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Title:Bacterial degradation of ctenophore Mnemiopsis leidyi organic matter
Authors:ID Fadeev, Eduard (Author)
ID Hennenfeind, Jennifer H. (Author)
ID Amano, Chie (Author)
ID Zhao, Zihao (Author)
ID Klun, Katja (Author)
ID Herndl, Gerhard J. (Author)
ID Tinta, Tinkara (Author)
Files:URL URL - Source URL, visit https://doi.org/10.1128/msystems.01264-23
 
.pdf PDF - Presentation file, download (2,32 MB)
MD5: C7B7DFD10F1A1A0BFE5223C40E805BBB
 
Language:English
Typology:1.01 - Original Scientific Article
Organization:Logo NIB - National Institute of Biology
Abstract:Blooms of gelatinous zooplankton, an important source of protein-rich biomass in coastal waters, often collapse rapidly, releasing large amounts of labile detrital organic matter (OM) into the surrounding water. Although these blooms have the potential to cause major perturbations in the marine ecosystem, their effects on the microbial community and hence on the biogeochemical cycles have yet to be elucidated. We conducted microcosm experiments simulating the scenario experienced by coastal bacterial communities after the decay of a ctenophore (Mnemiopsis leidyi) bloom in the northern Adriatic Sea. Within 24 h, a rapid response of bacterial communities to the M. leidyi OM was observed, characterized by elevated bacterial biomass production and respiration rates. However, compared to our previous microcosm study of jellyfish (Aurelia aurita s.l.), M. leidyi OM degradation was characterized by significantly lower bacterial growth efficiency, meaning that the carbon stored in the OM was mostly respired. Combined metagenomic and metaproteomic analysis indicated that the degradation activity was mainly performed by Pseudoalteromonas, producing a large amount of proteolytic extracellular enzymes and exhibiting high metabolic activity. Interestingly, the reconstructed metagenome-assembled genome (MAG) of Pseudoalteromonas phenolica was almost identical (average nucleotide identity >99%) to the MAG previously reconstructed in our A. aurita microcosm study, despite the fundamental genetic and biochemical differences of the two gelatinous zooplankton species. Taken together, our data suggest that blooms of different gelatinous zooplankton are likely triggering a consistent response from natural bacterial communities, with specific bacterial lineages driving the remineralization of the gelatinous OM.
Keywords:jellyfish, proteases, bacterioplankton, ocean biogeochemistry
Publication version:Version of Record
Publication date:23.01.2024
Year of publishing:2024
Number of pages:str. 1-22
Numbering:Vol. 9, iss. 2
PID:20.500.12556/DiRROS-18941 New window
UDC:577
ISSN on article:2379-5077
DOI:10.1128/msystems.01264-23 New window
COBISS.SI-ID:184957699 New window
Note:Soavtorji: Jennifer H. Hennenfeind, Chie Amano, Zihao Zhao, Katja Klun, Gerhard J. Herndl, Tinkara Tinta; Nasl. z nasl. zaslona; Opis vira z dne 13. 2. 2024;
Publication date in DiRROS:16.05.2024
Views:102
Downloads:143
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Record is a part of a journal

Title:mSystems
Shortened title:mSystems
Publisher:American Society for Microbiology, 2016-
ISSN:2379-5077
COBISS.SI-ID:525849369 New window

Document is financed by a project

Funder:EC - European Commission
Project number:793778
Name:Microbial Degradation of Jellyfish-Derived Substrates
Acronym:MIDAS

Funder:FWF - Austrian Science Fund
Funding programme:Austrian Science Fund (FWF)
Project number:I 4978
Name:Decay of an invasive ctenophore bloom

Funder:ARIS - Slovenian Research and Innovation Agency
Project number:J7-2599-2020
Name:Vpliv razpada masovne populacije invazivne rebrače na mikrobno združbo obalnega morja - od molekul do ekosistema - celosten interdisciplinarni pristop

Funder:ARIS - Slovenian Research and Innovation Agency
Project number:P1-0237-2020
Name:Raziskave obalnega morja

Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

Language:Slovenian
Keywords:meduze, protease, bacterioplankton, biogeokemija morja


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