Saccharopolyspora griseoalba sp. nov., a novel actinomycete isolated from the Dead Sea

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• 作者：Yingying Jiang ; Xiaomin Wei ; Xiu Chen ; Yi Jiang ; Quanhong Xue…
• 关键词：Halotolerant actinomycete ; Saccharopolyspora griseoalba sp. nov. ; Saccharopolyspora ; Polyphasic taxonomy
• 刊名：Antonie van Leeuwenhoek
• 出版年：2016
• 出版时间：December 2016
• 年：2016
• 卷：109
• 期：12
• 页码：1635-1641
• 全文大小：500 KB
• 刊物类别：Biomedical and Life Sciences
• 刊物主题：Life Sciences
  Microbiology
  Medical Microbiology
  Plant Sciences
  Soil Science and Conservation
  
• 出版者：Springer Netherlands
• ISSN：1572-9699
• 卷排序：109

文摘

A novel halotolerant actinomycete, designated strain AFM 10238T, was isolated from a sediment sample collected from the Dead Sea of Israel. The isolate grew at 15–45 °C, pH 6–12 and with 0–15 % (w/v) NaCl. Strain AFM 10238T contains meso-diaminopimelic acid as cell wall diamino acid, and galactose and arabinose as the whole cell sugars. The major polar lipids are phosphatidylcholine, phosphatidylglycerol, and diphosphatidylglycerol. Major fatty acids are iso-C_16:0, iso-C_17:0, iso-C_15:0, anteiso-C_17:0 and C_17:1ω8c. MK-9(H₄) is the predominant menaquinone and the DNA G + C content is 72.7 mol%. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain AFM10238T belongs to the genus Saccharopolyspora. The 16S rRNA gene sequence similarity between strain AFM 10238T and its close neighbours, Saccharopolyspora halophila YIM 90500T, Saccharopolyspora spinosa DSM 44228T, Saccharopolyspora dendranthemae KLBMP 1305T and Saccharopolyspora cebuensis DSM 45019T were 98.2, 97.2, 97.1 and 97.0 %, respectively. Sequence similarities to other type strains of this genus were below 97 %. DNA–DNA relatedness data, together with phenotypic and chemotaxonomic differences, clearly distinguished the isolate from its close neighbours. On the basis of the data from this polyphasic analysis, a novel species Saccharopolyspora griseoalba sp. nov. is proposed. The type strain is AFM 10238T (= DSM 46,663 = CGMCC 4.7124).