Please use this identifier to cite or link to this item: https://doi.org/10.1021/es0701614
Title: Community structure analysis of reverse osmosis membrane biofilms and the significance of Rhizobiales bacteria in biofouling
Authors: Chee, M.P.
Liu, W.-T. 
Issue Date: 1-Jul-2007
Source: Chee, M.P., Liu, W.-T. (2007-07-01). Community structure analysis of reverse osmosis membrane biofilms and the significance of Rhizobiales bacteria in biofouling. Environmental Science and Technology 41 (13) : 4728-4734. ScholarBank@NUS Repository. https://doi.org/10.1021/es0701614
Abstract: The biofilm community structure of a biofouled reverse osmosis (RO) membrane was examined using a polyphasic approach, and the dominant phylotypes retrieved were related to the order Rhizobiales, a group of bacteria that is hitherto not implicated in membrane biofouling. A comparison with two other membrane biofilms using T-RFLP fingerprinting also revealed the dominance of Rhizobiales organisms. When pure culture RO biofilm isolates were cultivated aerobically in BIOLOG microplates, most Rhizobiales were metabolically versatile in their choice of carbon substrates. Nitrate reduction was observed in five RO isolates related to Castellaniella, Ochrobactrum, Stenotrophomonas, and Xanthobacter. Many of the key Rhizobiales genera including Bosea, Uchrobactrum, Shinella, and Rhodopseudomonas were detected by PCR to contain the nirK gene responsible for nitrite reductase activity. These findings suggest that Rhizobiales organisms are ecologically significant in membrane biofilm communities under both aerobic and anoxic conditions and may be responsible for biofouling in membrane separation systems. © 2007 American Chemical Society.
Source Title: Environmental Science and Technology
URI: http://scholarbank.nus.edu.sg/handle/10635/67625
ISSN: 0013936X
DOI: 10.1021/es0701614
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

51
checked on Dec 7, 2017

WEB OF SCIENCETM
Citations

52
checked on Nov 23, 2017

Page view(s)

31
checked on Dec 11, 2017

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.