Potentially toxic diatoms of the genus Pseudo-nitzschia in the Adriatic sea

Gazić, Mateja (2009) Potentially toxic diatoms of the genus Pseudo-nitzschia in the Adriatic sea. Bachelor's thesis, Faculty of Science > Department of Biology.

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Abstract

Diatoms of the genus Pseudo-nitzschia bloom under conditions of reduced luminosity when the values of temperature are low and at a wide range of salinities. The production of domoic acid, a water-soluble amino acid, depends on availability of silicon, phosphorus, nitrogen and metal, mainly iron. However, the role of domoic acid in organism protection or in primary production is not known. It is suggested that domoic acid takes part in excretion of excess photosynthetic energy. Equally, the variability in domoic acid production between different species of genus Pseudo-nitzschia or the presence of toxic and non-toxic strains of the same species cannot be explained. An increase in toxic blooms of Pseudo-nitzschia might be related to increase in nutrient availability from antropogenic pollution. Global warming may have an influence as well by lengthening the growth period for Pseudo-nitzschia enlarging their global distribution.

Item Type: Thesis (Bachelor's thesis)
Supervisor: Viličić, Damir
Co-supervisor: Burić, Zrinka
Date: 2009
Number of Pages: 12
Subjects: NATURAL SCIENCES > Biology
Divisions: Faculty of Science > Department of Biology
Depositing User: Silvana Šehić
Date Deposited: 22 Dec 2014 12:30
Last Modified: 22 Dec 2014 12:30
URI: http://digre.pmf.unizg.hr/id/eprint/3578

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