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Potency of pinnatoxins produced by dinoflagellates isolated from New Zealand and South Australia


Rhodes, L and Smith, K and Munday, R and Hallegraeff, GM and Selwood, A and Molenaar, S and McNabb, P and Adamson, J and Wilkinson, C, Potency of pinnatoxins produced by dinoflagellates isolated from New Zealand and South Australia, Proceedings of the 14th International Conference on Harmful Algae, 1-5 November 2010, Hersonissos-Crete, Greece, pp. 209-211. ISBN 978 87 990827 3 5 (2013) [Refereed Conference Paper]

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Copyright 2012 The International Society for the Study of Harmful Algae

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Vulcanodinium rugosum., the scrippsielloid dinoflagellate producer of pinnatoxins, was isolated from surface sediments collected from Northland, New Zealand, in summer 2008/2009. The dinoflagellate was isolated and cultured predominantly in cyst form, with the New Zealand isolates producing pinnatoxins E and F and Australian isolates predominantly G and less E and F. V. rugosum killed sea urchin and paua larvae and caused morbitity in sea slug larvae; Pacific oyster and Artemia salina larvae became slightly moribund. GreenshellTM mussel larvae were unaffected. Depuration rates of 50% of pinnatoxin E and F from Pacific oysters were 14.5 and 16 d respectively. Crude extracts of mass cultures of the New Zealand and Australian isolates tested for toxicity in mice by intraperitoneal injection, gavage and voluntary consumption resulted in toxicity ratios of 1.0: 1.8: 4.5 and 1.0: 2.9: 7.8 respectively.

Item Details

Item Type:Refereed Conference Paper
Keywords:algal blooms 2
Research Division:Biological Sciences
Research Group:Plant biology
Research Field:Phycology (incl. marine grasses)
Objective Division:Animal Production and Animal Primary Products
Objective Group:Fisheries - aquaculture
Objective Field:Fisheries - aquaculture not elsewhere classified
UTAS Author:Hallegraeff, GM (Professor Gustaaf Hallegraeff)
ID Code:86695
Year Published:2013
Deposited By:IMAS Research and Education Centre
Deposited On:2013-10-14
Last Modified:2014-08-18
Downloads:2 View Download Statistics

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