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New Intranuclear Symbiotic Bacteria from Macronucleus of Paramecium putrinum—“Candidatus Gortzia Yakutica”
Diversity ( IF 2.1 ) Pub Date : 2020-05-15 , DOI: 10.3390/d12050198
Alexandra Y. Beliavskaia , Alexander V. Predeus , Sofya K. Garushyants , Maria D. Logacheva , Jun Gong , Songbao Zou , Mikhail S. Gelfand , Maria S. Rautian

Holospora-like bacteria (HLB) are obligate intracellular Alphaproteobacteria, inhabiting nuclei of Paramecium and other ciliates such as “Candidatus Hafkinia” is in Frontonia. The HLB clade is comprised of four genera, Holospora, Preeria, “Candidatus Gortzia”, and “Candidatus Hafkinia”. These bacteria have a peculiar life cycle with two morphological forms and some degree of specificity to the host species and the type of nucleus they inhabit. Here we describe a novel species of HLB—“Candidatus Gortzia yakutica” sp. nov.—a symbiont from the macronucleus of Paramecium putrinum, the first described HLB for this Paramecium species. The new endosymbiont shows morphological similarities with other HLB. The phylogenetic analysis of the SSU rRNA gene places it into the “Candidatus Gortzia” clade.

中文翻译:

腐草履带大核中的新型核内共生细菌—“ Candidatus Gortzia Yakutica”

Holospora样细菌(HLB)是专性细胞内α-变形菌,栖细胞核草履虫等纤毛虫诸如“暂定Hafkinia”是Frontonia。HLB进化枝由四个属HolosporaPreeria,“ Candidatus Gortzia”和“ Candidatus Hafkinia”组成。这些细菌具有独特的生命周期,具有两种形态学形式,并且对宿主物种和它们所居住的细胞核类型具有某种程度的特异性。在这里,我们描述了一种HLB的新物种“ Candidatus Gortzia yakutica” sp。十一月。来自草履虫的大核的共生体,首先描述了该草履虫种类的HLB 。新的内共生体与其他HLB的形态相似。在SSU rRNA基因的系统发育分析,并将其放在“暂定Gortzia”分支。
更新日期:2020-05-15
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