Massilia luteola sp. nov., a novel indole-producing and cellulose-degrading bacterium isolated from soil
文献类型: 外文期刊
作者: Huang X.;Qi S.;Song W.;Yu X.;Zhang H.;Xiang W.;Zhao J.;Wang X.
作者机构:
关键词: 16S rRNA gene;cellulose-degrading;genome characterization;indole-producing;Massilia luteola sp. nov
期刊名称: International Journal of Systematic and Evolutionary Microbiology
ISSN: 1466-5026
年卷期: 2024 年 74 卷 4 期
页码:
收录情况: SCIE(2024版)
摘要: A Gram-stain-negative, rod-shaped, indole-producing, and cellulose-degrading bacterial strain, designated NEAU-G-C5T, was isolated from soil collected from a forest in Dali city, Yunnan province, south China. 16S rRNA gene sequence analysis showed that strain NEAU-G-C5T was assigned to the genus Massilia and showed high sequence similarities to Massilia phosphatilytica 12-OD1T (98.32 %) and Massilia putida 6 NM-7T (98.41 %). Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain NEAU-G-C5T formed a lineage related to M. phosphatilytica 12-OD1T and M. putida 6 NM-7T. The major fatty acids of the strain were C16: 0, C16: 1 ω7c, and C17: 0 cyclo. The respiratory quinone was Q-8. The polar lipid profile of the strain showed the presence of diphosphatidylglycerol, phosphatidylglycerol, and phosphatidylethanolamine. In addition, the average nucleotide identity values between strain NEAU-G-C5T and its reference strains M. phosphatilytica 12-OD1T, M. putida 6 NM-7T, M. norwichen-sis NS9T, and M. kyonggiensis TSA1T were 89.7, 88.2, 81.3, and 88.0 %, respectively, and the levels of digital DNA–DNA hybridization between them were found to be 58.5 % (54.9–62.0 %), 53.2 % (49.8–56.7 %), 31.9 % (28.6–35.5 %), and 57.7 % (54.1–61.2 %), respectively, which were lower than the accepted threshold values of 95–96 % and 70 %, respectively. The DNA G+C content of strain NEAU-G-C5T was 66.5 mol%. The strain could produce indoleacetic acid and cellulase. On the basis of the phenotypic, genotypic, and chemotaxonomic characteristics, we conclude that strain NEAU-G-C5T represents a novel species of the genus Massilia, for which the name Massilia luteola sp. nov. is proposed. The type strain is NEAU-G-C5T (=MCCC 1K08668T=KCTC 8080T). © 2024 The Authors.
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