Salipaludibacillus keqinensis sp. nov., a moderately halophilic bacterium isolated from a saline-alkaline lake

Antonie van Leeuwenhoek
Shuangyan WangHaisheng Wang

Abstract

A novel Gram-stain positive, short rod, forming sub-terminal endospores of ellipsoidal shape, halophilic, alkaliphilic and aerobic bacterium, designated strain KQ-12T, was isolated from a saline-alkaline lake in China, and characterised by a polyphasic taxonomic approach. The isolate grew at 4-40 °C (optimum, 25 °C), at pH 8.0-10.0 (pH 9.0) and in the presence of 0-16% (w/v) NaCl (8%). 16S rRNA gene sequence similarity of KQ-12T to species in the genera Salipaludibacillus ranged from 96.6 to 98.1%. Phylogenetic trees indicated that the strain should be assigned to the genus Salipaludibacillus. The polar lipids of KQ-12T were diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, and an unidentified phospholipid and its major cellular fatty acids were anteiso-C15:0, anteiso-C17:0, iso-C15:0, and C16:0. The isoprenoid quinone was MK-7. These key chemotaxonomic properties also confirmed the affiliation of the strain to the genus Salipaludibacillus. However, some physiological, biochemical properties, low average nucleotide identity and low digital DNA-DNA hybridization relatedness values enabled the strain to be differentiated from closely related species of the genus Salipaludibacillus. Thus, KQ-12T can be classi...Continue Reading

References

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Feb 9, 2017·Antonie van Leeuwenhoek·Ramon Rosselló-MóraIain C Sutcliffe
May 24, 2018·International Journal of Systematic and Evolutionary Microbiology·Mohammad Ali AmoozegarAntonio Ventosa
Jun 1, 2018·International Journal of Systematic and Evolutionary Microbiology·Haisheng WangXin-Hui Xing

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Citations

Feb 6, 2020·Dermatologic Therapy·Ayman AbdelmaksoudMrinal Gupta

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Datasets Mentioned

BETA
MH939198

Methods Mentioned

BETA
light
transmission electron microscopy

Software Mentioned

MIDI Sherlock
MicrobeTrakr plus
mega
clustal
EzTaxon
Orthologous Average Nucleotide Identity Tool - Genome Distance...

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