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Original scientific paper

https://doi.org/10.32582/aa.61.2.2

First evidence of domoic acid production in Pseudo-nitzschia calliantha cultures from the central Adriatic Sea

Jasna Arapov orcid id orcid.org/0000-0001-7568-1929 ; Institute of Oceanography and Fisheries, Split, Croatia
Ivana Ujević orcid id orcid.org/0000-0001-6686-1418 ; Institute of Oceanography and Fisheries, Split, Croatia
Maja Straka ; Institute of Oceanography and Fisheries, Split, Croatia
Sanda Skejić orcid id orcid.org/0000-0002-4038-7495 ; Institute of Oceanography and Fisheries, Split, Croatia
Mia Bužančić orcid id orcid.org/0000-0003-3848-9561 ; Institute of Oceanography and Fisheries, Split, Croatia
Ana Bakrač ; Institute of Oceanography and Fisheries, Split, Croatia
Živana Ninčević Gladan ; Institute of Oceanography and Fisheries, Split, Croatia


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Abstract

In this study, three isolates of the potentially toxic diatom genus Pseudo-nitzschia were analysed for morphological and toxicological features. Cultures of Pseudo-nitzschia were established from seawater samples collected from the southern part of the Velebit Channel (central Adriatic Sea) during February 2019. All culture isolates were identified by scanning electron microscopy (SEM) as Pseudo-nitzschia calliantha. Domoic acid (DA) production was confirmed in all isolates analysed. The highest concentrations of cellular DA were found in early culture stages, with the lowest cell abundance, for all P. calliantha isolates. This study is the first to report DA production by P.calliantha isolated from the Adriatic Sea.

Keywords

Pseudo-nitzschia; morphology; toxicity; domoic acid

Hrčak ID:

250274

URI

https://hrcak.srce.hr/250274

Publication date:

28.12.2020.

Article data in other languages: croatian

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