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Science 22 January 1960:
Vol. 131. no. 3395, p. 229
DOI: 10.1126/science.131.3395.229
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Articles

Relation of Antigens of Melampsora lini and Linum usitatissimum to Resistance and Susceptibility

John A. Doubly 1, H. H. Flor 1, and C. O. Clagett 1

1 North Dakota Agricultural Experiment Station, Fargo

A specific antigen was found in each of four races of Melampsora lini and four rust-differentiating varieties of Linum usitatissimum. Avirulence and virulence were related to resistance and susceptibility through the specific rust antigens. A race was virulent to varieties containing its specific rust antigen as a minor constituent, and avirulent to varieties lacking that antigen. No such correlation was found with flax antigens.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)