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学科主题: Microbiology
题名: Actinomadura sediminis sp nov., a marine actinomycete isolated from mangrove sediment
作者: He, J ; Xu, Y ; Sahu, MK ; Tian, XP ; Nie, GX ; Xie, Q ; Zhang, S ; Sivakumar, K ; Li, WJ
通讯作者: oceanactino@gmail.com ; wjli@ynu.edu.cn
刊名: INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
发表日期: 2012
卷: 62, 页:1110-1116
部门归属: [He, Jie; Xu, Ying; Li, Wen-Jun] Yunnan Univ, Key Lab Microbial Divers SW China, Minist Educ, Kunming 650091, Peoples R China; [He, Jie; Xu, Ying; Li, Wen-Jun] Yunnan Univ, Lab Conservat & Utilizat Bioresources, Yunnan Inst Microbiol, Kunming 650091, Peoples R China; [Sahu, Maloy Kumar; Sivakumar, Kannan] Annamalai Univ, Fac Marine Sci, Ctr Adv Study Marine Biol, Parangipettai 608502, Tamil Nadu, India; [Tian, Xin-Peng; Zhang, Si] Chinese Acad Sci, CAS Key Lab Marine Bioresources Sustainable Utili, CAS Guangdong Key Lab Marine Mat Med, RNAM Ctr Marine Microbiol,S China Sea Inst Oceano, Guangzhou 510301, Guangdong, Peoples R China; [Nie, Guo-Xing] Henan Normal Univ, Coll Life Sci, Xinxiang 453007, Peoples R China; [Xie, Qiong] China Astronaut Res & Training Ctr, State Key Lab Space Med Fundamentals & Applicat, Beijing 100094, Peoples R China; [Li, Wen-Jun] Chinese Acad Sci, Key Lab Biogeog & Bioresource Arid Land, Xingjiang Inst Ecol & Geog, Urumqi 830011, Peoples R China
项目归属: LMB
摘要: In this study, the taxonomic position of an actinobacterium, strain YIM M 10931(T), which was isolated from a mangrove sediment sample collected in Dugong Creek, Little Andaman, India, was determined by a polyphasic approach. This Gram-positive, aerobic strain produced branched substrate mycelium and aerial hyphae, which differentiated into short, hooked or spiral spore chains. The organism contained meso-diaminopimelic acid as the diagnostic diamino acid in the cell-wall peptidoglycan. The whole cell sugars consisted of mannose, ribose, glucose, galactose and madurose. The cellular fatty acid profile mainly consisted of iso-C-16:0, 10-methyl C-18:0 and C-16:0. The quinone system was predominantly composed of MK-9(H-8) (45.5%) and MK-9(H-6) (39%). The phospholipids detected were diphosphatidylglycerol, phosphatidylglycerol, phosphatidylinositol mannoside, phosphatidylinositol and two unknown phospholipids. The organism showed a combination of morphological and chemotaxonomic properties typical of members of the genus Actinomadura. Moreover, phylogenetic analysis based on a 16S rRNA gene sequence generated from the strain identified its closest relatives as Actinomadura cremea DSM 43676(T) (98.4% sequence similarity), Actinomadura rifamycini DSM 43936(T) (97.4%) and Actinomadura apis IM17-1(T) (96.9%). It was obvious from the resulting phylogenetic trees that strain YIM M 10931(T) belongs to a distinct subclade within the evolutionary radiation of the genus Actinomadura. DNA-DNA hybridizations of strain YIM M 10931(T) with A. cremea DSM 43676(T) and A. rifamycini DSM 43936(T) were performed and further confirmed that the isolate represents a separate genomic species. Based on the phenotypic and genotypic characteristics presented, it is proposed that strain YIM M 10931(T) represents a novel species within the genus Actinomadura, for which the name Actinomadura sediminis sp. nov. is proposed; the type strain is YIM M 10931(T) (= CCTCC AA 2010009(T)= DSM 45500(T)).
语种: 英语
WOS记录号: WOS:000305367800016
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/9906
Appears in Collections:中科院海洋生物资源可持续利用重点实验室_期刊论文

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Recommended Citation:
He, J; Xu, Y; Sahu, MK; Tian, XP; Nie, GX; Xie, Q; Zhang, S; Sivakumar, K; Li, WJ.Actinomadura sediminis sp nov., a marine actinomycete isolated from mangrove sediment,INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY,2012,62():1110-1116
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