<?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%">De Dobbelaere, I.</style></author><author><style face="normal" font="default" size="100%">Vercauteren, A.</style></author><author><style face="normal" font="default" size="100%">Speybroeck, N.</style></author><author><style face="normal" font="default" size="100%">Berkvens, D.</style></author><author><style face="normal" font="default" size="100%">Van Bockstaele, E.</style></author><author><style face="normal" font="default" size="100%">Maes, M.</style></author><author><style face="normal" font="default" size="100%">Heungens, K.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Effect of host factors on the susceptibility of Rhododendron to Phytophthora ramorum</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%">host resistance</style></keyword><keyword><style  face="normal" font="default" size="100%">leaf age</style></keyword><keyword><style  face="normal" font="default" size="100%">leaf hairs</style></keyword><keyword><style  face="normal" font="default" size="100%">Phytophthora kernoviae</style></keyword><keyword><style  face="normal" font="default" size="100%">rootstock</style></keyword><keyword><style  face="normal" font="default" size="100%">sporulation</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2010</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://dx.doi.org/10.1111/j.1365-3059.2009.02212.x</style></url></web-urls></urls><number><style face="normal" font="default" size="100%">2</style></number><publisher><style face="normal" font="default" size="100%">Blackwell Publishing Ltd</style></publisher><volume><style face="normal" font="default" size="100%">59</style></volume><pages><style face="normal" font="default" size="100%">301–312</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;&lt;em&gt;Phytophthora ramorum&lt;/em&gt; causes sudden oak death (SOD) in western coastal forests of the USA. In Europe, the pathogen is mainly present in the nursery industry, particularly on &lt;em&gt;Rhododendron.&lt;/em&gt; Because of the primary role of &lt;em&gt;Rhododendron&lt;/em&gt; as a host and potentially as a vector, the effect of &lt;em&gt;Rhododendron&lt;/em&gt; host factors on &lt;em&gt;P. ramorum&lt;/em&gt; susceptibility and sporulation was investigated. Inoculation methods using either wounded or non-wounded detached leaves were applied to 59 &lt;em&gt;Rhododendron&lt;/em&gt; cultivars and 22 botanical species, replicated in three separate years. All &lt;em&gt;Rhododendron&lt;/em&gt; species and cultivars were susceptible when using wounded leaves, but not when using non-wounded leaves, suggesting a resistance mechanism operating at the level of leaf penetration. Using a regression tree analysis, the cultivars and species were split into four susceptibility classes. Young leaves were more susceptible than mature leaves when wounded, but less susceptible when non-wounded. This effect was not correlated with leaf hydrophobicity or the number of leaf hairs. The presence or the type of rootstock did not affect the cultivar susceptibility level. Sporangia and chlamydospore production in the leaf lesions varied widely among &lt;em&gt;Rhododendron&lt;/em&gt; cultivars and was not correlated with the susceptibility level. The susceptibility to &lt;em&gt;P. ramorum&lt;/em&gt; correlated well with the susceptibility to &lt;em&gt;P. citricola&lt;/em&gt; and &lt;em&gt;P. hedraiandra&amp;nbsp;&lt;/em&gt;×&lt;em&gt;&amp;nbsp;cactorum&lt;/em&gt;, suggesting that the resistance mechanisms against these species are non-specific. Susceptibility to &lt;em&gt;P. kernoviae&lt;/em&gt; was low for most cultivars. These findings have implications for detection, spread and disease control, and are therefore important in pest risk assessment.&lt;/p&gt;</style></abstract></record></records></xml>