【摘 要】
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During a previous bioprospecting of pharmaceutical actinomycetes in saline-alkali soil in Korla,Xinjiang,north-west China,strain 438HGGQ3-1T was isolated from a rhizosphere soil sample collected aroun
【机 构】
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Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, College of Life Scie
【出 处】
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第八届全国微生物资源学术暨国家微生物资源平台运行服务研讨会
论文部分内容阅读
During a previous bioprospecting of pharmaceutical actinomycetes in saline-alkali soil in Korla,Xinjiang,north-west China,strain 438HGGQ3-1T was isolated from a rhizosphere soil sample collected around the medicinal plant Lycium ruthenicum.The iaolate shared the highest levels similarity of 16S rRNA gene sequence with Salininema proteolyticum Miq-4T (99.80 %),Paraglycomyces xinjiangensis TRM 49201T (99.66 %) and Salilacibacter albus (96.00 %).Lower similarities (<93.54 %) were found with all other type strains in genera affiliated with family Glycomycetaceae.The isolate contained meso-diaminopimelic acid as the diagnostic diamino acid and glucose and ribose as the whole-cell sugars.The phospholipids consisted of phosphatidylethanolamine,diphosphatidylglycerol,phosphatidylglycerol,phosphati-dylinositol mannoside,phosphatidylinositol and two phosphoglycolipids.The major menaquinones were MK-9(H4),MK-10(H2) and MK-10(H4).The major fatty acids are anteiso-C15∶0,anteiso-C17∶0 and iso-C16∶0.The levels of DNA-DNArelatedness with S.proteolyticum IBRC-M 10908T (99.80 %) and P.xinjiangensis CCTCC AA 2013002T were all above 70 %,the cut-off value considered to be the threshold for the definition of genomic species.Based on the evidence from polyphasic taxonomic study,the isolate was identified as a strain of the species Salininema proteolyticum.
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