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Article Dans Une Revue Microbial ecology Année : 2023

Occurrence and Seasonal Dynamics of ALNs in Freshwater Lakes Are Influenced by Their Biological Environment

Résumé

Aster Like Nanoparticles (ALNs) are femtoentities, recently discovered in different aquatic environments, whose intrinsic nature and ecological features remain to be determined. In this study, we investigate the in-situ temporal dynamics of ALNs during one year in 3 different lakes, in relation with the physico-chemical and biological environment. ALN abundances in investigated lakes showed a marked seasonal dynamic (from no detectable to 4.28 ± 0.75 x 10 6 ALNs.mL-1), with characteristic peaks in spring. We recorded correlation between ALNs and some prokaryotic phyla suggesting a broad and non-specific relationship. From their seasonal dynamics and potential link with prokaryotes, we conclude that ALNs represent an important ecological actor in the functioning of aquatic ecosystems.
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hal-03936443 , version 1 (17-01-2023)

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Maxime Fuster, Hermine Billard, Gisèle Bronner, Télesphore Sime-Ngando, Jonathan Colombet. Occurrence and Seasonal Dynamics of ALNs in Freshwater Lakes Are Influenced by Their Biological Environment. Microbial ecology, In press, ⟨10.1007/s00248-022-01974-1⟩. ⟨hal-03936443⟩
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