ArticleFrontiers in microbiology2014
Feedbacks between protistan single-cell activity and bacterial physiological structure reinforce the predator/prey link in microbial foodwebs.
Article in Frontiers in microbiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed.
- Changes in the Top-Down Control of Planktonic Bacteria in Response to Nutrient Addition and Warming in the Red Sea.Environmental microbiology reports · 2025Article
- Large diversity in the O-chain biosynthetic cluster within populations of Pelagibacterales.mBio · 2025Article
- The impact of elevated temperature and salinity on microbial communities and food selectivity in heterotrophic nanoflagellates in the Boye River.ISME communications · 2025Article
- Effects of phytoplankton, viral communities, and warming on free-living and particle-associated marine prokaryotic community structure.Nature communications · 2022Article
- Top-Down Controls of Bacterial Metabolism: A Case Study from a Temperate Freshwater Lake Ecosystem.Microorganisms · 2022Article
- Article
- Elevated Contribution of Low Nucleic Acid Prokaryotes and Viral Lysis to the Prokaryotic Community Along the Nutrient Gradient From an Estuary to Open Ocean Transect.Frontiers in microbiology · 2020Article
- Regulation of Low and High Nucleic Acid Fluorescent Heterotrophic Prokaryote Subpopulations and Links to Viral-Induced Mortality Within Natural Prokaryote-Virus Communities.Microbial ecology · 2020Article
- Differential Response of Cafeteria roenbergensis to Different Bacterial and Archaeal Prey Characteristics.Microbial ecology · 2019Article
- Effects of Bacillus cereus Endospores on Free-Living Protist Growth.Microbial ecology · 2017Article
- Some Mixotrophic Flagellate Species Selectively Graze on Archaea.Applied and environmental microbiology · 2017Article
- Marine bacterial community structure resilience to changes in protist predation under phytoplankton bloom conditions.The ISME journal · 2016Article
Corrections and comments
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Authors and funding
2 authors.
Funding
Abstract
The trophic interactions between bacteria and their main predators, the heterotrophic nanoflagellates (HNFs), play a key role in the structuring and functioning of aquatic microbial food webs. Grazing regulation of bacterial communities, both of biomass and community structure, have been frequently reported. Additionally, bottom-up responses of the HNF at the population level (numerical responses) have also been extensively described. However, the functional response of HNF at the single-cell level has not been well explored. In this study, we concurrently measured the physiological structure of bacterial communities and HNF single-cell activities during re-growth cultures of natural aquatic communities. We found that changes in the abundance and proportion of the preferred, highly active bacterial prey, caused by the feeding activity of their predators (HNF), induced a negative feedback effect on the single-cell activity of these HNF. These shifts in the specific cellular activity of HNF occur at a much shorter time scale than population level shifts in flagellate abundance, and offer a complementary mechanism to explain not only the tight coupling between bacteria and HNF, but also the relative constancy of bacterial abundance in aquatic ecosystems.
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