Purple sulfur bacteria fix N2 via molybdenum-nitrogenase in a low molybdenum Proterozoic ocean analogue.
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ABSTRACT:
SUBMITTER: Philippi M
PROVIDER: S-EPMC8346585 | biostudies-literature | 2021 Aug
REPOSITORIES: biostudies-literature
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Purple sulfur bacteria fix N<sub>2</sub> via molybdenum-nitrogenase in a low molybdenum Proterozoic ocean analogue.
Philippi Miriam M Kitzinger Katharina K Berg Jasmine S JS Tschitschko Bernhard B Kidane Abiel T AT Littmann Sten S Marchant Hannah K HK Storelli Nicola N Winkel Lenny H E LHE Schubert Carsten J CJ Mohr Wiebke W Kuypers Marcel M M MMM
Nature communications 20210806 1
Biological N<sub>2</sub> fixation was key to the expansion of life on early Earth. The N<sub>2</sub>-fixing microorganisms and the nitrogenase type used in the Proterozoic are unknown, although it has been proposed that the canonical molybdenum-nitrogenase was not used due to low molybdenum availability. We investigate N<sub>2</sub> fixation in Lake Cadagno, an analogue system to the sulfidic Proterozoic continental margins, using a combination of biogeochemical, molecular and single cell techni ...[more]
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