Isolation and characterization of novel halotolerant and/or halophilic denitrifying bacteria with versatile metabolic pathways for the degradation of trimethylamine

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Title
Isolation and characterization of novel halotolerant and/or halophilic denitrifying bacteria with versatile metabolic pathways for the degradation of trimethylamine
Author(s)
Song-Gun Kim; Hee Sung Bae; Hee Mock Oh; S T Lee
Bibliographic Citation
FEMS Microbiology Letters, vol. 225, no. 2, pp. 263-269
Publication Year
2003
Abstract
Four denitrifying bacteria capable of degrading trimethylamine under both aerobic and denitrifying conditions were newly isolated from coastal sediments and wastewater contaminated by marine water. All strains were in α-Proteobacteria. Strain GP43 was classified as a member of genus Paracoccus, and strain PH32, PH34 and GRP21 were novel organisms with remote phylogenetic position from other genus α-Proteobacteria. Among these four strains were the halophilic strains PH32, PH34 and GRP21, which did not grow in the absence of sodium chloride in culture medium. Cells grown under denitrifying conditions possessed trimethylamine dehydrogenase while cells grown aerobically possessed two different enzymes for oxidation of trimethylamine, trimethylamine dehydrogenase and trimethylamine monooxygenase. The newly isolated strain PH32, PH34 and GRP21 may be the first halophilic bacteria to degrade trimethylamine under denitrifying conditions.
Keyword
TrimethylamineAnaerobic degradationDenitrifying bacteria
ISSN
0378-1097
Publisher
Oxford Univ Press
DOI
http://dx.doi.org/10.1016/S0378-1097(03)00530-5
Type
Article
Appears in Collections:
Jeonbuk Branch Institute > Biological Resource Center > 1. Journal Articles
Synthetic Biology and Bioengineering Research Institute > Cell Factory Research Center > 1. Journal Articles
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