Cyanobacterial Neurotoxins from Southern Brazilian Freshwaters

Blooms of Cylindrospermopsis raciborskii and Anabaena spiroides were studied in relation to their toxins composition, geographical locations, and other characteristics of the waters in the southern region of Brazil. All forms of Cylindrospermopsis were paralytic shellfish toxin producers, with a sim...

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Bibliographic Details
Published in:Comments on toxicology 2003-03, Vol.9 (2), p.103-115
Main Authors: Yunes, J. S., Cunha, N. T., Barros, L. P., Proença, L. A. O., Monserrat, J. M.
Format: Article
Language:English
Subjects:
Anabaena
Anabaena spiroides
Cyanobacteria
Cylindrospermopsis
Cylindrospermopsis raciborskii
Neurotoxins
Southern Brazil
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Summary:Blooms of Cylindrospermopsis raciborskii and Anabaena spiroides were studied in relation to their toxins composition, geographical locations, and other characteristics of the waters in the southern region of Brazil. All forms of Cylindrospermopsis were paralytic shellfish toxin producers, with a similar profile of the toxins. Anabaena blooms were studied in relation to the production of anatoxin-a(S). In all samples containing Anabaena spiroides, a positive result was found when the AChE inhibition technique was used. Methods applied for both studies are very convenient for monitoring this large region and give a reasonable view of the present situation of water reservoirs in southern Brazil.
ISSN:0886-5140
1545-584X
DOI:10.1080/08865140302426