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© Research
Publication : Research in microbiology

Development and use of fluorescent 16S rRNA-targeted probes for the specific detection of Methylophaga species by in situ hybridization in marine sediments

Scientific Fields
Diseases
Organisms
Applications
Technique

Published in Research in microbiology - 01 Sep 2003

Janvier M, Regnault B, Grimont P

Link to Pubmed [PMID] – 14499934

Res. Microbiol. 2003 Sep;154(7):483-90

Methylotrophic bacteria are widespread in nature. They may play an important role in the cycling of carbon and in the metabolism of dimethylsulfide in a marine environment. Bacteria belonging to the genus Methylophaga are a unique group of aerobic, halophilic, non-methane-utilizing methylotrophs. Two 16S rRNA-targeted oligonucleotide probes were developed for the specific detection of Methylophaga species, marine methylobacteria, by fluorescence in situ hybridization. Probe MPH-730 was highly specific for all members of the genus Methylophaga while probe MPHm-994 targeted exclusively M. marina. The application of these probes were demonstrated by the detection of Methylophaga species in enrichment cultures from various marine sediments. All isolates recovered were visualized by using the genus specific probe MPH-730. The results were confirmed by 16S rDNA sequencing which demonstrated that all selected isolates belong to Methylophaga. Five isolates could be detected by the M. marina-specific probe MPHm-994 and were confirmed by rRNA gene restriction pattern (ribotyping). With the development of these specific probes, fluorescence in situ hybridization shows that the genus Methylophaga is widespread in marine samples.

http://www.ncbi.nlm.nih.gov/pubmed/14499934