Comparative Studies Between Treatments of Potato Tubers Slices with Three Amino Acids and Treatment with Salicylic Acid or Jasmonic Acid on the Infection by Dry Rot (Fusarium solani)

Document Type : Original Article

Authors

Plant Pathology Department, Faculty of Agriculture, Ain Shams University P.O. Box: 68, Hadayek Shobra 11241, Cairo, Egypt.

Abstract

The effect of treatment potato tuber slices with three different amino acids i.e., L-tyrosine, L-arginine or L-methionine was carried out to throw some light on their interaction with dry rot caused by Fusarium solani (Mart.) Sacc. L-methionine induced a large effect on disease severity; it caused a change in the interaction between host and pathogen from a state of susceptibility to a state of resistance. However, either salicylic acid or jasmonic acid led to a similar less effect. The obtained results overlooked the role of such hormones in disease resistance and led to postulate the occurrence of DNA methylation due to the treatment with L-methionine.

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