Skip to main content

Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript.

  • Research Briefing
  • Published:

A divergent bacterium lives in association with bacterivorous protists in the ocean

Marine protists abound, but are challenging to study, and their interactions with other microbes in nature remain largely unknown. We captured wild predatory protists (choanoflagellates) and discovered a divergent, obligately co-associated bacterial group that lives by extracting resources from these predators.

This is a preview of subscription content, access via your institution

Access options

Buy this article

Prices may be subject to local taxes which are calculated during checkout

Fig. 1: The Comchoano bacterial lineage.

References

  1. Worden, A. Z. et al. Rethinking the marine carbon cycle: factoring in the multifarious lifestyles of microbes. Science https://doi.org/10.1126/science.1257594 (2015). An article that presents the lifestyles, ecological roles and overlooked behaviours of marine protists.

    Article  PubMed  Google Scholar 

  2. Needham, D. M. et al. A distinct lineage of giant viruses brings a rhodopsin photosystem to unicellular marine predators. Proc. Natl Acad. Sci. USA 116, 20574–20583 (2019). This paper reports the discovery and genome content of the first giant virus known to infect choanoflagellates.

    Article  CAS  Google Scholar 

  3. Wideman, J. G. et al. Unexpected mitochondrial genome diversity revealed by targeted single-cell genomics of heterotrophic flagellated protists. Nat. Microbiol. 5, 154–165 (2020). This study highlights the dynamic nature of the mitochondrial genome evolution through the lens of sequences from uncultivated marine protists.

    Article  CAS  Google Scholar 

  4. Schön, M. E. et al. Single cell genomics reveals plastid-lacking Picozoa are close relatives of red algae. Nat. Commun. 12, 6651 (2021). This article reports single-cell genomes from multiple marine samples and sorting approaches, and demonstrates the phylogenomic position of the uncultivated Picozoa.

    Article  Google Scholar 

  5. Parks, D. H. et al. A standardized bacterial taxonomy based on genome phylogeny substantially revises the tree of life. Nat. Biotechnol. 36, 996–1004 (2018). This article implements genome-based phylogenetics to identify and classify multiple unique uncultivated lineages of bacteria.

    Article  CAS  Google Scholar 

Download references

Additional information

Publisher’s note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

This is a summary of: Needham, D. M. et al. The microbiome of a bacterivorous marine choanoflagellate contains a resource-demanding obligate bacterial associate. Nat. Microbiol. https://doi.org/10.1038/s41564-022-01174-0 (2022).

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

A divergent bacterium lives in association with bacterivorous protists in the ocean. Nat Microbiol 7, 1335–1336 (2022). https://doi.org/10.1038/s41564-022-01199-5

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1038/s41564-022-01199-5

Search

Quick links

Nature Briefing Microbiology

Sign up for the Nature Briefing: Microbiology newsletter — what matters in microbiology research, free to your inbox weekly.

Get the most important science stories of the day, free in your inbox. Sign up for Nature Briefing: Microbiology