The host fruit amplifies mutualistic interaction between Ceratitis capitata larvae and associated bacteria
The host fruit amplifies mutualistic interaction between Ceratitis capitata larvae and associated bacteria
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寄主果实增强了头状实蝇幼虫与相关细菌之间的互利相互作用
DOI：
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
E. Jurkevitch
中科院分区：
文献类型：
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作者：
D. S. Y. Zaada;M. Ben;B. Yuval;E. Jurkevitch
背景：地中海实蝇Ceratitis capitata是园艺中的主要害虫。果蝇幼虫的发育是由果实组织中的细菌腐烂介导的。尽管细菌对幼虫发育的重要性，但对细菌和幼虫在其真实生态环境中的相互作用知之甚少。了解它们在寄主果实中的相互关系和相互依赖性对于开发新的害虫控制界面来处理这种害虫是重要的。结果：我们发现测试的细菌分离株对卵孵化或幼虫发育没有负面影响。不同的共生体栖息在苍蝇的消化系统中的不同程度的贡献，苍蝇幼虫的发展取决于给定的主机和它们的敏感性诱导抑制所造成的女性产生的抗菌肽。这些差异不仅在属或种水平上观察到，而且在同一种的分离物之间也观察到。我们展示了来自母亲肠道的微生物群如何支持水果宿主中幼虫的发育，并表明幼虫在受感染水果中传播细菌传染病方面发挥了重要作用。此外，我们提出（第一次）的证据，水平转移的细菌之间的幼虫不同的母体起源，共同发展在同一个水果。结论：幼虫在水果中微生物种群的传播和形成中起主要作用。在同一果实中发育的不同个体之间的细菌转移表明，受感染的果实作为微生物中心，用于个体之间细菌菌株的扩增和传播。
Background: The Mediterranean fruit fly Ceratitis capitata is a major pest in horticulture. The development of fly larvae is mediated by bacterial decay in the fruit tissue. Despite the importance of bacteria on larval development, very little is known about the interaction between bacteria and larvae in their true ecological context. Understanding their relationship and inter-dependence in the host fruit is important for the development of new pest control interfaces to deal with this pest. Results: We find no negative effects on egg hatch or larval development brought about by the bacterial isolates tested. The various symbionts inhabiting the fly’s digestive system differ in their degree of contribution to the development of fly larvae depending on the given host and their sensitivity to induced inhibition caused by female produced antimicrobial peptides. These differences were observed not only at the genus or species level but also between isolates of the same species. We demonstrate how the microbiota from the mother’s gut supports the development of larvae in the fruit host and show that larvae play a major role in spreading the bacterial contagion in the infected fruit itself. In addition, we present (for the first time) evidence for horizontal transfer of bacteria between larvae of different maternal origin that develop together in the same fruit. Conclusions: Larvae play a major role in the spread and shaping of the microbial population in the fruit. The transfer of bacteria between different individuals developing in the same fruit suggests that the infested fruit serves as a microbial hub for the amplification and spread of bacterial strains between individuals.
影响因子：
30.3
作者：
Douglas AE
通讯作者：
Douglas AE