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Early differences in production of messenger rnas for phenylalanine ammonia lyase and chalcone synthase in resistant and susceptible cultivars of soybean inoculated with phytophthora megasperma f sp glycinea



Early differences in production of messenger rnas for phenylalanine ammonia lyase and chalcone synthase in resistant and susceptible cultivars of soybean inoculated with phytophthora megasperma f sp glycinea



Physiological & Molecular Plant Pathology 30(2): 293-298



The production of mRNAs for phenylalanine ammonia-lyase and chalcone synthase was determined in the first 5 h following infection of intact etiolated soybean hypocotyls with zoospores of Phytophthora megasperma f. sp. glycinea. mRNA was extracted from tissue excised from inoculated sites and mRNAs for the two enzymes detected by dot hybridization using corresponding cDNA probes. A major increase in mRNAs for both enzymes was detected by 3 h following inoculation in an incompatible interaction but not in a compatible interaction. The results are consistent with the development of early differences in glyceollin biosynthesis in the two types of interaction.

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Accession: 005204941

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