数字农科院2.0

Aerophototrophica crusticola gen. nov., sp. nov., isolated from desert biocrusts

文献类型： 外文期刊

作者： Kai Tang;Li-Hua Yang;Yu-Ping Chen;Yu Tao;Fu-Ying Feng;Jian-Yu Meng

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关键词： Aerobic anoxygenic phototrophic bacteria; Bacteriochlorophyll a; Biological soil crusts; Rhodospirillaceae

期刊名称： Int. J. Syst. Evol. Microbiol.

ISSN： 1466-5026

年卷期： 2021 年 71 卷 3 期

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收录情况： JCR（2021版）

摘要： A pink-pigmented, Gram-stain-negative, rod-shaped, strictly aerobic bacterial strain MIMtkB3T, was isolated from moss crusts in Hunshandake desert of China. Cells grew at 15–45 °C (optimum of 28 °C), at pH of 6.0–8.5 (optimum of 7.0) and with 0–1.0 % (w/v) NaCl (optimum of 0 %). The strain could biosynthesize the green-coloured pigment bacteriochlorophyll a (BChl a). The respiratory quinone was ubiquinone Q-10, while C18: 1 ω7c and C18: 1 2OH were the major fatty acids. Phosphatidylethanolamine, phosphatidylglycerol, diphosphatidylglycerol, an unidentified aminophospholipid, one unidentified phospholipid, three unidentified glycolipid and one unidentified lipid were the major polar lipids. Strain MIMtkB3T was most closely related to Oleisolibacter albus NAU-10T, Niveispirillum fermenti CC-LY736T, and Rhodocista centenaria SW of the family Rhodospirillaceae with 16S rRNA gene similarities of 93.09, 92.02 and 91.73%, respectively. The genomic DNA G+C content calculated on complete genome sequencing was 69.3 mol%. The average nucleotide identity between strain MIMtkB3T and its closely related type strains in Rho-dospirillaceae was below 77.96 % and digital DNA–DNA hybridization lower than 24.70 %. Full light utilization pathway of aerobic anoxygenic phototrophic bacteria was identified in the genome. Based on phenotypic, chemotaxonomic and phylogenetic char-acteristics, strain MIMtkB3T represents a novel genus of the family Rhodospirillaceae, for which the name Aerophototrophica crusticola gen. nov., sp. nov. is proposed. The type strain is MIMtkB3T (=KCTC 42633T=MCCC 1K00570T). © 2021 The Authors.

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[1]Aerophototrophica crusticola gen. nov., sp. nov., isolated from desert biocrusts. Kai Tang,Li-Hua Yang,Yu-Ping Chen,Yu Tao,Fu-Ying Feng,Jian-Yu Meng. 2021

[2]Rhizobium Deserti Sp. Nov Isolated From Biological Soil Crusts Collected At Mu Us Sandy Land, China. Liu, L, Liang, LX, Xu, LJ, Chi, M, Zhang, XX, Li, LB. 2020

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