Linking lifestyle and foraging strategies of marine bacteria
- Microbe-mediated enzymatic hydrolysis of organic matter entails the production of hydrolysate, the recovery of which may be more or less efficient. The selfish uptake mechanism, recently discovered, allows microbes to hydrolyze polysaccharides and take up large oligomers, which are then degraded in the periplasmic space. By minimizing the hydrolysate loss, selfish behaviour may be profitable for free-living cells dwelling in a patchy substrate landscape. However, selfish uptake seems to be tailored to algal-derived polysaccharides, abundant in organic particles, suggesting that particle-attached microbes may use this strategy. We tracked selfish polysaccharides uptake in surface microbial communities of the northeastern Mediterranean Sea, linking the occurrence of this processing mode with microbial lifestyle. Additionally, we set up fluorescently labelled polysaccharides incubations supplying phytodetritus to investigate a 'pioneer' scenario for particle-attached microbes. Under both conditions, selfish behaviour was almostMicrobe-mediated enzymatic hydrolysis of organic matter entails the production of hydrolysate, the recovery of which may be more or less efficient. The selfish uptake mechanism, recently discovered, allows microbes to hydrolyze polysaccharides and take up large oligomers, which are then degraded in the periplasmic space. By minimizing the hydrolysate loss, selfish behaviour may be profitable for free-living cells dwelling in a patchy substrate landscape. However, selfish uptake seems to be tailored to algal-derived polysaccharides, abundant in organic particles, suggesting that particle-attached microbes may use this strategy. We tracked selfish polysaccharides uptake in surface microbial communities of the northeastern Mediterranean Sea, linking the occurrence of this processing mode with microbial lifestyle. Additionally, we set up fluorescently labelled polysaccharides incubations supplying phytodetritus to investigate a 'pioneer' scenario for particle-attached microbes. Under both conditions, selfish behaviour was almost exclusively carried out by particle-attached microbes, suggesting that this mechanism may represent an advantage in the race for particle exploitation. Our findings shed light on the selfish potential of particle-attached microbes, suggesting multifaceted foraging strategies exerted by particle colonizers.…
Author details: | Vincenzo MannaORCiD, Luca ZoccaratoORCiD, Elisa Banchi, Carol ArnostiORCiD, Hans-Peter GrossartORCiDGND, Mauro Celussi |
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DOI: | https://doi.org/10.1111/1758-2229.13059 |
ISSN: | 1758-2229 |
Pubmed ID: | https://pubmed.ncbi.nlm.nih.gov/35362215 |
Title of parent work (English): | Environmental microbiology reports |
Subtitle (English): | selfish behaviour of particle-attached bacteria in the northern Adriatic Sea |
Publisher: | Wiley |
Place of publishing: | Hoboken |
Publication type: | Article |
Language: | English |
Date of first publication: | 2022/03/31 |
Publication year: | 2022 |
Release date: | 2024/05/23 |
Volume: | 14 |
Issue: | 4 |
Number of pages: | 10 |
First page: | 549 |
Last Page: | 558 |
Funding institution: | German Science Foundation (DFG) [GR1540/30-1, GR1540/37-1]; National; Science Foundation [OCE-1736772, OCE-2022952]; Interreg Mediterranean; project SHAREMED; Istituto Nazionale di Oceanografia e Geofisica; Sperimentale within the CRUI-CARE Agreement |
Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Biochemie und Biologie |
DDC classification: | 5 Naturwissenschaften und Mathematik / 57 Biowissenschaften; Biologie / 570 Biowissenschaften; Biologie |
Peer review: | Referiert |
Publishing method: | Open Access / Hybrid Open-Access |
License (German): | CC-BY - Namensnennung 4.0 International |