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Identification of a Shewanella halifaxensis Strain with Algicidal Effects on Red Tide Dinoflagellate Prorocentrum triestinum in Culture

The dinoflagellate Prorocentrum triestinum forms high biomass blooms that discolor the water (red tides), which may pose a serious threat to marine fauna and aquaculture exploitations. In this study, the algicidal effect of a bacterial strain (0YLH) belonging to the genus Shewanella was identified a...

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Autores principales: Cruz-Balladares, Victoria, Avalos, Vladimir, Vera-Villalobos, Hernán, Cameron, Henry, Gonzalez, Leonel, Leyton, Yanett, Riquelme, Carlos
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10532897/
https://www.ncbi.nlm.nih.gov/pubmed/37755114
http://dx.doi.org/10.3390/md21090501
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author Cruz-Balladares, Victoria
Avalos, Vladimir
Vera-Villalobos, Hernán
Cameron, Henry
Gonzalez, Leonel
Leyton, Yanett
Riquelme, Carlos
author_facet Cruz-Balladares, Victoria
Avalos, Vladimir
Vera-Villalobos, Hernán
Cameron, Henry
Gonzalez, Leonel
Leyton, Yanett
Riquelme, Carlos
author_sort Cruz-Balladares, Victoria
collection PubMed
description The dinoflagellate Prorocentrum triestinum forms high biomass blooms that discolor the water (red tides), which may pose a serious threat to marine fauna and aquaculture exploitations. In this study, the algicidal effect of a bacterial strain (0YLH) belonging to the genus Shewanella was identified and evaluated against P. triestinum. The algicidal effects on the dinoflagellate were observed when P. triestinum was exposed to cell-free supernatant (CFS) from stationary-phase cultures of the 0YLH strain. After 24 h exposure, a remarkable reduction in the photosynthetic efficiency of P. triestinum was achieved (55.9%), suggesting the presence of extracellular bioactive compounds produced by the bacteria with algicidal activity. Furthermore, the CFS exhibited stability and maintained its activity across a wide range of temperatures (20–120 °C) and pH values (3–11). These findings highlight the algicidal potential of the bacterium Shewanella halifaxensis 0YLH as a promising tool for the environmentally friendly biological control of P. triestinum blooms.
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spelling pubmed-105328972023-09-28 Identification of a Shewanella halifaxensis Strain with Algicidal Effects on Red Tide Dinoflagellate Prorocentrum triestinum in Culture Cruz-Balladares, Victoria Avalos, Vladimir Vera-Villalobos, Hernán Cameron, Henry Gonzalez, Leonel Leyton, Yanett Riquelme, Carlos Mar Drugs Article The dinoflagellate Prorocentrum triestinum forms high biomass blooms that discolor the water (red tides), which may pose a serious threat to marine fauna and aquaculture exploitations. In this study, the algicidal effect of a bacterial strain (0YLH) belonging to the genus Shewanella was identified and evaluated against P. triestinum. The algicidal effects on the dinoflagellate were observed when P. triestinum was exposed to cell-free supernatant (CFS) from stationary-phase cultures of the 0YLH strain. After 24 h exposure, a remarkable reduction in the photosynthetic efficiency of P. triestinum was achieved (55.9%), suggesting the presence of extracellular bioactive compounds produced by the bacteria with algicidal activity. Furthermore, the CFS exhibited stability and maintained its activity across a wide range of temperatures (20–120 °C) and pH values (3–11). These findings highlight the algicidal potential of the bacterium Shewanella halifaxensis 0YLH as a promising tool for the environmentally friendly biological control of P. triestinum blooms. MDPI 2023-09-21 /pmc/articles/PMC10532897/ /pubmed/37755114 http://dx.doi.org/10.3390/md21090501 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Cruz-Balladares, Victoria
Avalos, Vladimir
Vera-Villalobos, Hernán
Cameron, Henry
Gonzalez, Leonel
Leyton, Yanett
Riquelme, Carlos
Identification of a Shewanella halifaxensis Strain with Algicidal Effects on Red Tide Dinoflagellate Prorocentrum triestinum in Culture
title Identification of a Shewanella halifaxensis Strain with Algicidal Effects on Red Tide Dinoflagellate Prorocentrum triestinum in Culture
title_full Identification of a Shewanella halifaxensis Strain with Algicidal Effects on Red Tide Dinoflagellate Prorocentrum triestinum in Culture
title_fullStr Identification of a Shewanella halifaxensis Strain with Algicidal Effects on Red Tide Dinoflagellate Prorocentrum triestinum in Culture
title_full_unstemmed Identification of a Shewanella halifaxensis Strain with Algicidal Effects on Red Tide Dinoflagellate Prorocentrum triestinum in Culture
title_short Identification of a Shewanella halifaxensis Strain with Algicidal Effects on Red Tide Dinoflagellate Prorocentrum triestinum in Culture
title_sort identification of a shewanella halifaxensis strain with algicidal effects on red tide dinoflagellate prorocentrum triestinum in culture
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10532897/
https://www.ncbi.nlm.nih.gov/pubmed/37755114
http://dx.doi.org/10.3390/md21090501
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