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Int J Syst Evol Microbiol. 2016 Dec;66(12):5252-5259. doi: 10.1099/ijsem.0.001504. Epub 2016 Sep 18.

Frigoribacterium salinisoli sp. nov., isolated from saline soil, transfer of Frigoribacterium mesophilum to Parafrigoribacterium gen. nov. as Parafrigoribacterium mesophilum comb. nov.

Author information

1
1​Key Laboratory of Microbial Resources (Ministry of Agriculture, China), Institute of Agricultural Resources and Regional Planning, CAAS, Beijing 100081, PR China.
2
2​Key Laboratory of Development and Application of Rural Renewable Energy (MOA, China), Biogas Institute of Ministry of Agriculture, Chengdu 610041, PR China.

Abstract

A Gram-stain-positive, short-rod, aerobic bacterium, designated as strain LAM9155T, was isolated from saline soil sample collected from Lingxian County, Shandong Province, PR China. The strain grew optimally at 25-30 °C, pH 7.0 and 0.5 % (w/v) NaCl. The 16S rRNA gene sequence analysis revealed that strain LAM9155T belonged to the genus Frigoribacterium and was closely related to Frigoribacteriumendophyticum EGI 6500707T (99.4 %), Frigoribacteriumfaeni 801T (98.6 %) and Frigoribacteriummesophilum MSL-08T (96.2 %). The DNA-DNA hybridization values between strain LAM9155T and F. endophyticum JCM 30093T and between strain LAM9155T and F. faeni DSM 10309T were 40.2±2.1 and 32.8±1.6 %, respectively. The major fatty acids of LAM9155T were anteiso-C15 : 0, anteiso-C17 : 0 and iso-C16 : 0. The cell-wall analysis showed the B-type peptidoglycan containing alanine, glutamate, glycine, serine and lysine and that the cell wall contained the sugars galactose and ribose. The genomic DNA G+C content of strain LAM9155T was 68.2 mol%. The predominant menaquinone was MK-9. The main polar lipids were diphosphatidylglycerol, phosphatidylglycerol, one unknown glycolipid and four unknown lipids. Based on the DNA-DNA hybridization and phenotypic, phylogenetic and chemotaxonomic properties, strain LAM9155T could be distinguished from the recognized species of the genus Frigoribacterium and was suggested to represent a novel species, for which the name Frigoribacterium salinisoli sp. nov. is proposed. The type strain is LAM9155T (=ACCC 19902T=JCM 30848T). Moreover, the transfer of F. mesophilum Dastager et al. 2008 to Parafrigoribacterium gen. nov. as Parafrigoribacterium mesophilum comb. nov. (type strain MSL-08T=DSM 19442T=KCTC 19311T) is also proposed.

PMID:
27654623
DOI:
10.1099/ijsem.0.001504
[Indexed for MEDLINE]

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