Tabrizicola Caldifontis Sp. Nov., Isolated from Hot Spring Sediment Sample

Overview

Journal Curr Microbiol

Specialty Microbiology

Date 2025 Mar 6

PMID 40050427

Authors

Neeli Habib

Inam Ullah Khan

Muhammad Saqib

Mohammad Saeid Hejazi

Vahideh Tarhriz

Sohail Ahmad Jan

Cynthia Meza

Aparna Banerjee

Manik Prabhu Narsing Rao

Wen-Jun Li

Affiliations

Soon will be listed here.

Abstract

A Gram-stain-negative, ovoid to rod-shaped, aerobic, non-motile bacterial strain, designated YIM 73028, was isolated from a sediment sample collected from a hot spring in Tibet, China. Phylogenetic analysis (based on the 16S rRNA gene sequences) indicated that strain YIM 73028 belongs to the genus Tabrizicola and showed the highest sequence similarity to the type strain of Tabrizicola aquatica (97.0%). Growth occurred at 30-50 °C (optimum, 37-45 °C) and pH 6.5-8.5 (optimum, pH 7.0-7.5). The respiratory isoprenoid quinone was ubiquinone Q-10. The polar lipids consisted of phosphatidylcholine, phosphatidylglycerol, diphosphatidylglycerol, phosphatidylethanolamine, unidentified amino lipid and unidentified lipid. The major cellular fatty acids (> 10%) were C ω7c, C ω7c 11-methyl, C and C. The genomic DNA G + C content was 65.7%. The average nucleotide identity value between strain YIM 73028 and type species of Tabrizicola aquatica was lower than 95-96% threshold recommended for distinguishing novel prokaryotic species. Based on the phenotypic, physiological, chemotaxonomic, genotypic, and phylogenetic data, strain YIM 73028 represents a novel species of the genus Tabrizicola, for which the name Tabrizicola caldifontis sp. nov. is proposed. The type strain is YIM 73028 (= KCTC 52713 = CGMCC 1.16151).

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