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Catalase activity and sensitivity to the fungicides, iprodione and fludioxonil in Botrytis cinerea
Author(s) -
Steel C.C.
Publication year - 1996
Publication title -
letters in applied microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.698
H-Index - 110
eISSN - 1472-765X
pISSN - 0266-8254
DOI - 10.1111/j.1472-765x.1996.tb01173.x
Subject(s) - iprodione , botrytis cinerea , fludioxonil , fungicide , horticulture , biology , botany
C.C. STEEL. 1996. Specific activities of the enzyme catalase were compared with iprodione and fludioxonil sensitivity in 17 field isolates of Botrytis cinerea . Fludioxonil proved to be potnet 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.