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Toxins 2016, 8(3), 55;

Cylindrospermopsin Biodegradation Abilities of Aeromonas sp. Isolated from Rusałka Lake

Department of Plant Physiology and Development, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30387 Krakow, Poland
Department of Hydrobiology, Faculty of Biology, Adam Mickiewicz University, Umultowska 89, 61-614 Poznań, Poland
Department of Molecular Virology, Faculty of Biology, Adam Mickiewicz University, Umultowska 89, 61-614 Poznań, Poland
Author to whom correspondence should be addressed.
Academic Editor: Vítor Vasconcelos
Received: 7 December 2015 / Revised: 9 February 2016 / Accepted: 9 February 2016 / Published: 25 February 2016
(This article belongs to the Special Issue Bioactivity and Toxicity in Marine Cyanobacteria)
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The occurrence of the cyanobacterial toxin cylindrospermopsin (CYN) in freshwater reservoirs is a common phenomenon. However, the biodegradation of this toxin in environmental samples has been observed only occasionally. In this work the biodegradation ability of cylindrospermopsin was investigated based on isolates from lakes with previous cyanotoxin history. Bacterial strains were identified based on the 16S rDNA and rpoD gene comparison. CYN biodegradation was monitored using the HPLC method. The R6 strain identified as Aeromonas sp. was documented as being capable of CYN removal. This biodegradation was dependent on the pH and temperature. Additionally, the stimulation of the growth of the R6 strain in the presence of CYN was indicated. Our discovery supports the hypothesis that (in analogy to the well-known phenomenon of microcystin biodegradation) in lakes dominated by potential CYN-producing cyanobacteria, the processes of microbial utilization of this toxin may occur. View Full-Text
Keywords: cylindrospermopsin; biodegradation; Aeromonas sp.; Polish lakes cylindrospermopsin; biodegradation; Aeromonas sp.; Polish lakes

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Dziga, D.; Kokocinski, M.; Maksylewicz, A.; Czaja-Prokop, U.; Barylski, J. Cylindrospermopsin Biodegradation Abilities of Aeromonas sp. Isolated from Rusałka Lake. Toxins 2016, 8, 55.

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