<?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%">C.M. Brasier</style></author><author><style face="normal" font="default" size="100%">Griffin, M.J.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Taxonomy of Phytophthora palmivora on cocoa</style></title><secondary-title><style face="normal" font="default" size="100%">Transactions of the British Mycological Society</style></secondary-title><short-title><style face="normal" font="default" size="100%">Transactions of the British Mycological Society</style></short-title></titles><dates><year><style  face="normal" font="default" size="100%">1979</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2/1979</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.sciencedirect.com/science/article/pii/S0007153679800157</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">72</style></volume><pages><style face="normal" font="default" size="100%">111 - 143</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;abstract svAbstract &quot;&gt;&lt;p id=&quot;&quot;&gt;Morphological and physiological studies-chromosome type, colony morphology and growth rate on carrot agar, cocoa pod lesion characteristics, morphology and size of sporangia, sporangial pedicels, chlamydospores and sex organs, compatibility type, growth on a synthetic medium, response to &lt;em&gt;Trichoderma&lt;/em&gt;, and temperature relations-were made with &lt;em&gt;c.&lt;/em&gt; 950 &lt;em&gt;Phytophthora&lt;/em&gt; isolates from cocoa (&lt;em&gt;Theobroma cacao&lt;/em&gt; L.) attributed to &lt;em&gt;P. palmivora&lt;/em&gt; (Butl.) Butl. The survey covered isolates from all the major cocoa growing areas of the world, and included isolates studied by C. H. Gadd and S. F. Ashby in the 1920s.&lt;/p&gt;&lt;p id=&quot;&quot;&gt;The majority of the isolates could be assigned to one of three distinct forms, termed S, L and MF4. The S-type is attributed here to &lt;em&gt;P. palmivora&lt;/em&gt;, which is redefined. Both L and MF4 are considered to be distinct species of &lt;em&gt;Phytophthora&lt;/em&gt;. The L-type could not be identified with any known species and is described here as &lt;em&gt;P. megakarya&lt;/em&gt; sp.nov. &lt;em&gt;P. palmivora&lt;/em&gt; occurred world-wide on cocoa, whereas &lt;em&gt;P. megakarya&lt;/em&gt; was obtained only from West Africa and MF4 only from Central and South America and the West Indies.&lt;/p&gt;&lt;p id=&quot;&quot;&gt;Isolates attributed to &lt;em&gt;P. palmivora&lt;/em&gt; from other hosts were also examined. Some isolates from rubber, coconut and durian were &lt;em&gt;P. palmivora&lt;/em&gt; (S-type). Isolates from pepper comprised a group closely resembling MF4. Isolates from coconut and rubber originally attributed to &lt;em&gt;P. palmivora&lt;/em&gt; by S. F. Ashby, C. H. Gadd and E. M. Blackwell comprised a further group, and were also attributed here to &lt;em&gt;P. palmivora&lt;/em&gt;, yet were somewhat different morphologically from the S-type on cocoa. It is not clear which of these two types is authentic &lt;em&gt;P. palmivora&lt;/em&gt;.&lt;/p&gt;&lt;p id=&quot;&quot;&gt;The significance of these results, and the value of the various diagnostic criteria used, is discussed.&lt;/p&gt;&lt;/div&gt;</style></abstract><issue><style face="normal" font="default" size="100%">1</style></issue></record></records></xml>