Electrophoretic Comparison of Mitochondrial Polypeptides from Maize Lines Susceptible and Resistant to Helminthosporium maydis Race T

The mitochondrial polypeptides from maize lines susceptible and resistant to Helminthosporium maydis were studied by single- and two-dimensional gel electrophoresis. Approximately 120 polypeptides were detected by two-dimensional gel electrophoresis. However, it was not possible to detect qualitative differences between the mitochondrial polypeptides of the two inbreds. These observations are discussed with reference to the putative mechanism of action of the pathotoxin.