Figure 2.

Blast Resistance of WRKY45-ox Plants.

WRKY45-ox homozygote T3 (fourth generation) and control wild-type plants grown in a growth chamber ([A] and [B]) or in a greenhouse (C) were inoculated with M. grisea (race 007.0) at the five- to six-leaf stage, and disease symptoms were characterized 7 d after inoculation.

(A) Disease symptoms on the sixth leaves of wild-type and WRKY45-ox (line 15) plants grown in a growth chamber.

(B) and (C) Numbers of lesions on plants grown in a growth chamber ([B]; GC) and a greenhouse ([C]; GH). The bars represent the number of susceptible-type lesions in the 10-cm central region of the sixth leaves of individual T3 WRKY45-ox (lines #15, #21, and #24) and wild-type rice plants. Averages of 5 to 10 plants with standard deviations are shown. Greenhouse conditions were 28/23°C (day/night) with natural light in December. Essentially similar results were obtained when the plants were grown in March (data not shown).