NDLI: Diversity and novelty of actinobacteria in Arctic marine sediments.

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Diversity and novelty of actinobacteria in Arctic marine sediments.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Zhang, Gaiyun Cao, Tingfeng Ying, Jianxi Yang, Yanliu Ma, Lingqi
Spatial Coverage	Arctic Regions
Description	Author Affiliation: Zhang G ( Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, State Oceanic Administration, Xiamen, 361005, People's Republic of China, zhgyun@tio.org.cn.)
Abstract	The actinobacterial diversity of Arctic marine sediments was investigated using culture-dependent and culture-independent approaches. A total of 152 strains were isolated from seven different media; 18 isolates were selected for phylogenetic analysis on the basis of their 16S rRNA gene sequences. Results showed that the 18 isolates belonged to a potential novel genus and 10 known genera including Actinotalea, Arthrobacter, Brachybacterium, Brevibacterium, Kocuria, Kytococcus, Microbacterium, Micrococcus, Mycobacterium, and Pseudonocardia. Subsequently, 172 rDNA clones were selected by restriction fragment length polymorphism analysis from 692 positive clones within four actinobacteria-specific 16S rDNA libraries of Arctic marine sediments, and then these 172 clones were sequenced. In total, 67 phylotypes were clustered in 11 known genera of actinobacteria including Agrococcus, Cellulomonas, Demequina, Iamia, Ilumatobacter, Janibacter, Kocuria, Microbacterium, Phycicoccus, Propionibacterium, and Pseudonocardia, along with other, unidentified actinobacterial clones. Based on the detection of a substantial number of uncultured phylotypes showing low BLAST identities (<95 %), this study confirms that Arctic marine environments harbour highly diverse actinobacterial communities, many of which appear to be novel, uncultured species.
File Format	HTM / HTML
ISSN	00036072
Issue Number	4
Volume Number	105
e-ISSN	15729699
Journal	Antonie van Leeuwenhoek
Language	English
Publisher	Springer
Publisher Date	2014-04-01
Publisher Place	Netherlands
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Discipline Microbiology Discipline Immunology Actinobacteria Classification Isolation & Purification Biodiversity Geologic Sediments Microbiology Genetics Arctic Regions Cluster Analysis Dna, Bacterial Chemistry Dna, Ribosomal Molecular Sequence Data Phylogeny Polymorphism, Restriction Fragment Length Rna, Ribosomal, 16s Sequence Analysis, Dna Journal Article Research Support, Non-u.s. Gov't
Content Type	Text
Resource Type	Article
Subject	Medicine Molecular Biology Microbiology

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