Low Abundance of Methanotrophs in Sediments of Shallow Boreal Coastal Zones With High Water Methane Concentrations.

ABSTRACT: Coastal zones are transitional areas between land and sea where large amounts of organic and inorganic carbon compounds are recycled by microbes. Especially shallow zones near land have been shown to be the main source for oceanic methane (CH₄) emissions. Water depth has been predicted as the best explanatory variable, which is related to CH₄ ebullition, but exactly how sediment methanotrophs mediates these emissions along water depth is unknown. Here, we investigated the relative abundance and RNA transcripts attributed to methane oxidation proteins of aerobic methanotrophs in the sediment of shallow coastal zones with high CH₄ concentrations within a depth gradient from 10-45 m. Field sampling consisted of collecting sediment (top 0-2 cm layer) from eight

SUBMITTER: Broman E 

PROVIDER: S-EPMC7362727 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature