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Science. 1971 Jun 11;172(3988):1145-6.

Cucumber Beetle Resistance and Mite Susceptibility Controlled by the Bitter Gene in Cucumis sativus L.


Antibiotic and nonpreference mechanisms are related in cucumber through the action of the bi gene and the absence of cucurbitacins. Cucurbitacins attract cucumber beetles and cause feeding whereas they have an antibiotic effect on two-spotted mites.

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