Detection of active butyrate-degrading microorganisms in methanogenic sludges by RNA-based stable isotope probing

Appl Environ Microbiol. 2008 Jun;74(11):3610-4. doi: 10.1128/AEM.00045-08. Epub 2008 Apr 11.

Abstract

Butyrate-degrading bacteria in four methanogenic sludges were studied by RNA-based stable isotope probing. Bacterial populations in the (13)C-labeled rRNA fractions were distinct from unlabeled fractions, and Syntrophaceae species, Tepidanaerobacter sp., and Clostridium spp. dominated. These results suggest that diverse microbes were active in butyrate degradation under methanogenic conditions.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Butyrates / metabolism*
  • Carbon Isotopes / metabolism
  • DNA, Bacterial / chemistry
  • DNA, Bacterial / genetics
  • DNA, Ribosomal / chemistry
  • DNA, Ribosomal / genetics
  • Deltaproteobacteria / classification*
  • Deltaproteobacteria / isolation & purification*
  • Gram-Positive Bacteria / classification*
  • Gram-Positive Bacteria / isolation & purification*
  • Isotope Labeling
  • Methane / metabolism*
  • Molecular Sequence Data
  • RNA, Bacterial / metabolism
  • RNA, Ribosomal, 16S / genetics
  • Sequence Analysis, DNA
  • Sewage / microbiology*

Substances

  • Butyrates
  • Carbon Isotopes
  • DNA, Bacterial
  • DNA, Ribosomal
  • RNA, Bacterial
  • RNA, Ribosomal, 16S
  • Sewage
  • Methane

Associated data

  • GENBANK/AB330831
  • GENBANK/AB330832
  • GENBANK/AB330833
  • GENBANK/AB330834
  • GENBANK/AB330835
  • GENBANK/AB330836
  • GENBANK/AB330837
  • GENBANK/AB330838
  • GENBANK/AB330839
  • GENBANK/AB330840
  • GENBANK/AB330841
  • GENBANK/AB330842
  • GENBANK/AB330843
  • GENBANK/AB330844
  • GENBANK/AB330845
  • GENBANK/AB330846
  • GENBANK/AB330847
  • GENBANK/AB330848
  • GENBANK/AB330849
  • GENBANK/AB330850
  • GENBANK/AB330851
  • GENBANK/AB330852
  • GENBANK/AB330853
  • GENBANK/AB330854
  • GENBANK/AB330855
  • GENBANK/AB330856
  • GENBANK/AB330857
  • GENBANK/AB330858
  • GENBANK/AB330859
  • GENBANK/AB330860
  • GENBANK/AB330861
  • GENBANK/AB330862
  • GENBANK/AB330863
  • GENBANK/AB330864
  • GENBANK/AB330865
  • GENBANK/AB330866
  • GENBANK/AB330867
  • GENBANK/AB330868
  • GENBANK/AB330869
  • GENBANK/AB330870
  • GENBANK/AB330871