title: Streptomyces sparsus sp. nov., isolated from a saline and alkaline soil.
abstract: A salt- and alkali-tolerant actinomycete strain, YIM 90018(T), was isolated from a saline and alkaline soil sample collected from Qinghai, China. Aerial hyphae of strain YIM 90018(T) were only produced on YIM 82 agar. Vegetative hyphae were well developed and did not fragment. Straight or flexuous (rectiflexibiles) spore chains were produced. The isolate grew well with 25 % (w/v) MgCl(2)  x  6H(2)O and at pH 10. All of these characters indicated that strain YIM 90018(T) belonged to the genus Streptomyces. On the basis of phylogenetic analysis of the 16S rRNA gene sequence, DNA-DNA hybridization and phenotypic characteristics, strain YIM 90018(T) could be differentiated from all recognized species of the genus Streptomyces. A novel species, Streptomyces sparsus sp. nov., is proposed, with strain YIM 90018(T) ( = CCTCC AA204019(T) = DSM 41858(T)) as the type strain.
authors.affiliation: Yunnan Institute of Microbiology, Yunnan University, Kunming, Yunnan 650091, PR China.
authors.forename: Yi
authors.initials: Y
authors.lastname: Jiang
authors.affiliation: College of Resources and Environment, Northwest A & F University, 712100 Yangling, Shaanxi, PR China.|Yunnan Institute of Microbiology, Yunnan University, Kunming, Yunnan 650091, PR China.
authors.forename: Yan-Ru
authors.initials: YR
authors.lastname: Cao
authors.affiliation: Leibniz-Institut für Meereswissenschaften, IFM-GEOMAR, Düsternbrooker Weg 20, D-24105 Kiel, Germany.
authors.forename: Jutta
authors.initials: J
authors.lastname: Wiese
authors.affiliation: Yunnan Institute of Microbiology, Yunnan University, Kunming, Yunnan 650091, PR China.
authors.forename: Shu-Kun
authors.initials: SK
authors.lastname: Tang
authors.affiliation: Yunnan Institute of Microbiology, Yunnan University, Kunming, Yunnan 650091, PR China.
authors.forename: Li-Hua
authors.initials: LH
authors.lastname: Xu
authors.affiliation: Leibniz-Institut für Meereswissenschaften, IFM-GEOMAR, Düsternbrooker Weg 20, D-24105 Kiel, Germany.
authors.forename: Johannes F
authors.initials: JF
authors.lastname: Imhoff
authors.affiliation: Yunnan Institute of Microbiology, Yunnan University, Kunming, Yunnan 650091, PR China.
authors.forename: Cheng-Lin
authors.initials: CL
authors.lastname: Jiang
mesh_terms: D015373:Bacterial Typing Techniques; D002681:China; D004269:DNA, Bacterial / Q000235:genetics; D005227:Fatty Acids / Q000737:chemistry; D008969:Molecular Sequence Data; D009693:Nucleic Acid Hybridization; D010802:Phylogeny; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D054712:Salinity; D017422:Sequence Analysis, DNA; D012988:Soil Microbiology; D013302:Streptomyces / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification
chemical_list: D004269:DNA, Bacterial; D005227:Fatty Acids; D012336:RNA, Ribosomal, 16S