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Cattle mortality attributed to the toxic cyanobacterium Cylindrospermopsis raciborskii in an outback region of North Queensland

Saker, M.L. and Thomas, A.D. and Norton, J.H. (1999) Cattle mortality attributed to the toxic cyanobacterium Cylindrospermopsis raciborskii in an outback region of North Queensland. Environmental Toxicology, 14 (1). pp. 179-182.

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Article Link(s): http://dx.doi.org/10.1002/(SICI)1522-7278(199902)1...

Publisher URL: http://www3.interscience.wiley.com/cgi-bin/home

Abstract

Three cows and ten calves were found dead near a farm dam on a cattle property at McKinlay in northwest Queensland, Australia. At that time, the dam contained an algal bloom which was identified as a monoculture of the cyanobacterium C. raciborskii. Histological examination of the liver of a calf carcass showed signs consistent with poisoning caused by hepatotoxin. The hepatotoxic alkaloid cylindrospermopsin was detected in material harvested from the dam (4.1×10-15 g cell-1) and in a pure culture of an isolate from the bloom (4.4×10-15 g cell-1). An extract of this material was lethal to mice after 24 h at an intraperitoneal concentration of 153 mg kg-1. This appears to be the first report of animal poisonings attributed to the cyanobacterium C. raciborskii.

Item Type:Article
Corporate Creators:Biosecurity Queensland
Additional Information:© Wiley Periodicals Inc.
Keywords:Cyanobacterium; Cylindrospermopsis raciborskii; Cylindrospermopsin; Cattle mortality; Hepatotoxin.
Subjects:Veterinary medicine > Veterinary toxicology
Veterinary medicine > Other diseases and conditions
Deposited On:25 Mar 2004
Last Modified:23 Mar 2009 04:01

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