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Prochlorococcus Cells Rely on Microbial Interactions Rather than on Chlorotic Resting Stages To Survive Long-Term Nutrient Starvation
Many microorganisms produce resting cells with very low metabolic activity that allow them to survive phases of prolonged nutrient or energy stress. In cyanobacteria and some eukaryotic phytoplankton, the production of resting stages is accompanied by a loss of photosynthetic pigments, a process ter...
Autores principales: | , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Society for Microbiology
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7439483/ https://www.ncbi.nlm.nih.gov/pubmed/32788385 http://dx.doi.org/10.1128/mBio.01846-20 |
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author | Roth-Rosenberg, Dalit Aharonovich, Dikla Luzzatto-Knaan, Tal Vogts, Angela Zoccarato, Luca Eigemann, Falk Nago, Noam Grossart, Hans-Peter Voss, Maren Sher, Daniel |
author_facet | Roth-Rosenberg, Dalit Aharonovich, Dikla Luzzatto-Knaan, Tal Vogts, Angela Zoccarato, Luca Eigemann, Falk Nago, Noam Grossart, Hans-Peter Voss, Maren Sher, Daniel |
author_sort | Roth-Rosenberg, Dalit |
collection | PubMed |
description | Many microorganisms produce resting cells with very low metabolic activity that allow them to survive phases of prolonged nutrient or energy stress. In cyanobacteria and some eukaryotic phytoplankton, the production of resting stages is accompanied by a loss of photosynthetic pigments, a process termed chlorosis. Here, we show that a chlorosis-like process occurs under multiple stress conditions in axenic laboratory cultures of Prochlorococcus, the dominant phytoplankton linage in large regions of the oligotrophic ocean and a global key player in ocean biogeochemical cycles. In Prochlorococcus strain MIT9313, chlorotic cells show reduced metabolic activity, measured as C and N uptake by Nanoscale secondary ion mass spectrometry (NanoSIMS). However, unlike many other cyanobacteria, chlorotic Prochlorococcus cells are not viable and do not regrow under axenic conditions when transferred to new media. Nevertheless, cocultures with a heterotrophic bacterium, Alteromonas macleodii HOT1A3, allowed Prochlorococcus to survive nutrient starvation for months. We propose that reliance on co-occurring heterotrophic bacteria, rather than the ability to survive extended starvation as resting cells, underlies the ecological success of Prochlorococcus. |
format | Online Article Text |
id | pubmed-7439483 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | American Society for Microbiology |
record_format | MEDLINE/PubMed |
spelling | pubmed-74394832020-08-24 Prochlorococcus Cells Rely on Microbial Interactions Rather than on Chlorotic Resting Stages To Survive Long-Term Nutrient Starvation Roth-Rosenberg, Dalit Aharonovich, Dikla Luzzatto-Knaan, Tal Vogts, Angela Zoccarato, Luca Eigemann, Falk Nago, Noam Grossart, Hans-Peter Voss, Maren Sher, Daniel mBio Research Article Many microorganisms produce resting cells with very low metabolic activity that allow them to survive phases of prolonged nutrient or energy stress. In cyanobacteria and some eukaryotic phytoplankton, the production of resting stages is accompanied by a loss of photosynthetic pigments, a process termed chlorosis. Here, we show that a chlorosis-like process occurs under multiple stress conditions in axenic laboratory cultures of Prochlorococcus, the dominant phytoplankton linage in large regions of the oligotrophic ocean and a global key player in ocean biogeochemical cycles. In Prochlorococcus strain MIT9313, chlorotic cells show reduced metabolic activity, measured as C and N uptake by Nanoscale secondary ion mass spectrometry (NanoSIMS). However, unlike many other cyanobacteria, chlorotic Prochlorococcus cells are not viable and do not regrow under axenic conditions when transferred to new media. Nevertheless, cocultures with a heterotrophic bacterium, Alteromonas macleodii HOT1A3, allowed Prochlorococcus to survive nutrient starvation for months. We propose that reliance on co-occurring heterotrophic bacteria, rather than the ability to survive extended starvation as resting cells, underlies the ecological success of Prochlorococcus. American Society for Microbiology 2020-08-11 /pmc/articles/PMC7439483/ /pubmed/32788385 http://dx.doi.org/10.1128/mBio.01846-20 Text en Copyright © 2020 Roth-Rosenberg et al. https://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution 4.0 International license (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Research Article Roth-Rosenberg, Dalit Aharonovich, Dikla Luzzatto-Knaan, Tal Vogts, Angela Zoccarato, Luca Eigemann, Falk Nago, Noam Grossart, Hans-Peter Voss, Maren Sher, Daniel Prochlorococcus Cells Rely on Microbial Interactions Rather than on Chlorotic Resting Stages To Survive Long-Term Nutrient Starvation |
title | Prochlorococcus Cells Rely on Microbial Interactions Rather than on Chlorotic Resting Stages To Survive Long-Term Nutrient Starvation |
title_full | Prochlorococcus Cells Rely on Microbial Interactions Rather than on Chlorotic Resting Stages To Survive Long-Term Nutrient Starvation |
title_fullStr | Prochlorococcus Cells Rely on Microbial Interactions Rather than on Chlorotic Resting Stages To Survive Long-Term Nutrient Starvation |
title_full_unstemmed | Prochlorococcus Cells Rely on Microbial Interactions Rather than on Chlorotic Resting Stages To Survive Long-Term Nutrient Starvation |
title_short | Prochlorococcus Cells Rely on Microbial Interactions Rather than on Chlorotic Resting Stages To Survive Long-Term Nutrient Starvation |
title_sort | prochlorococcus cells rely on microbial interactions rather than on chlorotic resting stages to survive long-term nutrient starvation |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7439483/ https://www.ncbi.nlm.nih.gov/pubmed/32788385 http://dx.doi.org/10.1128/mBio.01846-20 |
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