Deinococcus lichenicola sp. nov., A Bacterium Isolated from a Lichen Sample.

IF 2.6 3区生物学 Q3 MICROBIOLOGY

Current Microbiology Pub Date : 2025-08-26 DOI:10.1007/s00284-025-04453-1

Guo-Hua Chen, Lian-Shuang Xiong, Rui Yang, Shu-Ya Zuo, Qing Yuan, Li-Song Wang, Cheng-Lin Jiang, Xin-Yu Wang, Yi Jiang

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Abstract

A Gram-stain-positive bacterium, designated as YIM 134068^T, was isolated from a lichen. Strain YIM 134068^T was non-motile, non-spore forming, coccus shaped, oxidase, and catalase positive. Cells could grow at 10-40 °C (optimum 28 °C) and pH 7.0-8.0 (optimum pH 7.0), and they could proliferate in the salinity range of 0-3.0% (w/v) NaCl. Strain YIM 134068^T possessed MK-8 as the major respiratory quinone, and its predominant cellular fatty acids (> 10%) were summed feature 3 (C_16:1ω7c and/or C_16:1ω6c), C_16:0N alcohol, and C_16:0. Polar lipids comprised of phosphatidyl ethanolamine, two unidentified phospholipids, and seven unindentified phosphoglycolipids. Phylogenetic analysis using 16S rRNA gene sequence indicated that strain YIM 134068^T shared the highest sequence similarities with Deinococcus aetherius ST0316^T (93.2%) and Deinococcus aestuarii SYSU M49105^T (92.1%). The DNA G + C content of YIM 134068^T was 69.1% and the average nucleotide identity and digital DNA-DNA hybridization values between strain YIM 134068^T and the reference strains were 82.6-83.0% and 26.3-26.7%, respectively. Based on the phylogenetic and phenotypic analyses, strain YIM 134068^T is considered to represent a novel species within the genus Deinococcus, for which the name Deinococcus lichenicola sp. nov. is proposed. The type strain is YIM 134068^T = CGMCC 1.61729^T = MCCC 1K08693^T = NBRC 117087^T.

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地衣球菌，一种从地衣样品中分离出来的细菌。

从地衣中分离出革兰氏染色阳性细菌YIM 134068T。菌株YIM 134068T不运动，不形成孢子，呈球菌状，氧化酶和过氧化氢酶阳性。细胞在10 ~ 40℃（最适28℃）和pH 7.0 ~ 8.0（最适pH 7.0）条件下均能生长，在NaCl盐度0 ~ 3.0% （w/v）范围内均能增殖。菌株YIM 134068T以MK-8为主要呼吸醌，其优势细胞脂肪酸（bbb10 %）为特征3 （C16:1ω7c和/或C16:1ω6c）、C16:0 n醇和C16:0。极性脂质由磷脂酰乙醇胺、两种未识别的磷脂和七种未识别的磷酸糖脂组成。采用16S rRNA基因序列进行系统发育分析表明，菌株YIM 134068T与乙球菌ST0316T（93.2%）和猪耳球菌SYSU M49105T（92.1%）序列相似性最高。YIM 134068T的DNA G + C含量为69.1%，与参考菌株的平均核苷酸同源性和数字DNA-DNA杂交值分别为82.6 ~ 83.0%和26.3 ~ 26.7%。基于系统发育和表型分析，认为菌株YIM 134068T代表了Deinococcus属内的一个新种，并建议将其命名为Deinococcus lichenicola sp. nov。型应变为YIM 134068T = CGMCC 1.61729T = MCCC 1K08693T = NBRC 117087 T。

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来源期刊

Current Microbiology 生物-微生物学

CiteScore

4.80

自引率

3.80%

发文量

380

审稿时长

2.5 months

期刊介绍： Current Microbiology is a well-established journal that publishes articles in all aspects of microbial cells and the interactions between the microorganisms, their hosts and the environment. Current Microbiology publishes original research articles, short communications, reviews and letters to the editor, spanning the following areas: physiology, biochemistry, genetics, genomics, biotechnology, ecology, evolution, morphology, taxonomy, diagnostic methods, medical and clinical microbiology and immunology as applied to microorganisms.