Candidatus Nealsonbacteria” Are Likely Biomass Recycling Ectosymbionts of Methanogenic Archaea in a Stable Benzene-Degrading Enrichment Culture

Author:

Chen Xu1,Molenda Olivia1,Brown Christopher T.23,Toth Courtney R. A.1ORCID,Guo Shen1,Luo Fei1,Howe Jane4,Nesbø Camilla L.1,He Christine5,Montabana Elizabeth A.26,Cate Jamie H. D.267,Banfield Jillian F.5689ORCID,Edwards Elizabeth A.1ORCID

Affiliation:

1. Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Ontario, Canada

2. Department of Molecular and Cell Biology, University of California, Berkeley, California, USA

3. California Institute for Quantitative Biosciences, University of California, Berkeley, California, USA

4. Department of Materials Science and Engineering, University of Toronto, Toronto, Ontario, Canada

5. Innovative Genomics Institute, University of California, Berkeley, California, USA

6. Molecular Biophysics and Integrated Bioimaging, Lawrence Berkeley National Laboratory, Berkeley, California, USA

7. Department of Chemistry, University of California, Berkeley, California, USA

8. Department of Earth and Planetary Science, University of California, Berkeley, California, USA

9. Environmental Science, Policy and Management, University of California, Berkeley, California, USA

Abstract

An anaerobic microbial enrichment culture was used to study members of candidate phyla that are difficult to grow in the lab. We were able to visualize tiny “ Candidatus Nealsonbacteria” cells attached to a large Methanothrix cell, revealing a novel episymbiosis.

Funder

Symbiosis model systems Initiative

Genome Canada

HHS | National Institutes of Health

Life Sciences Research Foundation

Publisher

American Society for Microbiology

Subject

Ecology,Applied Microbiology and Biotechnology,Food Science,Biotechnology

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