Detection and characterisation of benomyl resistant strains of Microcyclus ulei


Citation

Ismail Hashim, . Detection and characterisation of benomyl resistant strains of Microcyclus ulei. pp. 155-162. ISSN 0127-7065

Abstract

Benomyl resistant isolates of Microcyclus ulei were detected by inoculating potato sucrose agar medium amended with 1 mg per litre benomyl. Race 6 and to a lesser extent Race 2 of the fungus had a higher frequency of yielding resistant isolates. Resistant isolates developed longer germtubes on benomyl-treated cellophane and required higher concentrations of benomyl to control infection. Benomyl resistant isolates were also cross-resistant to thiophanate methyl and carbendazim. Sporulation of a benomyl resistant isolate was not significantly reduced by the presence of low concentrations of benomyl or a benomyl sensitive isolate.


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Abstract

Benomyl resistant isolates of Microcyclus ulei were detected by inoculating potato sucrose agar medium amended with 1 mg per litre benomyl. Race 6 and to a lesser extent Race 2 of the fungus had a higher frequency of yielding resistant isolates. Resistant isolates developed longer germtubes on benomyl-treated cellophane and required higher concentrations of benomyl to control infection. Benomyl resistant isolates were also cross-resistant to thiophanate methyl and carbendazim. Sporulation of a benomyl resistant isolate was not significantly reduced by the presence of low concentrations of benomyl or a benomyl sensitive isolate.

Additional Metadata

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Item Type: Article
AGROVOC Term: Microcyclus ulei
AGROVOC Term: Benomyl
AGROVOC Term: Leaves
AGROVOC Term: Isolation
AGROVOC Term: Benzimidazoles
AGROVOC Term: Fungicides
AGROVOC Term: Triforine
AGROVOC Term: Chlorothalonil
AGROVOC Term: Conidia
AGROVOC Term: Resistance to chemicals
Depositing User: Ms. Suzila Mohamad Kasim
Last Modified: 24 Apr 2025 06:28
URI: http://webagris.upm.edu.my/id/eprint/23555

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