Ohbayashi Tsubasa, Itoh Hideomi, Lachat Joy, Kikuchi Yoshitomo, Mergaert Peter
Institute for Integrative Biology of the Cell, UMR9198, CNRS, Université Paris-Sud, CEA.
Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Hokkaido Center.
Microbes Environ. 2019 Jun 27;34(2):219-222. doi: 10.1264/jsme2.ME19011. Epub 2019 Jun 6.
Insects of the heteropteran superfamilies Coreoidea and Lygaeoidea are consistently associated with symbionts of a specific group of the genus Burkholderia, called the "stinkbug-associated beneficial and environmental (SBE)" group. The symbiosis is maintained by the environmental transmission of symbionts. We investigated European and Japanese populations of the dock bug Coreus marginatus (Coreoidea: Coreidae). High nymphal mortality in reared aposymbiotic insects suggested an obligate host-symbiont association in this species. Molecular phylogenetic analyses based on 16S rRNA gene sequences revealed that all 173 individuals investigated were colonized by Burkholderia, which were further assigned to different subgroups of the SBE in a region-dependent pattern.
异翅亚目缘蝽总科和长蝽总科的昆虫始终与伯克霍尔德氏菌属特定组的共生菌相关联，该组被称为“与蝽相关的有益和环境（SBE）”组。这种共生关系通过共生菌的环境传播得以维持。我们调查了欧洲和日本的瘤缘蝽（Coreus marginatus，缘蝽总科：缘蝽科）种群。在饲养的无共生菌昆虫中若虫死亡率很高，这表明该物种存在专性宿主 - 共生菌关联。基于16S rRNA基因序列的分子系统发育分析表明，所调查的173个个体均被伯克霍尔德氏菌定殖，这些菌根据区域依赖性模式进一步被归入SBE的不同亚组。
