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The Amino Terminus of the Coat Protein of Turnip crinkle virus Is the AVR Factor Recognized by Resistant Arabidopsis

September 2000 , Volume 13 , Number  9
Pages  1,015 - 1,018

Yajuan Zhao , 1 Leanna DelGrosso , 1 Erbay Yigit , 1 D'Maris Amick Dempsey , 2 Daniel F. Klessig , 2 and Kristin K. Wobbe 1

1Worcester Polytechnic Institute, Department of Chemistry and Biochemistry, 100 Institute Rd., Worcester, MA 01609, U.S.A.; 2Waksman Institute and Department of Molecular Biology and Biochemistry, Rutgers, the State University of New Jersey, 190 Frelinghuysen Rd., Piscataway, NJ 08854-8020, U.S.A.

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Accepted 1 June 2000.

We have isolated three naturally occurring strains of Turnip crinkle virus (TCV) that break resistance in Di-17 Arabidopsis. Two mutations in the N terminus of the TCV coat protein, D4N and P5S, were shown to confer this phenotype. Thus, this region of the coat protein is involved in eliciting resistance responses in Arabidopsis.

© 2000 The American Phytopathological Society