Dissimilatory sulfate reduction in the archaeon ‘Candidatus Vulcanisaeta moutnovskia’ sheds light on the evolution of sulfur metabolism

Autor(en)
Nikolay A. Chernyh, Sinje Neukirchen, Evgenii N. Frolov, Filipa L. Sousa, Margarita L. Miroshnichenko, Alexander Y. Merkel, Nikolay V. Pimenov, Dimitry Y. Sorokin, Sergio Ciordia, María Carmen Mena, Manuel Ferrer, Peter N. Golyshin, Alexander V. Lebedinsky, Inês A. Cardoso Pereira, Elizaveta A. Bonch-Osmolovskaya
Abstrakt

Dissimilatory sulfate reduction (DSR)—an important reaction in the biogeochemical sulfur cycle—has been dated to the Palaeoarchaean using geological evidence, but its evolutionary history is poorly understood. Several lineages of bacteria carry out DSR, but in archaea only Archaeoglobus, which acquired DSR genes from bacteria, has been proven to catalyse this reaction. We investigated substantial rates of sulfate reduction in acidic hyperthermal terrestrial springs of the Kamchatka Peninsula and attributed DSR in this environment to Crenarchaeota in the Vulcanisaeta genus. Community profiling, coupled with radioisotope and growth experiments and proteomics, confirmed DSR by ‘Candidatus Vulcanisaeta moutnovskia’, which has all of the required genes. Other cultivated Thermoproteaceae were briefly reported to use sulfate for respiration but we were unable to detect DSR in these isolates. Phylogenetic studies suggest that DSR is rare in archaea and that it originated in Vulcanisaeta, independent of Archaeoglobus, by separate acquisition of qmoABC genes phylogenetically related to bacterial hdrA genes.

Organisation(en)
Department für Funktionelle und Evolutionäre Ökologie
Externe Organisation(en)
Russian Academy of Sciences, Lomonosov Moscow State University (MSU), Proteomics Facility, Centro Nacional de Biotecnología, CSIC, Madrid, Spain, Institute of Catalysis, CSIC, Madrid, Spain, Bangor University, Universidade Nova de Lisboa
Journal
Nature Microbiology
ISSN
2058-5276
DOI
https://doi.org/10.1038/s41564-020-0776-z
Publikationsdatum
08-2020
Peer-reviewed
Ja
ÖFOS 2012
106022 Mikrobiologie
ASJC Scopus Sachgebiete
Microbiology
Link zum Portal
https://ucris.univie.ac.at/portal/de/publications/dissimilatory-sulfate-reduction-in-the-archaeon-candidatus-vulcanisaeta-moutnovskia-sheds-light-on-the-evolution-of-sulfur-metabolism(26dc3cde-8603-4645-906f-c496d6cfdf14).html