Diversity of Oxygenase Genes from Methane- and Ammonia-Oxidizing Bacteria in the Eastern Snake River Plain Aquifer

PCR amplification, restriction fragment length polymorphism, and phylogenetic analysis of oxygenase genes were used for the characterization of in situ methane- and ammonia-oxidizing bacteria from free-living and attached communities in the Eastern Snake River Plain aquifer. The following three meth...

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Veröffentlicht in:Applied and Environmental Microbiology 2005-04, Vol.71 (4), p.2016-2025
Hauptverfasser: Erwin, Daniel P, Erickson, Issac K, Delwiche, Mark E, Colwell, Frederick S, Strap, Janice L, Crawford, Ronald L
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container_end_page 2025
container_issue 4
container_start_page 2016
container_title Applied and Environmental Microbiology
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creator Erwin, Daniel P
Erickson, Issac K
Delwiche, Mark E
Colwell, Frederick S
Strap, Janice L
Crawford, Ronald L
description PCR amplification, restriction fragment length polymorphism, and phylogenetic analysis of oxygenase genes were used for the characterization of in situ methane- and ammonia-oxidizing bacteria from free-living and attached communities in the Eastern Snake River Plain aquifer. The following three methane monooxygenase (MMO) PCR primer sets were used: A189-A682, which amplifies an internal region of both the pmoA gene of the MMO particulate form and the amoA gene of ammonia monooxygenase; A189-mb661, which specifically targets the pmoA gene; and mmoXA-mmoXB, which amplifies the mmoX gene of the MMO soluble form (sMMO). Whole-genome amplification (WGA) was used to amplify metagenomic DNA from each community to assess its applicability for generating unbiased metagenomic template DNA. The majority of sequences in each archive were related to oxygenases of type II-like methanotrophs of the genus METHYLOCYSTIS: A small subset of type I sequences found only in free-living communities possessed oxygenase genes that grouped nearest to Methylobacter and Methylomonas spp. Sequences similar to that of the amoA gene associated with ammonia-oxidizing bacteria (AOB) most closely matched a sequence from the uncultured bacterium BS870 but showed no substantial alignment to known cultured AOB. Based on these functional gene analyses, bacteria related to the type II methanotroph Methylocystis sp. were found to dominate both free-living and attached communities. Metagenomic DNA amplified by WGA showed characteristics similar to those of unamplified samples. Overall, numerous sMMO-like gene sequences that have been previously associated with high rates of trichloroethylene cometabolism were observed in both free-living and attached communities in this basaltic aquifer.
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source American Society for Microbiology; MEDLINE; PubMed Central; Alma/SFX Local Collection
subjects Ammonia
Ammonia - metabolism
ammonia monooxygenase
amoA gene
Aquifers
Bacteria
DNA, Bacterial - analysis
Freshwater
genes
Genetic diversity
Genetic Variation
Idaho
Methane
Methane - metabolism
methane monooxygenase
methanotrophs
Methylococcaceae - classification
Methylococcaceae - enzymology
Methylococcaceae - genetics
Methylocystaceae - classification
Methylocystaceae - enzymology
Methylocystaceae - genetics
Microbial Ecology
mmoX gene
molecular sequenc data
Nitrosomonadaceae
nucleotide sequences
Oxidation
Oxidation-Reduction
Oxidoreductases - genetics
Oxidoreductases - metabolism
oxygenases
Oxygenases - genetics
Oxygenases - metabolism
Phylogeny
Polymerase Chain Reaction
Polymorphism, Restriction Fragment Length
Quantitative genetics
restriction fragment length polymorphism
Rivers - microbiology
Sequence Analysis, DNA
Water Supply
title Diversity of Oxygenase Genes from Methane- and Ammonia-Oxidizing Bacteria in the Eastern Snake River Plain Aquifer
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