Publications by authors named "Greg Gavelis"

Article Synopsis
  • The study highlights the challenges in measuring microbial process rates and linking them to specific microorganisms in low-biomass environments, focusing on sulfate reduction and methanogenesis.
  • Researchers utilized the RedoxSensor™ Green probe to assess microbial activity in the low-cell-density groundwater of Death Valley, revealing active sulfate-reducing bacteria, especially Desulforudis audaxviator, using acetate and hydrogen as electron donors.
  • The findings demonstrate the effectiveness of this method for understanding single-cell anaerobic metabolism and establishing connections between genetic information and microbial functions in challenging environments.
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Members of the genus are found in diverse environments from marine, freshwaters, permafrost to hot springs. can grow in a wide range of temperature, pH, salinity, and heavy-metal concentrations. We characterized strain RW2 isolated from a permanently cold freshwater microbialite in Pavilion Lake, British Columbia using metabolic assays, genomics, comparative genomics, phylogenetics, and fatty acid composition.

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Members of the bacterial genus are globally distributed and found across environments so highly diverse that they include forests, deserts, and coal mines, as well as in potatoes and cheese. Despite how widely occurs, the extent of its physiology, genomes, and potential roles in the environment are poorly understood. Here we use whole-genome analysis, chemotaxonomic markers, morphology, and 16S rRNA gene phylogeny to describe a new isolate of the genus from freshwater microbialites in Pavilion Lake, British Columbia, Canada.

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