Western blot of plasma membrane fractions obtained from the different strains of U. maydis. Lanes: A, control WT sporidia; B, A14; C, P51; D, Et-C sporidia; E, Tri-T sporidia; F, Fen-T sporidia. Lanes were loaded with 5 μg of protein. At the right is the molecular mass (in kilodaltons) of the marker.