Wolbachia in the flesh: symbiont intensities in germ-line and somatic tissues challenge the conventional view of Wolbachia transmission routes.
Wolbachia in the flesh: symbiont intensities in germ-line and somatic tissues challenge the conventional view of Wolbachia transmission routes.
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DOI：
10.1371/journal.pone.0095122
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发表时间：
2014
期刊：
影响因子：
3.7
通讯作者：
Hughes WO
中科院分区：
文献类型：
--
作者：
Frost CL;Pollock SW;Smith JE;Hughes WO
共生体可以显著影响宿主的进化和生态。共生体的组织特异性分布（组织向性）的调查可以提供重要的洞察主机共生体的相互作用。除其他外，它可以帮助辨别特定传播途径和潜在表型效应的重要性。细胞内的细菌共生体沃尔巴克氏体已被描述为有史以来最大的泛动物，由于广泛的节肢动物，它感染。由于沃尔巴克氏体主要垂直传播，预计通过集中感染生殖组织将增强其传播。在社会性昆虫宿主中，这种向性在逻辑上延伸到生殖种姓而不是不育种姓，因为后者构成垂直传播的死胡同。在这里，我们表明，沃尔巴克氏体是不是专注于生殖组织的真社会性昆虫，和非生殖组织的蚁后和工人的Acromyrmex echinatior，港口大量感染。特别是，沃尔巴克氏体在血淋巴，脂肪体和粪便中的相对较高的强度，建议潜在的水平传播通过寄生虫和粪便-口腔途径，或沃尔巴克氏体调节免疫反应的主机的作用。可能体细胞组织和种姓并不是通常认为的沃尔巴克氏体进化的死胡同。
Symbionts can substantially affect the evolution and ecology of their hosts. The investigation of the tissue-specific distribution of symbionts (tissue tropism) can provide important insight into host-symbiont interactions. Among other things, it can help to discern the importance of specific transmission routes and potential phenotypic effects. The intracellular bacterial symbiont Wolbachia has been described as the greatest ever panzootic, due to the wide array of arthropods that it infects. Being primarily vertically transmitted, it is expected that the transmission of Wolbachia would be enhanced by focusing infection in the reproductive tissues. In social insect hosts, this tropism would logically extend to reproductive rather than sterile castes, since the latter constitute a dead-end for vertically transmission. Here, we show that Wolbachia are not focused on reproductive tissues of eusocial insects, and that non-reproductive tissues of queens and workers of the ant Acromyrmex echinatior, harbour substantial infections. In particular, the comparatively high intensities of Wolbachia in the haemolymph, fat body, and faeces, suggest potential for horizontal transmission via parasitoids and the faecal-oral route, or a role for Wolbachia modulating the immune response of this host. It may be that somatic tissues and castes are not the evolutionary dead-end for Wolbachia that is commonly thought.
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影响因子：
3.7
作者：
Braquart-Varnier C;Lachat M;Herbinière J;Johnson M;Caubet Y;Bouchon D;Sicard M
通讯作者：
Sicard M
影响因子：
1.3
作者：
Baer, B;Krug, A;Hughes, WOH
通讯作者：
Hughes, WOH
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影响因子：
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作者：
Barchuk AR;Cristino AS;Kucharski R;Costa LF;Simões ZL;Maleszka R
通讯作者：
Maleszka R
影响因子：
4.9
作者：
Graeff, Johannes;Jemielity, Stephanie;Keller, Laurent
通讯作者：
Keller, Laurent
影响因子：
2.2
作者：
Armitage, Sophie A. O.;Boomsma, Jacobus J.
通讯作者：
Boomsma, Jacobus J.