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Stenotrophomonas nematodicola sp. nov., isolated from Caenorhabditis elegans
Archives of Microbiology ( IF 2.3 ) Pub Date : 2021-09-24 , DOI: 10.1007/s00203-021-02586-y
Xuyang Wei 1 , Shengwei Lei 1 , Yang Deng 2 , Yuqin Zhang 2 , Lin Zhang 1 , Qiuhong Niu 1
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A Gram stain-negative, coccoid rod-shaped, motile by gliding, facultatively aerobic bacterium, designated W5, was isolated from Caenorhabditis elegans samples in Baotianman Natural Reserve (33° 27′ 47′′ N; 111° 48′ 32′′ E), Nanyang, China. The isolate was characterized taxonomically using a polyphasic approach. The 16S rRNA gene of strain W5 exhibited 98.1–99.7% similarity to the 16S rRNA genes of members of the genus Stenotrophomonas, and < 98.0% similarities to those of other bacterial species in the family Lysobacteraceae. The most closely related strains were Stenotrophomonas rhizophila JCM 13333T (99.7%) and Stenotrophomonas bentonitica DSM 103927T (99.2%). The predominant respiratory quinone of the isolate is Q-8. The major fatty acids are iso-C15:0 (38.2%) and antesio-C15:0 (16.6%). The draft genome of strain W5 had a length of 4,402,751 bp and a DNA G + C content of 67.3 mol%. The ANI values between the draft genomes of strain W5 and its closest phylogenetic neighbors S. rhizophila JCM 1333T and S. bentonitica DSM 103927T were 84.7% and 85.0%, respectively. The DDH value between W5 and S. rhizophila JCM 13333T was 30.8%, which was the highest DDH level. We propose that strain W5 represents a novel bacterial species with the name Stenotrophomonas nematodicola sp. nov. and W5 as the type strain. The type strain is W5 (= CPCC 101271T = CGMCC 19401T = KCTC XXXT).

更新日期:2021-09-28
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