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Arch Microbiol. 2019 Sep 12. doi: 10.1007/s00203-019-01720-1. [Epub ahead of print]

Mucilaginibacter hurinus sp. nov., isolated from briquette warehouse soil.

Author information

1
State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China.
2
State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China. mshli7125@mail.hzau.edu.cn.

Abstract

A novel bacterial strain, designated ZR32T, was isolated from briquette warehouse soil in Ulsan (Korea). The strain was aerobic, showing pink-colored colonies on R2A agar. Phylogenetic analyses based on 16S rRNA gene sequences showed that strain ZR32T was closely related to Mucilaginibacter soli R9-65T (97.0%), Mucilaginibacter gynuensis YC7003T (96.9%), and Mucilaginibacter lutimaris BR-3T (96.8%). The values of DNA-DNA relatedness related two highest strains M. soli R9-65T and M. gynuensis YC7003T were 31.2 ± 6.9% and 19.7 ± 0.3%, respectively. Its genome size was 3.9 Mb, comprising 3402 predicted genes. The DNA G+C content of strain ZR32T was 43.0 mol%. The major cellular fatty acids (> 5% of total) were summed feature 3 (C16:1ω6c and/or C16:1ω7c), C16:0, C16:1ω5c, iso-C15:0, iso-C17:0 3-OH, and C17:1ω9c. The major respiratory quinine was menaquinone-7 (MK-7). The major polar lipids were phosphatidylethanolamine, two unidentified phospholipids, one unidentified sphingolipid, and one unidentified polar lipid. Strain ZR32T showed distinctive characteristics such as the temperature and pH for growth ranges, being positive for β-glucosidase, salicin production, negative for N-acetyl-glucosamine assimilation, being resistant to carbenicillin and piperacillin to related species. On the basis of phenotypic, chemotaxonomic, and phylogenetic data, strain ZR32T represents a novel species of the genus Mucilaginibacter, for which the name Mucilaginibacter hurinus sp. nov. is proposed. The type strain is ZR32T (= KCTC 62193 = CCTCC AB 2017285).

KEYWORDS:

Mucilaginibacter hurinus; Polyphasic taxonomy

PMID:
31515591
DOI:
10.1007/s00203-019-01720-1

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