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Commensal microbiota modulates larval foraging behaviour, development rate and pupal production in Bactrocera tryoni.
BMC Microbiology ( IF 4.2 ) Pub Date : 2019-12-24 , DOI: 10.1186/s12866-019-1648-7
Juliano Morimoto 1, 2 , Binh Nguyen 1 , Shabnam T Tabrizi 1 , Ida Lundbäck 1 , Phillip W Taylor 1 , Fleur Ponton 1 , Toni A Chapman 3
Affiliation  

BACKROUND Commensal microbes can promote survival and growth of developing insects, and have important fitness implications in adulthood. Insect larvae can acquire commensal microbes through two main routes: by vertical acquisition from maternal deposition of microbes on the eggshells and by horizontal acquisition from the environment where the larvae develop. To date, however, little is known about how microbes acquired through these different routes interact to shape insect development. In the present study, we investigated how vertically and horizontally acquired microbiota influence larval foraging behaviour, development time to pupation and pupal production in the Queensland fruit fly ('Qfly'), Bactrocera tryoni. RESULTS Both vertically and horizontally acquired microbiota were required to maximise pupal production in Qfly. Moreover, larvae exposed to both vertically and horizontally acquired microbiota pupated sooner than those exposed to no microbiota, or only to horizontally acquired microbiota. Larval foraging behaviour was also influenced by both vertically and horizontally acquired microbiota. Larvae from treatments exposed to neither vertically nor horizontally acquired microbiota spent more time overall on foraging patches than did larvae of other treatments, and most notably had greater preference for diets with extreme protein or sugar compositions. CONCLUSION The integrity of the microbiota early in life is important for larval foraging behaviour, development time to pupation, and pupal production in Qflies. These findings highlight the complexity of microbial relations in this species, and provide insights to the importance of exposure to microbial communities during laboratory- or mass-rearing of tephritid fruit flies.

中文翻译:

共生菌群可调节小act小实蝇的幼虫觅食行为,发育速度和p的产量。

背景共有微生物可以促进正在发育的昆虫的存活和生长,并在成年后具有重要的健康意义。昆虫幼虫可通过两种主要途径获取共生微生物:通过垂直吸收来自母体在蛋壳上沉积的微生物,以及通过从幼虫生长环境中进行水平吸收。然而,迄今为止,关于通过这些不同途径获得的微生物如何相互作用以形成昆虫发育的信息知之甚少。在本研究中,我们调查了昆士兰果蝇(Bactrocera tryoni)在垂直和水平方向上获得的微生物群如何影响幼虫的觅食行为,化ation的发育时间和p的生产。结果垂直和水平获取的微生物群都需要最大限度地提高Qfly的p产量。而且,暴露于垂直和水平获得的菌群的幼虫比没有暴露或仅获得水平获得的菌群的化幼虫早。幼虫的觅食行为也受到垂直和水平采集的菌群的影响。相比于其他处理的幼虫,来自既不暴露于垂直菌群也没有水平获取的菌群的幼虫在觅食斑块上总体上花费的时间更长,并且最值得注意的是,它们对具有极端蛋白质或糖分成分的饮食具有更大的偏爱。结论生命早期微生物群的完整性对于幼虫的觅食行为,化ation的发育时间以及Q蝇的production生产很重要。这些发现凸显了该物种中微生物关系的复杂性,
更新日期:2019-12-25
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