ArticleFrontiers in microbiology2015
Microbial metabolism of transparent exopolymer particles during the summer months along a eutrophic estuary system.
Article in Frontiers in microbiology, 2015. 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, 54 citations in OpenAlex.
- Unveiling the contribution of particle-associated non-cyanobacterial diazotrophs to NCommunications biology · 2025Article
- Production and characterization of novel marine black yeast's exopolysaccharide with potential antiradical and anticancer prospects.Microbial cell factories · 2024Article
- Exopolysaccharides from Marine Microbes: Source, Structure and Application.Marine drugs · 2022Review
- Contribution of Heterotrophic Diazotrophs to NFrontiers in microbiology · 2022Article
- Planktonic Aggregates as Hotspots for Heterotrophic Diazotrophy: The Plot Thickens.Frontiers in microbiology · 2022Review
- Metatranscriptome Library Preparation Influences Analyses of Viral Community Activity During a Brown Tide Bloom.Frontiers in microbiology · 2021Article
- Non-surface Attached Bacterial Aggregates: A Ubiquitous Third Lifestyle.Frontiers in microbiology · 2020Review
- Heterotrophic Nitrogen Fixation at the Hyper-Eutrophic Qishon River and Estuary System.Frontiers in microbiology · 2020Article
- Direct Detection of Heterotrophic Diazotrophs Associated with Planktonic Aggregates.Scientific reports · 2019Article
- DOP Stimulates Heterotrophic Bacterial Production in the Oligotrophic Southeastern Mediterranean Coastal Waters.Frontiers in microbiology · 2019Article
- Contribution of mono and polysaccharides to heterotrophic N2 fixation at the eastern Mediterranean coastline.Scientific reports · 2016Article
- The Temporal Dynamics of Coastal Phytoplankton and Bacterioplankton in the Eastern Mediterranean Sea.PloS one · 2015Article
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Authors and funding
2 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
This study explores the role of transparent exopolymer particles (TEP) as an additional carbon source for heterotrophic microbial activity in the eutrophic Qishon estuary. From the coastal station and upstream the estuary; TEP concentrations, β-glucosidase activity, bacterial production and abundance have gradually increased. TEP were often found as bio-aggregates, scaffolding algae, detritus matter and bacteria that likely formed "hotspots" for enhance microbial activity. To further demonstrate the link between TEP and heterotrophic bacterial activity, confined incubations with ambient and polysaccharide-enriched estuary water were carried out. Following polysaccharide addition, elevated (~50%) β-glucosidase activity rates were observed, leading to TEP hydrolysis. This newly formed bioavailable carbon resulted in significantly higher growth rates, with up to a 5-fold increase in heterotrophic bacterial biomass, comprising mostly high nucleic acid content bacteria. Taking together the findings from this research, we conclude that even in highly eutrophic environments heterotrophic bacteria may still be carbon limited. Further, TEP as a polysaccharide matrix can act as a metabolic surrogate, adding fresh bioavailable carbon through tight associations with bacteria in eutrophic ecosystems such as the Qishon estuary.
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