Specific activities of the enzyme catalase were compared with iprodione and fludioxonil sensitivity in 17 field isolates of Botrytis cinerea. Fludioxonil proved to be a potent inhibitor of both iprodione-sensitive and -resistant isolates. Catalase activity was found to be positively correlated with iprodione resistance (r = 0.77, P < 0.001) confirming that dicarboximide resistance is mediated by enhanced oxidative protective enzymes. No such correlation was found with fludioxonil suggesting that resistance at the biochemical level differs for the two fungicide groups.
|Number of pages||4|
|Journal||Letters in Applied Microbiology|
|Publication status||Published - 01 Jan 1996|