<?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%">Riddell, Carolyn E.</style></author><author><style face="normal" font="default" size="100%">Dun, Heather F.</style></author><author><style face="normal" font="default" size="100%">Elliot, Matt</style></author><author><style face="normal" font="default" size="100%">Armstrong, April C.</style></author><author><style face="normal" font="default" size="100%">Clark, Mhairi</style></author><author><style face="normal" font="default" size="100%">Forster, Jack</style></author><author><style face="normal" font="default" size="100%">Hedley, Pete E.</style></author><author><style face="normal" font="default" size="100%">Green, Sarah</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Detection and spread of Phytophthora austrocedri within infected Juniperus communis woodland and diversity of co-associated Phytophthoras as revealed by metabarcoding</style></title><secondary-title><style face="normal" font="default" size="100%">Forest Pathology</style></secondary-title><short-title><style face="normal" font="default" size="100%">For. Path.</style></short-title></titles><dates><year><style  face="normal" font="default" size="100%">2020</style></year><pub-dates><date><style  face="normal" font="default" size="100%">May-17-2020</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://onlinelibrary.wiley.com/doi/abs/10.1111/efp.12602</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">50</style></volume><pages><style face="normal" font="default" size="100%">e12602</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 austrocedri&lt;/em&gt; is a recently invasive soilborne pathogen which is causing widespread mortality of &lt;em&gt;Juniperus communis&lt;/em&gt; in northern Britain. The pathways by which a single genotype of &lt;em&gt;P. austrocedri&lt;/em&gt; has spread to infect such a geographically dispersed range of woodland sites within a relatively short timeframe are unknown. This study examined the detectability of &lt;em&gt;P. austrocedri&lt;/em&gt; in soil and water within infected &lt;em&gt;J. communis&lt;/em&gt; woodland using qPCR to gain a better understanding of the pathogen's key mechanisms of spread. A &lt;em&gt;Phytophthora&lt;/em&gt; metabarcoding method was also applied to investigate the wider diversity of &lt;em&gt;Phytophthora&lt;/em&gt; species present in water at one of the sites. qPCR analyses of &lt;em&gt;P. austrocedri&lt;/em&gt; in soil samples at a &lt;em&gt;J. communis&lt;/em&gt; woodland exhibiting low‐to‐moderate levels of disease suggested a slow natural spread of the pathogen in soil, requiring high moisture conditions. However, the ubiquity of &lt;em&gt;P. austrocedri&lt;/em&gt; DNA in soil samples collected across a heavily infected &lt;em&gt;J. communis&lt;/em&gt; site suggests that once established at a site the pathogen can be spread readily in soil locally, most likely vectored by animal movements and/or human activities. The hypothesis that &lt;em&gt;P. austrocedri&lt;/em&gt; is aerially transmitted in rainwater was not adequately proven, and an alternative hypothesis for the widespread distribution of the pathogen on &lt;em&gt;J. communis&lt;/em&gt; in northern Britain is presented. Metabarcoding identified DNA from a diverse range of &lt;em&gt;Phytophthora&lt;/em&gt; species in river and rainwater samples although the main target pathogen, &lt;em&gt;P. austrocedri,&lt;/em&gt; was not amplified which disagreed with some of the qPCR findings. Possible reasons for this are discussed.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">3</style></issue></record></records></xml>