<i>Lik1</i> mutants show enhanced responses to chitin elicitor.

<p>ROS generation in <i>lik1</i> mutant lines treated with chitooctaose (A), flg22 (B) or elf26 (C). ROS was analyzed 20 seconds before and after the maximum signal observed. The data are the average of 12 leaf discs punched from six 4-week-old plants. (Bars represent standard deviations). Student T-test (*)<0.05. The experiment was done in triplicate, each with similar results. D, MPK phosphorylation in mature leaf treated with chitooctaose at the time point indicated in the figure, determined by immunoblotting using anti-MPK3/MPK6 antibody. Lower gel reveals similar loading of total protein using poceau s staining.