<?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%">Wen-Hsiung, KO</style></author><author><style face="normal" font="default" size="100%">Wang, SY</style></author><author><style face="normal" font="default" size="100%">Ann, PJ</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">The possible origin and relation of Phytophthora katsurae and P. heveae, discovered in a protected natural forest in Taiwan</style></title><secondary-title><style face="normal" font="default" size="100%">Botanical Studies</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2006</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://ejournal.sinica.edu.tw/bbas/content/2006/3/Bot473-07/</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">47</style></volume><pages><style face="normal" font="default" size="100%">273-277</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">When a total of 531 soil samples collected from 1976 to 2000 from various locations distributed in every county on the island of Taiwan was assayed, sixteen isolates of &lt;em&gt;Phytophthora katsurae&lt;/em&gt; and nine isolates of &lt;em&gt;P. heveae&lt;/em&gt; were recovered from three and four counties, respectively. &lt;em&gt;Phytophthora katsurae&lt;/em&gt; and &lt;em&gt;P. heveae&lt;/em&gt; were isolated from a protected natural forest located atop a hill at Lenhuachih without higher land within the range of vision, suggesting that both species are indigenous to Taiwan. &lt;em&gt;Phytophthora katsurae&lt;/em&gt; is distinguished from the similar &lt;em&gt;P. heveae&lt;/em&gt; by its verrucose oogonial wall. The number of protrusions produced by the Taiwanese isolates of &lt;em&gt;P. katsurae&lt;/em&gt; varied greatly ranging from 2 to 23 per oogonium, indicating the unsteadiness of this taxonomical characteristic. Oogonia produced by isolates of &lt;em&gt;P. katsurae&lt;/em&gt; obtained from Hawaii contained very few protrusions. Moreover, most oogonia produced by two of these isolates did not have any protrusions and were indistinguishable from those produced by P. heveae. Results suggest the development of &lt;em&gt;P. heveae&lt;/em&gt; directly from &lt;em&gt;P. katsurae&lt;/em&gt; by loss of oogonial protrusions. The high level of ITS sequence similarity between &lt;em&gt;P. heveae&lt;/em&gt; and &lt;em&gt;P. katsurae&lt;/em&gt; in comparison with their relationships to other &lt;em&gt;Phytophthora&lt;/em&gt; species tested also support the possibility of the recent development of one species from the other species.</style></abstract></record></records></xml>