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Isolation of Mucor circinelloides from a case of ulcerative mycosis of platypus (Ornithorhynchus anatinus), and a comparison of the response of Mucor circinelloides and Mucor amphibiorum to different culture temperatures

Citation

Stewart, NJ and Munday, BL and Hawkesford, TM, Isolation of Mucor circinelloides from a case of ulcerative mycosis of platypus (Ornithorhynchus anatinus), and a comparison of the response of Mucor circinelloides and Mucor amphibiorum to different culture temperatures, Medical Mycology, 37, (3) pp. 201-206. ISSN 1369-3786 (1999) [Refereed Article]

DOI: doi:10.1046/j.1365-280X.1999.00221.x

Abstract

The fungus Mucor circinelloides was isolated from a platypus (Ornithorhynchus anatinus) suffering from ulcerative mycosis. On horse blood agar at 20, 25 and 30°C, the fungus formed sphaerule-like bodies, a morphology previously associated with Mucor amphibiorum, the species thought to be responsible for the disease in platypus. A biopsy taken from the ulcer was fixed, cut and stained. The sections were compared with sections taken from other platypuses suffering from ulcerative mycosis, and from which M. amphibiorum had been isolated. There were no discernible differences between the sphaerule-like bodies found in any of the sections. The presence of sphaerule-like bodies in tissues of ulcerated animals can, therefore, probably no longer be relied upon as a definitive method for the diagnosis of M. amphibiorum infection. It is possible that M. circinelloides is either a primary or a secondary pathogen of platypuses, and further work is required to resolve this point. The isolate of M. circinelloides grew at temperatures up to 38°C, with an optimum temperature for growth of 30°C. Of six isolates of M. amphibiorum derived from both platypus and amphibians, two grew well at 38°C. The growth of one of these isolates at elevated temperatures may be explained by the hot climate of the area in Queensland in which it was found. All of the isolates tested had maximum temperatures for growth in excess of the body temperature of platypuses (32°C).

Item Details

Item Type:Refereed Article
Research Division:Agricultural and Veterinary Sciences
Research Group:Fisheries Sciences
Research Field:Aquaculture
Objective Division:Animal Production and Animal Primary Products
Objective Group:Fisheries - Aquaculture
Objective Field:Fisheries - Aquaculture not elsewhere classified
Author:Stewart, NJ (Dr Niall Stewart)
Author:Munday, BL (Dr Barry Munday)
Author:Hawkesford, TM (Ms Tiina Mall Hawkesford)
ID Code:16662
Year Published:1999
Web of Science® Times Cited:8
Deposited By:TAFI - Aquaculture
Deposited On:1999-08-01
Last Modified:2011-08-05
Downloads:0

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