Induced Resistance of Cotton Seedlings to Mites

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Science  06 Jul 1984:
Vol. 225, Issue 4657, pp. 53-54
DOI: 10.1126/science.225.4657.53


Mite populations grew more rapidly on new growth of cotton seedlings that had never been exposed to mites than on new growth of plants whose cotyledons had been previously exposed to them. Experiments in which a second mite introduction on the exposed plants involved a different mite species produced this same result. The substance or substances responsible for the response are transported systemically among leaves of cotton seedlings.

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