Virulence of hdc1 Mutants.
Conidia (104/mL in 0.1% Tween 20) were sprayed on 3-week-old maize plants of genotype hm1/hm1 grown in a greenhouse, and the plants were covered overnight with plastic bags.
(A) Infected leaves 4 days after inoculation. From left to right, the leaves were inoculated with wild type (367-2), T702.1, T702.2, T702.3, T702.4, or T702.5, or uninoculated.
(B) Infected plants 2 weeks after inoculation. From left to right, the plants were inoculated with wild type (367-2), T702.1, T702.2, T702.3, T702.4, or T702.5. All of the plants are still alive except the plant sprayed with the wild-type conidia.