<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Eshraghi, L.</style></author><author><style face="normal" font="default" size="100%">Anderson, J.</style></author><author><style face="normal" font="default" size="100%">Aryamanesh, N.</style></author><author><style face="normal" font="default" size="100%">Shearer, B.</style></author><author><style face="normal" font="default" size="100%">McComb, J.</style></author><author><style face="normal" font="default" size="100%">Hardy, G. E. StJ.</style></author><author><style face="normal" font="default" size="100%">O’Brien, P. A.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Phosphite primed defence responses and enhanced expression of defence genes in Arabidopsis thaliana infected with Phytophthora cinnamomi</style></title><secondary-title><style face="normal" font="default" size="100%">Plant Pathology</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">callose deposition</style></keyword><keyword><style  face="normal" font="default" size="100%">defence response</style></keyword><keyword><style  face="normal" font="default" size="100%">hydrogen peroxide</style></keyword><keyword><style  face="normal" font="default" size="100%">potassium phosphonate (phosphite)</style></keyword><keyword><style  face="normal" font="default" size="100%">reactive oxygen species (ROS)</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2011</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://dx.doi.org/10.1111/j.1365-3059.2011.02471.x</style></url></web-urls></urls><number><style face="normal" font="default" size="100%">6</style></number><publisher><style face="normal" font="default" size="100%">Blackwell Publishing Ltd</style></publisher><volume><style face="normal" font="default" size="100%">60</style></volume><pages><style face="normal" font="default" size="100%">1086–1095</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;This paper describes the effect of phosphite (Phi), a systemic chemical, on the induction of defence responses in &lt;em&gt;Phytophthora cinnamomi&lt;/em&gt;-infected &lt;em&gt;Arabidopsis thaliana&lt;/em&gt; accessions Ler and Col-0. Application of Phi to non-inoculated &lt;em&gt;A. thaliana&lt;/em&gt; seedlings of accession Ler elevated transcription of defence genes in the salicylic acid (PR1 and PR5) and jasmonic acid/ethylene (THI2.1 and PDF1.2) pathways. Furthermore, a systemic increase in the expression of the PR1 gene was demonstrated in Phi-treated seedlings using the transgenic line PR1::GUS in the presence/absence of the pathogen by 72 h after inoculation. The cells of Phi-treated &lt;em&gt;A. thaliana&lt;/em&gt; Ler leaves responded to &lt;em&gt;P. cinnamomi&lt;/em&gt; zoospore inoculation with a rapid increase in callose deposition and hydrogen peroxide (H2O2) production. Phi treatment resulted in the production of callose papillae 6 h earlier than in non-Phi-treated inoculated seedlings and enhanced the production of H2O2 in the leaves of &lt;em&gt;A. thaliana&lt;/em&gt; at the site of hyphal penetration and in cells away from the inoculation point. By 24 h after infection, clear differences in the amount of H2O2 production were observed between the Phi-treated and non-Phi-treated plants. These rapid host responses did not occur in non-Phi-treated inoculated seedlings. There was also a significant (P &amp;lt; 0·001) decrease in lesion size in Phi-treated plants. These results indicate that Phi primes the plant for a rapid and intense response to infection involving heightened activation of a range of defence responses.&lt;/p&gt;</style></abstract></record></records></xml>