Streptomyces gulbargensis sp. nov., isolated from soil in Karnataka, India.
During the course of screening for industrially important microorganisms, an alkali-tolerant and thermotolerant actinomycete, strain DAS 131T, was isolated from a soil sample collected from the Gulbarga region, Karnataka province, India. The strain was characterized by a polyphasic approach that showed that it belonged to the genus Streptomyces. Growth was observed over a wide pH range (pH 6-12) and at 45 degrees C. The 16S rRNA gene sequence of strain DAS 131T was deposited in the GenBank database under the accession number DQ317411. 16S rRNA gene sequence analysis revealed that strain DAS 131T was most closely related to Streptomyces venezuelae ISP 5230T (AY999739) with a sequence similarity of 99.5% (8 nucleotide differences out of 1,477). Despite this very high sequence similarity, strain DAS 131T was phenetically distinct from S. venezuelae. The DNA relatedness between these strains was 54%, indicating that strain DAS 131T is a distinct genomic species. On the basis of phenetic and genetic analyses, strain DAS 131T is classified as a new species in the genus Streptomyces, for which we propose the name Streptomyces gulbargensis sp. nov.
Dastager
Syed G
SG
Key Laboratory for Microbial Resources of Ministry of Education, Yunnan Institute of Microbiology, Yunnan University, Kunming, Yunnan 650 091, P.R. China.
Li
Wen-Jun
WJ
Agasar
Dayanand
D
Sulochana
Mudgulkar B
MB
Tang
Shu-Kun
SK
Tian
Xin-Peng
XP
Zhi
Xiao-Yang
XY
D000468:Alkalies / Q000494:pharmacology; D000900:Anti-Bacterial Agents / Q000494:pharmacology; D015373:Bacterial Typing Techniques; D004269:DNA, Bacterial / Q000737:chemistry / Q000235:genetics; D004275:DNA, Ribosomal / Q000737:chemistry / Q000235:genetics; D020459:Genes, rRNA; D006358:Hot Temperature; D006863:Hydrogen-Ion Concentration; D007194:India; D008855:Microscopy, Electron, Scanning; D008969:Molecular Sequence Data; D009693:Nucleic Acid Hybridization; D010802:Phylogeny; D012329:RNA, Bacterial / Q000235:genetics; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D017422:Sequence Analysis, DNA; D012689:Sequence Homology, Nucleic Acid; D012988:Soil Microbiology; D013302:Streptomyces / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification* / Q000648:ultrastructure; D013696:Temperature
D000468:Alkalies; D000900:Anti-Bacterial Agents; D004269:DNA, Bacterial; D004275:DNA, Ribosomal; D012329:RNA, Bacterial; D012336:RNA, Ribosomal, 16S