Abstract
A novel haloalkalitolerant, rod-shaped bacterium, designated strain YIM 4-4T, was isolated from the surface water of the Dugerno lake, a haloalkaline lake in Inner Mongolia. The taxonomy of strain YIM 4-4T was investigated by a polyphasic approach. Strain YIM 4-4T was Gram-stain-negative, strictly aerobic, non-motile and formed red colonies. Optimal growth conditions were 28 °C, pH 8.0-11.0 and 0.5-2 % NaCl. The major respiratory quinone was menaquinone-7 (MK-7). The polar lipid profile was composed predominantly of phosphatidylethanolamine, six unidentified polar lipids, one phospholipid and one aminolipid. The predominant cellular fatty acids (>5 %) were iso-C15 : 0, iso-C17 : 1I/anteiso-C17 : 1B, iso-C16 : 1G, iso-C17 : 0 3-OH, C16 : 1ω7c/C16 : 1ω6c and iso-C16 : 1. The genomic DNA G+C content was 43.0 mol%. 16S rRNA gene sequence analysis indicated that the members of the genera Cecembia, Fontibacter, Aquiflexum and Indibacter of the family Cyclobacteriaceae (phylum Bacteroidetes) were the most closely related, with 16S rRNA gene sequence similarities ranging from 93.6 to 94.2 %. Other members of the family Cyclobacteriaceae showed sequence similarities < 93.0 %. On the basis of phenotypic, chemotaxonomic and phylogenetic properties, strain YIM 4-4T represents a novel species of a new genus, for which the name Mongoliibacter ruber gen. nov., sp. nov. is proposed. The type strain is YIM 4-4T ( = CCTCC AB 2012966T = DSM 27929T).
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
More From: International journal of systematic and evolutionary microbiology
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.