享相同寄主植物的Chelobasis perplexa Baly所吸引。另一种可能性是,Lasioseiusmites 是机会主义的多面手,附着在卷叶甲虫物种(例如 Cephaloleia dorsalisBaly)上,而这些物种从不与 C.belti 或 Ch.perplexa 共享寄主植物。在实验室环境中,我们测试了螨虫是否喜欢来自和/或附着于特定甲虫物种的气味。气味吸引实验表明,从C.belti收集的Lasioseiusmites被C.belti和Ch.perplexa的气味所吸引,但不被C.belti的气味所吸引。背侧。从 C.belti 收集的螨虫附着在 C.belti 和 Ch.perplexa 上,但从未附着在 C.belti 上。背侧。总之,拉西奥螨并不是严格的专家,但能够检测并附着在寄主植物上的甲虫物种。
Phoresy, the use of another organism for dispersal, is one of the most intriguing commensalistic interactions. The selection of a correct host is fundamental for phoretic organisms to ensure arrival to suitable habitats and to encounter potential mates. This study focuses on a group of phoretic mites in the genusLasioseius(Acari: Blattisociidae). In La Selva Biological Station, a tropical wet forest in Costa Rica,Lasioseiusmites feed on nematodes inside the scrolls formed by the young leaves of their hosts, plants in the order Zingiberales. When leaves expand and unfurl, mites disperse to another rolled leaf by clinging onto ‘rolled‐leaf beetles’, a group of insect herbivores specialized on Zingiberales (generaCephaloleiaandChelobasis; Coleoptera: Chrysomelidae). In this study, we determined whetherLasioseiusmites associated withCephaloleia beltiBaly are specialized on this beetle species as a phoretic host. Mites may also be attracted toChelobasis perplexaBaly, sharing the same host plant. Another possibility is thatLasioseiusmites are opportunistic generalists and attach to rolled‐leaf beetle species (e.g.,Cephaloleia dorsalisBaly) that never share host plants with eitherC.beltiorCh.perplexa. In a laboratory setting, we tested whether mites preferred scents from and/or attached to particular beetle species. Scent attraction experiments showed thatLasioseiusmites collected fromC.beltiwere attracted to scents fromC.beltiandCh.perplexa, but were not attracted to scents fromC. dorsalis. Mites collected fromC.beltiattached to bothC.beltiandCh.perplexa,but never toC. dorsalis. In conclusion,Lasioseiusmites are not strict specialists, but are able to detect and attach to beetle species that inhabit their host plant.
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