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Loss and recovery of zoospore motility in an isolate of Aphanomyces from a diseased fish

Published by:
Publication date
23/02/2009
Language:
English
Type of Publication:
Articles & Journals
Focus Region:
Global
Focus Topic:
Health & Diseases
Type of Risk:
Biological & environmental
Type of Risk Managment Option:
Risk assessment
Commodity:
Fisheries & Aquaculture
Source
http://dx.doi.org/10.1016/S0953-7562(09)81078-2
Author
Roberts, R.J.; Willoughby, L.G.

Zoospores of an Aphanomyces from a diseased fish ceased to be motile following physical shock, or ionic shock with 100 mg Ca l−1, but motility was regained after 4·5 h, without an intervening encystment phase. This novel finding indicates that, in this fungus at least, zoospores might be transported, immobile, by water currents and encyst only in response to conducive surfaces.