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首页> 外文期刊>Applied Microbiology >Incidence of Facultative Bacterial Endosymbionts in Spider Mites Associated with Local Environments and Host Plants
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Incidence of Facultative Bacterial Endosymbionts in Spider Mites Associated with Local Environments and Host Plants

机译:与当地环境和寄主植物相关的蜘蛛螨中兼性细菌内生菌的发生率

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Spider mites are frequently associated with multiple endosymbionts whose infection patterns often exhibit spatial and temporal variation. However, the association between endosymbiont prevalence and environmental factors remains unclear. Here, we surveyed endosymbionts in natural populations of the spider mite, Tetranychus truncatus, in China, screening 935 spider mites from 21 localities and 12 host plant species. Three facultative endosymbiont lineages, Wolbachia, Cardinium, and Spiroplasma, were detected at different infection frequencies (52.5%, 26.3%, and 8.6%, respectively). Multiple endosymbiont infections were observed in most local populations, and the incidence of individuals with the Wolbachia-Spiroplasma coinfection was higher than expected from the frequency of each infection within a population. Endosymbiont infection frequencies exhibited associations with environmental factors: Wolbachia infection rates increased at localities with higher annual mean temperatures, while Cardinium and Spiroplasma infection rates increased at localities from higher altitudes. Wolbachia was more common in mites from Lycopersicon esculentum and Glycine max compared to those from Zea mays. This study highlights that host-endosymbiont interactions may be associated with environmental factors, including climate and other geographically linked factors, as well as the host9s food plant.IMPORTANCE The aim of this study was to examine the incidence of endosymbiont distribution and the infection patterns in spider mites. The main findings are that multiple endosymbiont infections were more common than expected and that endosymbiont infection frequencies were associated with environmental factors. This work highlights that host-endosymbiont interactions need to be studied within an environmental and geographic context.
机译:红蜘蛛经常与多种内共生菌相关,这些内共生菌的感染模式经常表现出时空变化。然而,共生菌内盛性与环境因素之间的关联仍不清楚。在这里,我们调查了中国螨螨(Tetranychus truncatus)自然种群中的共生菌,从21个地区和12种寄主植物中筛选了935种蜘蛛螨。在不同的感染频率(分别为52.5%,26.3%和8.6%)上检测到三个兼性内共生谱系,Wolbachia,Cardinium和Spiroplasma。在大多数当地人群中都观察到了多种共生共生菌感染,并且患有沃尔巴克氏螺旋体合并感染的个体的发生率高于人群中每次感染的频率所预期的比率。内共生体感染频率与环境因素相关:在年平均气温较高的地区,沃尔巴氏菌感染率增加,而在海拔较高的地区,心Card和螺旋体感染率增加。与来自玉米的螨相比,Wolbachia在番茄和大豆中更常见。这项研究强调宿主-内膜共生菌的相互作用可能与环境因素有关,包括气候和其他地理上相关的因素以及宿主的食用植物。蜘蛛螨。主要发现是多重共生共生感染比预期的更为常见,共生共生感染的频率与环境因素有关。这项工作强调,需要在环境和地理环境下研究宿主-内膜间的相互作用。

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