Detection of PR 1-type Proteins in Amaranthaceae, Chenopodiaceae, Graminae and Solanaceae by Immunoelectroblotting

Abstract

SUMMARY Pathogenesis-related (PR) proteins (M r 14000 to 18000) serologically related to PR 1a protein from Nicotiana tabacum cv. Xanthi-nc were detected in infected plants or salicylic acid-treated plants of maize, barley, tomato, potato, Solanum demissum, Gomphrena globosa and Chenopodium amaranticolor using affinity-purified antibodies in immunoelectroblots. Only in Go. globosa was a protein related to PR 1a found in a healthy plant.