Bacillus korlensis sp. nov., a moderately halotolerant bacterium isolated from a sand soil sample in China.
A Gram-positive-staining, rod-shaped, motile, spore-forming and moderately halotolerant bacterium, designated ZLC-26(T), was isolated from a sand soil sample collected from Xinjiang Province, China, and was characterized by using a polyphasic taxonomic approach. This isolate grew optimally at 30-37 degrees C and pH 7-8. It grew with 0-8% NaCl (optimum, 0-2 %). Comparative 16S rRNA gene sequence analysis showed that strain ZLC-26(T) was closely related to members of the genus Bacillus, exhibiting the highest 16S rRNA gene sequence similarities to Bacillus nealsonii DSM 15077(T) (97.1 %), B. shackletonii LMG 18435(T) (97.0 %), B. siralis 171544(T) (97.0 %), B. circulans IAM 12462(T) (96.7 %) and B. pocheonensis Gsoil 420(T) (96.7 %). Strain ZLC-26(T) contained MK-7 as the predominant menaquinone. The diagnostic diamino acid in the cell-wall peptidoglycan was meso-diaminopimelic acid. The major cellular fatty acids were iso-C(15 : 0), C(16 : 1)omega11c and anteiso-C(15 : 0). The DNA G+C content was 38.2 mol%. These chemotaxonomic results supported the affiliation of strain ZLC-26(T) to the genus Bacillus. However, low DNA-DNA relatedness values and distinguishing phenotypic characteristics allowed genotypic and phenotypic differentiation of strain ZLC-26(T) from recognized Bacillus species. On the basis of the evidence presented, strain ZLC-26(T) is considered to represent a novel species of the genus Bacillus, for which the name Bacillus korlensis sp. nov. is proposed. The type strain is ZLC-26(T) (=CCTCC AB 207172(T)=NRRL B-51302(T)).
Zhang
Lei
L
College of Life Sciences, Wuhan University, Wuhan 430072, PR China.
Wang
Yang
Y
Dai
Jun
J
Tang
Yali
Y
Yang
Qiao
Q
Luo
Xuesong
X
Fang
Chengxiang
C
D001407:Bacillus / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification / Q000502:physiology; D015373:Bacterial Typing Techniques; D001482:Base Composition; D002681:China; D004269:DNA, Bacterial / Q000032:analysis; D005227:Fatty Acids / Q000032:analysis; D020459:Genes, rRNA; D005838:Genotype; D008969:Molecular Sequence Data; D010641:Phenotype; D010802:Phylogeny; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D055049:Salt Tolerance; D017422:Sequence Analysis, DNA; D012822:Silicon Dioxide; D012965:Sodium Chloride; D012988:Soil Microbiology; D013045:Species Specificity
D004269:DNA, Bacterial; D005227:Fatty Acids; D012336:RNA, Ribosomal, 16S; D012965:Sodium Chloride; D012822:Silicon Dioxide