Influence of Aliphatic Organic Acids and Metal Ions on Numbers of Local Lesions Produced by a Tobacco Necrosis Virus

Abstract
SUMMARY: Many aliphatic organic acids, when sprayed on the leaves of bean plants, decreased the numbers of local lesions produced following inoculation with a tobacco necrosis virus. Citric and succinic acids were effective only when applied before or during the period of virus establishment. The inhibitory effect of these acids could be annulled by certain metal nitrates.

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