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Jellyfish detritus supports niche partitioning and metabolic interactions among pelagic marine bacteria [Elektronski vir]Tinta, Tinkara ...Background: Jellyfsh blooms represent a signifcant but largely overlooked source of labile organic matter (jelly-OM) in the ocean, characterized by a high protein content. Decaying jellyfsh are ... important carriers for carbon export to the ocean’s interior. To accurately incorporate them into biogeochemical models, the interactions between microbes and jelly-OM have yet to be fully characterized. We conducted jelly-OM enrichment experiments in microcosms to simulate the scenario experienced by the coastal pelagic microbiome after the decay of a jellyfsh bloom. We combined metagenomics, endo- and exo-metaproteomic approaches to obtain a mechanistic understanding on the metabolic network operated by the jelly-OM degrading bacterial consortium. Results: Our analysis revealed that OM released during the decay of jellyfsh blooms triggers a rapid shufing of the taxonomic and functional profle of the pelagic bacterial community, resulting in a signifcant enrichment of protein/amino acid catabolism-related enzymes in the jelly-OM degrading community dominated by Pseudoalteromonadaceae, Alteromonadaceae and Vibrionaceae, compared to unamended control treatments. In accordance with the proteinaceous character of jelly-OM, Pseudoalteromonadaceae synthesized and excreted enzymes associated with proteolysis, while Alteromonadaceae contributed to extracellular hydrolysis of complex carbohydrates and organophosphorus compounds. In contrast, Vibrionaceae synthesized transporter proteins for peptides, amino acids and carbohydrates, exhibiting a cheater-type lifestyle, i.e. benefting from public goods released by others. In the late stage of jelly-OM degradation, Rhodobacteraceae and Alteromonadaceae became dominant, growing on jelly-OM left-overs or bacterial debris, potentially contributing to the accumulation of dissolved organic nitrogen compounds and inorganic nutrients, following the decay of jellyfsh blooms. Conclusions: Our fndings indicate that specifc chemical and metabolic fngerprints associated with decaying jellyfsh blooms are substantially diferent to those previously associated with decaying phytoplankton blooms, potentially altering the functioning and biogeochemistry of marine systems. We show that decaying jellyfsh blooms are associated with the enrichment in extracellular collagenolytic bacterial proteases, which could act as virulence factors in human and marine organisms’ disease, with possible implications for marine ecosystem services. Our study also provides novel insights into niche partitioning and metabolic interactions among key jelly-OM degradersSource: Microbiome [Elektronski vir]. - ISSN 2049-2618 (Vol. 11, art. no. 156, 2023, str. [1]-22)Type of material - e-article ; adult, seriousPublish date - 2023Language - englishCOBISS.SI-ID - 160881667
Author
Tinta, Tinkara |
Zhao, Zihao |
Bayer, Barbara |
Herndl, Gerhard J.
Topics
jellyfish detritus |
microbial consortia |
metagenomics |
metaproteomics |
exoproteomics
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Author | Tinta, Tinkara ... |
Title | Jellyfish detritus supports niche partitioning and metabolic interactions among pelagic marine bacteria [Elektronski vir] |
Publication date | 2023-07-21 |
COBISS.SI-ID | 160881667 |
Publication version in repository | Publisher's version |
Publication licence | Creative Commons Attribution 4.0 International |
Embargo | Immediate publication for public |
Project(s) from which the publication was funded
Title | Acronym | Project ID | Funder |
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Vpliv razpada masovne populacije invazivne rebrače na mikrobno združbo obalnega morja - od molekul do ekosistema - celosten interdisciplinarni pristop | J7-2599-2020 |
Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije |
|
Microbial Degradation of Jellyfish-Derived Substrates | MIDAS | 793778 |
European Commission |
Raziskave obalnega morja | P1-0237-2020 |
Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije |
|
Decay of an invasive ctenophore bloom | I 4978 |
Austrian Science Fund (FWF) |
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Costs of publication
Cost type | Total cost | Payments |
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APC – Article Processing Charge | 4568.90 € |
4568.90 € : Inštitut za biologijo |
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Tinta, Tinkara | 29618 |
Zhao, Zihao | ![]() |
Bayer, Barbara | ![]() |
Herndl, Gerhard J. | ![]() |
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