NDLI: Bacillus lindianensis sp. nov., a novel alkaliphilic and moderately halotolerant bacterium isolated from saline and alkaline soils

Content Provider	Springer Nature Link
Author	Dou, Guiming Liu, Hongcan He, Wei Ma, Yuchao
Copyright Year	2015
Abstract	Two alkaliphilic and halotolerant Gram-stain positive, rod-shaped and endospore-forming bacteria, designated strains 12-3T and 12-4, were isolated from saline and alkaline soils collected in Lindian county, Heilongjiang province, China. Both strains were observed to grow well at a wide range of temperature and pH values, 10–45 °C and pH 8–12, with optimal growth at 37 °C and pH 9.0, respectively. Growth of the two strains was found to occur at total salt concentrations of 0–12 % (w/v), with an optimum at 4 % (w/v). The G+C contents of the genomic DNA of strains 12-3T and 12-4 were determined to be 42.7 and 42.4 mol%, respectively, and the major cellular fatty acids were identified as anteiso-C15:0 and anteiso-C17:0. In isolate 12-3T, meso-diaminopimelic acid was found to be the diagnostic diamino acid of the cell wall peptidoglycan; diphosphatidylglycerol, phosphatidylethanolamine and phosphatidylglycerol were identified as the major cellular polar lipids; and menaquinone-7 was identified as the predominant isoprenoid quinone. Strains 12-3T and 12-4 share very close 16S rRNA gene sequence similarity (99.74 %) and their DNA–DNA relatedness was 95.3 ± 0.63 %, meaning that the two strains can be considered to belong to the same species. 16S rRNA gene sequence-based phylogenetic analysis revealed strains 12-3T and 12-4 exhibit high similarities to Bacillus pseudofirmus DSM 8715T (98.7 %), Bacillus marmarensis DSM 21297T (97.2 %) and Bacillus nanhaiisediminis CGMCC 1.10116T (97.1 and 97.0 %, respectively). DNA–DNA hybridization values between isolate 12-3T and the type strains of closely related Bacillus species were below 30 %. On the basis of the polyphasic evidence presented, strains 12-3T and 12-4 are considered to represent a novel species of the genus Bacillus, for which the name Bacillus lindianensis sp. nov. is proposed. The type strain is 12-3T (DSM 26864T = CGMCC 1.12717T).
Starting Page	149
Ending Page	158
Page Count	10
File Format	PDF
ISSN	00036072
Journal	Antonie van Leeuwenhoek
Volume Number	109
Issue Number	1
e-ISSN	15729699
Language	English
Publisher	Springer International Publishing
Publisher Date	2015-11-24
Publisher Place	Cham
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Bacillus lindianensis sp. nov. Lindian county Saline and alkaline soil Alkaliphilic Polyphasic taxonomy Microbiology Medical Microbiology Plant Sciences Soil Science & Conservation
Content Type	Text
Resource Type	Article
Subject	Medicine Molecular Biology Microbiology

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