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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1111/jpy.13361
|2 doi
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|a pubmed25n1196.xml
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|e rakwb
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|a eng
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| 100 |
1 |
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|a Daly, Giulia
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Shaping the phycosphere
|b Analysis of the EPS in diatom-bacterial co-cultures
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|c 2023
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Completed 11.08.2023
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|a Date Revised 11.08.2023
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2023 The Authors. Journal of Phycology published by Wiley Periodicals LLC on behalf of Phycological Society of America.
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|a The phycosphere is a unique niche that fosters complex interactions between microalgae and associated bacteria. The formation of this extracellular environment, and the associated bacterial biodiversity, is heavily influenced by the secretion of extracellular polymers, primarily driven by phototrophic organisms. The exopolysaccharides (EPS) represent the largest fraction of the microalgae-derived exudates, which can be specifically used by heterotrophic bacteria as substrates for metabolic processes. Furthermore, it has been proposed that bacteria and their extracellular factors play a role in both the release and composition of the EPS. In this study, two model microorganisms, the diatom Phaeodactylum tricornutum CCAP 1055/15 and the bacterium Pseudoalteromonas haloplanktis TAC125, were co-cultured in a dual system to assess how their interactions modify the phycosphere chemical composition by analyzing the EPS monosaccharide profile released in the culture media by the two partners. We demonstrate that microalgal-bacterial interactions in this simplified model significantly influenced the architecture of their extracellular environment. We observed that the composition of the exo-environment, as described by the EPS monosaccharide profiles, varied under different culture conditions and times of incubation. This study reports an initial characterization of the molecular modifications occurring in the extracellular environment surrounding two relevant representatives of marine systems
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a dual-system co-culture
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| 650 |
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|a exopolysaccharides
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| 650 |
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|a extracellular environment
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| 650 |
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|a monosaccharide composition
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4 |
|a phycosphere
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| 650 |
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|a Polymers
|2 NLM
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| 700 |
1 |
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|a Decorosi, Francesca
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Viti, Carlo
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Adessi, Alessandra
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of phycology
|d 1966
|g 59(2023), 4 vom: 12. Aug., Seite 791-797
|w (DE-627)NLM098182994
|x 1529-8817
|7 nnas
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| 773 |
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|g volume:59
|g year:2023
|g number:4
|g day:12
|g month:08
|g pages:791-797
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|u http://dx.doi.org/10.1111/jpy.13361
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