Figure 1.

SA-Related Phenotypes of nrb4 Plants.

(A) Plants were treated with either mock or 350 µM BTH four times over 3 weeks, their weights recorded, and the ratio between the BTH and mock-treated plants calculated (15 plants in three groups of five). The ratio is expressed as percentage of fresh weight (%FW).

(B) Plants were grown on Murashige and Skoog plates supplied with 0, 400, and 500 µM SA; the picture shows the 500 µM SA plate at day 14.

(C) The chlorophyll content of plants growing in the plates described in (B) was measured as an indication of the response to SA (30 plants in three groups of 10). The experiments were repeated three times with similar results, and the data represent the average, with the error bars plotting the sd. The letters above the bars indicate different homogeneous groups with statistically significant differences (Fisher’s LSD test, P < 0.05). In (C), the differences were evaluated between genotypes grown at either 400 µM SA or 500 µM SA (marked with a prime symbol).

[See online article for color version of this figure.]