Seasonality and toxin production of Pyrodinium bahamense in a Red Sea lagoon

Eulalia Banguera Hinestroza; W. Eikrem; H. Mansour; Ingrid Solberg; Joao Curdia; Karie Ellen Holtermann; B. Edvardsen; Stein Kaartvedt

doi:10.1016/j.hal.2016.03.002

Seasonality and toxin production of Pyrodinium bahamense in a Red Sea lagoon

Eulalia Banguera Hinestroza, W. Eikrem, H. Mansour, Ingrid Solberg, Joao Curdia, Karie Ellen Holtermann, B. Edvardsen, Stein Kaartvedt

Research output: Contribution to journal › Article › peer-review

19 Scopus citations

Abstract

Harmful algal blooms of the dinoflagellate Pyrodinium bahamense have caused human and economic losses in the last decades. This study, for the first time, documents a bloom of P. bahamense in the Red Sea. The alga was recurrently present in a semi-enclosed lagoon throughout nearly 2 years of observations. The highest cell densities (104-105 cells L-1) were recorded from September to beginning of December at temperatures and salinities of ~26-32 °C and ~41, respectively. The peak of the bloom was recorded mid-November, before a sharp decrease in cell numbers at the end of December. Minimum concentrations in summer were at ~103 cells L-1. A saxitoxin ELISA immunoassay of cultures and water samples confirmed the toxicity of the strain found in the Red Sea. Moreover, a gene expression analysis of the saxitoxin gene domain SxtA4 showed that transcript production peaked at the culmination of the bloom, suggesting a relation between transcript production, sudden cells increment-decline, and environmental factors. © 2016 Elsevier B.V.

Original language	English (US)
Pages (from-to)	163-171
Number of pages	9
Journal	Harmful Algae
Volume	55
DOIs	https://doi.org/10.1016/j.hal.2016.03.002
State	Published - Mar 19 2016

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: We thank Nikolaos Zarokanellos, Francis Luke Mallon and the CMOR team at Kaust for help and support, Ali R. Behzad and Ohoud Mohammed Eid Alharbi from the Imaging and Characterization lab at Kaust for their invaluable collaboration during the imagining process, and the core lab facilities; specially Sadhasivam Perumal for his valuable support and guide. This study was funded by King Abdullah University of Science and Technology (KAUST).[SS]

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title = "Seasonality and toxin production of Pyrodinium bahamense in a Red Sea lagoon",

abstract = "Harmful algal blooms of the dinoflagellate Pyrodinium bahamense have caused human and economic losses in the last decades. This study, for the first time, documents a bloom of P. bahamense in the Red Sea. The alga was recurrently present in a semi-enclosed lagoon throughout nearly 2 years of observations. The highest cell densities (104-105 cells L-1) were recorded from September to beginning of December at temperatures and salinities of ~26-32 °C and ~41, respectively. The peak of the bloom was recorded mid-November, before a sharp decrease in cell numbers at the end of December. Minimum concentrations in summer were at ~103 cells L-1. A saxitoxin ELISA immunoassay of cultures and water samples confirmed the toxicity of the strain found in the Red Sea. Moreover, a gene expression analysis of the saxitoxin gene domain SxtA4 showed that transcript production peaked at the culmination of the bloom, suggesting a relation between transcript production, sudden cells increment-decline, and environmental factors. {\textcopyright} 2016 Elsevier B.V.",

author = "{Banguera Hinestroza}, Eulalia and W. Eikrem and H. Mansour and Ingrid Solberg and Joao Curdia and Holtermann, {Karie Ellen} and B. Edvardsen and Stein Kaartvedt",

note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: We thank Nikolaos Zarokanellos, Francis Luke Mallon and the CMOR team at Kaust for help and support, Ali R. Behzad and Ohoud Mohammed Eid Alharbi from the Imaging and Characterization lab at Kaust for their invaluable collaboration during the imagining process, and the core lab facilities; specially Sadhasivam Perumal for his valuable support and guide. This study was funded by King Abdullah University of Science and Technology (KAUST).[SS]",

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AU - Banguera Hinestroza, Eulalia

AU - Eikrem, W.

AU - Mansour, H.

AU - Solberg, Ingrid

AU - Curdia, Joao

AU - Holtermann, Karie Ellen

AU - Edvardsen, B.

AU - Kaartvedt, Stein

N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: We thank Nikolaos Zarokanellos, Francis Luke Mallon and the CMOR team at Kaust for help and support, Ali R. Behzad and Ohoud Mohammed Eid Alharbi from the Imaging and Characterization lab at Kaust for their invaluable collaboration during the imagining process, and the core lab facilities; specially Sadhasivam Perumal for his valuable support and guide. This study was funded by King Abdullah University of Science and Technology (KAUST).[SS]

PY - 2016/3/19

Y1 - 2016/3/19

N2 - Harmful algal blooms of the dinoflagellate Pyrodinium bahamense have caused human and economic losses in the last decades. This study, for the first time, documents a bloom of P. bahamense in the Red Sea. The alga was recurrently present in a semi-enclosed lagoon throughout nearly 2 years of observations. The highest cell densities (104-105 cells L-1) were recorded from September to beginning of December at temperatures and salinities of ~26-32 °C and ~41, respectively. The peak of the bloom was recorded mid-November, before a sharp decrease in cell numbers at the end of December. Minimum concentrations in summer were at ~103 cells L-1. A saxitoxin ELISA immunoassay of cultures and water samples confirmed the toxicity of the strain found in the Red Sea. Moreover, a gene expression analysis of the saxitoxin gene domain SxtA4 showed that transcript production peaked at the culmination of the bloom, suggesting a relation between transcript production, sudden cells increment-decline, and environmental factors. © 2016 Elsevier B.V.

AB - Harmful algal blooms of the dinoflagellate Pyrodinium bahamense have caused human and economic losses in the last decades. This study, for the first time, documents a bloom of P. bahamense in the Red Sea. The alga was recurrently present in a semi-enclosed lagoon throughout nearly 2 years of observations. The highest cell densities (104-105 cells L-1) were recorded from September to beginning of December at temperatures and salinities of ~26-32 °C and ~41, respectively. The peak of the bloom was recorded mid-November, before a sharp decrease in cell numbers at the end of December. Minimum concentrations in summer were at ~103 cells L-1. A saxitoxin ELISA immunoassay of cultures and water samples confirmed the toxicity of the strain found in the Red Sea. Moreover, a gene expression analysis of the saxitoxin gene domain SxtA4 showed that transcript production peaked at the culmination of the bloom, suggesting a relation between transcript production, sudden cells increment-decline, and environmental factors. © 2016 Elsevier B.V.

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DO - 10.1016/j.hal.2016.03.002

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SP - 163

EP - 171

JO - Harmful Algae

JF - Harmful Algae

ER -

Seasonality and toxin production of Pyrodinium bahamense in a Red Sea lagoon

Abstract

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