Characterization of a unique population of Fusarium oxysporum f. sp. cubense causing Fusarium wilt in Cavendish bananas at Carnarvon, Western Australia
1995
Pegg, K.G. (Queensland Dept. of Primary Industries, Indooroopilly (Australia). Div. of Plant Protection) | Shivas, R.G. (Western Australian Dept. of Agriculture, South Perth) | Moore, N.Y. (Queensland Univ., St Lucia (Australia). Dept. of Botany) | Bentley, S. (Queensland Univ., St Lucia (Australia). Cooperative Research Centre for Tropical Plant Pathology)
A unique population of Fusarium oxysporum f. sp. cubense affecting Cavendish cv. Williams banana plants was characterized using vegetative compatibility, volatile production, RAPD-PCR analysis, pectic enzyme production and pathogenicity. The isolates were more like race 1 isolates than race 4 isolates, although they were capable of attacking Cavendish clones. The Carnarvon isolates did not belong to any of the vegetative compatibility groups (VCGs) known to occur in Australia or overseas; they belonged in the 'inodoratum' volatile group; they had 29 percent genetic similarity to race 4 isolates and 76 similarity to race 1 isolates based on RAPD-PCR banding patterns; they belonged in the same pectic zymogram group as race 1 isolates and were virulent on 3-month-old Cavendish cv. Williams, Gros Michel and Pisang Gajih Merah plants in glasshouse tests.
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