Characterisation of Rhizoctonia solani associated with potatoes in Western Australia
Burges, N.E., Wright, D., O'Brien, P. and Hardy, G.E.St.J. (2005) Characterisation of Rhizoctonia solani associated with potatoes in Western Australia. In: 15th Australasian Plant Pathology Society Conference, 26-29 September 2005, Geelong, Vic.
Western Australia (WA) produces ware potatoes for consumption and seed potatoes for export. In W A, potatoes are produced in a number of regions including the Perth metropolitan area, Harvey, Donneybrook, Margaret River, Manjimup, Albany, Mt. Barker, Myaiup, Baldivis and Esperance.
One of the most economically important pathogens of potato is the soil-borne fungus Rhizoctonia solani. This pathogen causes a number of diseases that affect the tubers, stems and stolons of potato plants. R. solani is a complex species with isolates being divided into anastomosis groups (AG). Further characterization of AG's has been based on differences in the frequency of hyphal anastomosis, DNA homology, the pectic zymogram system and other morphological characteristics.
Previous surveys of potato crops in W A have identified R. solani as a serious pathogen but failed to characterise further what AG's of R. solani were present. We have undertaken a survey of isolates of R. solani from potato crops in W A to determine the principal AG's present.
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|Murdoch Affiliation:||School of Biological Sciences and Biotechnology|
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