Pathotoxin-Induced Disease Resistance in Plants

Primary leaves of bean plants treated with nonphytotoxic concentrations of the pathotoxin victorin were rendered highly resistant to two plant viruses. Leaves treated with higher concentrations of victorin became necrotic. These effects on plants that are resistant to victorin and to the fungus that...

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Bibliographic Details
Published inScience (American Association for the Advancement of Science) Vol. 166; no. 3911; pp. 1415 - 1417
Main Authors Wheeler, Harry, Pirone, Thomas P.
Format Journal Article
LanguageEnglish
Published United States American Association for the Advancement of Science 12.12.1969
Subjects
Disease resistance
Graft rejection
Heterologous transplantation
Leaves
Lesions
Necrosis
Oats
Phytopathology
Transplantation
Viruses
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Summary:Primary leaves of bean plants treated with nonphytotoxic concentrations of the pathotoxin victorin were rendered highly resistant to two plant viruses. Leaves treated with higher concentrations of victorin became necrotic. These effects on plants that are resistant to victorin and to the fungus that produces it lend support to the hypothesis that activation of a defensive self-repair mechanism may account for resistance to this highly selective pathotoxin.
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ISSN:0036-8075
1095-9203
DOI:10.1126/science.166.3911.1415