NDLI: Diversity of bacteria and mycobacteria in biofilms of two urban drinking water distribution systems.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Liu, Ruyin Yu, Zhisheng Zhang, Hongxun Yang, Min Shi, Baoyou Liu, Xinchun
Spatial Coverage	China
Description	Author Affiliation: Liu R ( College of Environmental and Resource Sciences, Graduate University of Chinese Academy of Sciences, 100049 Beijing, People's Republic of China.)
Abstract	In this study, to give insight into the bacterial diversity of biofilms from full-scale drinking water distribution systems (DWDSs), the bacterial community compositions of biofilms from two urban DWDSs (Guangzhou and Beijing, China) were determined using a 16S rRNA gene library technique. Meanwhile, the occurrence and diversity of mycobacteria were also analyzed by a Mycobacterium -specific hsp gene assay. The biofilms from the full-scale DWDSs have complex bacterial populations. Proteobacteria was the common and predominant group in all biofilm samples, in agreement with previous reports. The community structures of bacteria at the three sites in Guangzhou DWDS were significantly different, despite the similar physicochemical properties of portable water. Some abundant and peculiar bacterial phylotypes were noteworthy, including Methylophilus , Massilia, and Planomicrobium , members of which are rarely found in DWDSs and their roles in DWDS biofilms are still unclear. The diversity of Mycobacterium species in biofilm samples was rather low. Mycobacterium arupense and Mycobacterium gordonae were the primary Mycobacterium species in Guangzhou and Beijing biofilms, respectively, indicating that M. arupense may be more resistant to chloride than M. gordonae.
File Format	HTM / HTML
ISSN	00084166
e-ISSN	14803275
Journal	Canadian Journal of Microbiology
Issue Number	3
Volume Number	58
Language	English
Publisher	Canadian Science Publishing
Publisher Date	2012-03-01
Publisher Place	Canada
Access Restriction	Open
Subject Keyword	Discipline Microbiology Bacterial Physiological Phenomena Biofilms Drinking Water Microbiology Environmental Microbiology Mycobacterium Physiology Water Supply Bacteria Classification Genetics Bacterial Load Biodiversity Phylogeny Principal Component Analysis Rna, Ribosomal, 16s Research Support, Non-u.s. Gov't
Content Type	Text
Resource Type	Article
Subject	Genetics Medicine Molecular Biology Immunology Microbiology Applied Microbiology and Biotechnology

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