Search for dissertations about: "jonathan zehr"

Found 1 swedish dissertation containing the words jonathan zehr.

2. 1. Distribution and activity of nitrogen-fixing bacteria in marine and estuarine waters

   Author : Hanna Farnelid; Lasse Riemann; Jonathan Zehr; Linnéuniversitetet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; 454-pyrosequencing; diazotrophs; heterotrophic bacteria; marine bacteria; marine microbial ecology; microbiology; nifH; nitrogenase; nitrogen fixation; PCR; qPCR; Mikrobiologi; Microbiology;

   Abstract : In aquatic environments the availability of nitrogen (N) generally limits primary production. N2-fixing prokaryotes (diazotrophs) can convert N2 gas into ammonium and provide significant input of N into the oceans. Cyanobacteria are thought to be the main N2-fixers but diazotrophs also include a wide range of heterotrophic bacteria. READ MORE