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Diversity 2019, 11(3), 37; https://doi.org/10.3390/d11030037

Prokaryotic Dynamics in the Meromictic Coastal Lake Faro (Sicily, Italy)

1
Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy
2
Department of Geoscience, University of Calgary, Calgary, T2N 1N4, Canada
3
Institute for the Biological Resources and Marine Biotechnology, National Research Council (IRBIM-CNR), 98122 Messina, Italy
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
posthumous
Received: 17 January 2019 / Revised: 22 February 2019 / Accepted: 27 February 2019 / Published: 6 March 2019
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Abstract

Lake Faro, in the North-Eastern corner of Sicily (Italy), shows the typical stratification of a meromictic tempered basin, with a clear identification of the mixolimnion and the monimolimnion, separated by an interfacial chemocline. In this study, an annual-scaled study on the space-time distribution of the microbial communities in water samples of Lake Faro was performed by both ARISA (Amplified Ribosomal Intergenic Spacer Analysis) and CARD-FISH (Catalyzed Reporter Deposition-Fluorescence In Situ Hybridization) approaches. A correlation between microbial parameters and both environmental variables (i.e., temperature, pH, dissolved oxygen, redox potential, salinity, chlorophyll-a) and mixing conditions was highlighted, with an evident seasonal variability. The most significative differences were detected by ARISA between the mixolimnion and the monimolimnion, and between Spring and Autumn, by considering layer and season as a factor, respectively. View Full-Text
Keywords: prokaryotic diversity; prokaryotic distribution; nutrients; ARISA; CARD-FISH prokaryotic diversity; prokaryotic distribution; nutrients; ARISA; CARD-FISH
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Raffa, C.; Rizzo, C.; Strous, M.; Domenico, E.D.; Sanfilippo, M.; Michaud, L.; Giudice, A.L. Prokaryotic Dynamics in the Meromictic Coastal Lake Faro (Sicily, Italy). Diversity 2019, 11, 37.

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