Colonization of barley and <i>Arabidopsis</i> by <i>P. indica</i> in response to ACC and MCP.

Abstract

<p>(<b>A</b>) Two-day-old barley seedlings or (<b>B</b>) two-week-old <i>Arabidopsis</i> seedlings were inoculated with <i>P. indica</i> and subsequently treated with 500 ppt 1-methylcyclopropene (MCP) as described in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0035502#s4" target="_blank">Materials and Methods</a>. Barley was also treated with 100 µM 1-aminocyclopropane-1-carboxylic acid (ACC). MCP inhibited <i>P. indica</i> colonization at 3 or 7 dai in <i>Arabidopsis</i> or barley, respectively. The values are normalized to colonization in mock-treated roots (set to one). The data are based on three independent biological experiments. Student's <i>t</i>-test indicates a significant difference in <i>P. indica</i>-colonization of MCP-treated roots (* P<0.05).</p