<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>10</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Beever, JE</style></author><author><style face="normal" font="default" size="100%">Coffey, MD</style></author><author><style face="normal" font="default" size="100%">Ramsfield, TD</style></author><author><style face="normal" font="default" size="100%">Dick, MA</style></author><author><style face="normal" font="default" size="100%">Horner, IJ</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Kauri (Agathis australis) Under Threat From Phytophthora?</style></title><secondary-title><style face="normal" font="default" size="100%">Fourth Meeting of IUFRO Working Party S07.02.09</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2007</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2009</style></date></pub-dates></dates><publisher><style face="normal" font="default" size="100%">U.S. Department of Agriculture, Forest Service Pacific Southwest Research Station</style></publisher><pub-location><style face="normal" font="default" size="100%">Monterey, California</style></pub-location><volume><style face="normal" font="default" size="100%">General Technical report PSW-GTR-221</style></volume><pages><style face="normal" font="default" size="100%">74–85</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;div class=&quot;page&quot; title=&quot;Page 86&quot;&gt;&lt;div class=&quot;layoutArea&quot;&gt;&lt;div class=&quot;column&quot;&gt;&lt;p&gt;&lt;span style=&quot;font-size: 10.000000pt; font-family: 'TimesNewRomanPSMT';&quot;&gt;Five species of &lt;/span&gt;&lt;span style=&quot;font-size: 10.000000pt; font-family: 'TimesNewRomanPS'; font-style: italic;&quot;&gt;Phytophthora &lt;/span&gt;&lt;span style=&quot;font-size: 10.000000pt; font-family: 'TimesNewRomanPSMT';&quot;&gt;have been recorded from &lt;/span&gt;&lt;span style=&quot;font-size: 10.000000pt; font-family: 'TimesNewRomanPS'; font-style: italic;&quot;&gt;Agathis australis &lt;/span&gt;&lt;span style=&quot;font-size: 10.000000pt; font-family: 'TimesNewRomanPSMT';&quot;&gt;(kauri) or soil in kauri forests: &lt;/span&gt;&lt;span style=&quot;font-size: 10.000000pt; font-family: 'TimesNewRomanPS'; font-style: italic;&quot;&gt;P. cinnamomi&lt;/span&gt;&lt;span style=&quot;font-size: 10.000000pt; font-family: 'TimesNewRomanPSMT';&quot;&gt;, &lt;/span&gt;&lt;span style=&quot;font-size: 10.000000pt; font-family: 'TimesNewRomanPS'; font-style: italic;&quot;&gt;P. cryptogea&lt;/span&gt;&lt;span style=&quot;font-size: 10.000000pt; font-family: 'TimesNewRomanPSMT';&quot;&gt;, &lt;/span&gt;&lt;span style=&quot;font-size: 10.000000pt; font-family: 'TimesNewRomanPS'; font-style: italic;&quot;&gt;P. kernoviae&lt;/span&gt;&lt;span style=&quot;font-size: 10.000000pt; font-family: 'TimesNewRomanPSMT';&quot;&gt;, &lt;/span&gt;&lt;span style=&quot;font-size: 10.000000pt; font-family: 'TimesNewRomanPS'; font-style: italic;&quot;&gt;P. nicotianae &lt;/span&gt;&lt;span style=&quot;font-size: 10.000000pt; font-family: 'TimesNewRomanPSMT';&quot;&gt;and &lt;/span&gt;&lt;span style=&quot;font-size: 10.000000pt; font-family: 'TimesNewRomanPS'; font-style: italic;&quot;&gt;Phytophthora &lt;/span&gt;&lt;span style=&quot;font-size: 10.000000pt; font-family: 'TimesNewRomanPSMT';&quot;&gt;taxon Agathis (PTA) initially recorded as &lt;/span&gt;&lt;span style=&quot;font-size: 10.000000pt; font-family: 'TimesNewRomanPS'; font-style: italic;&quot;&gt;P. heveae&lt;/span&gt;&lt;span style=&quot;font-size: 10.000000pt; font-family: 'TimesNewRomanPSMT';&quot;&gt;. &lt;/span&gt;&lt;span style=&quot;font-size: 10.000000pt; font-family: 'TimesNewRomanPS'; font-style: italic;&quot;&gt;P. cinnamomi &lt;/span&gt;&lt;span style=&quot;font-size: 10.000000pt; font-family: 'TimesNewRomanPSMT';&quot;&gt;has been found widely in natural stands and has been linked with ill-thrift and occasional tree death, especially in regenerating stands on poorly drained sites. PTA, which is known from fewer natural stands, is associated with a collar rot, causing large bleeding lesions near the ground, yellowing foliage, and tree death. The other three species have only been reported once. ITS sequence studies of PTA show it belongs with, but is distinct from, &lt;/span&gt;&lt;span style=&quot;font-size: 10.000000pt; font-family: 'TimesNewRomanPS'; font-style: italic;&quot;&gt;P. heveae &lt;/span&gt;&lt;span style=&quot;font-size: 10.000000pt; font-family: 'TimesNewRomanPSMT';&quot;&gt;in ITS clade 5. Cultural and molecular studies indicate a close relationship with &lt;/span&gt;&lt;span style=&quot;font-size: 10.000000pt; font-family: 'TimesNewRomanPS'; font-style: italic;&quot;&gt;P. katsurae&lt;/span&gt;&lt;span style=&quot;font-size: 10.000000pt; font-family: 'TimesNewRomanPSMT';&quot;&gt;. It is proposed that PTA may be introduced to New Zealand, but too few isolates are available to determine whether genetic variability of this species provides support for this hypothesis. Recent surveys have found collar rot is widely distributed across the natural range of kauri. Typically, affected stands are relatively small in size. Size class distributions indicate trees of many ages are affected and a disease front can sometimes be detected. Pathogenicity tests show PTA is highly pathogenic to kauri. We propose that collar rot caused by PTA is an emerging disease caused by an introduced pathogen that is spreading slowly from widespread disease foci. It poses a threat to kauri, both at the individual icon level and at the population level, with flow-on effects to kauri ecosystems. &lt;/span&gt;&lt;/p&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;</style></abstract></record></records></xml>