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Heteroecious
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<h2 id="fungal-examples">Fungal examples</h2> <ul><li><i><a href="/facts/Gymnosporangium/JRwQP85w">Gymnosporangium</a></i> (Cedar-apple rust): the <a href="/facts/Juniper/0HctFTBQ">juniper</a> is the primary (<a href="/facts/Teliospore/IIyGPbtm">telial</a>) host and the <a href="/facts/Apple/SF1WND0v">apple</a>, <a href="/facts/Pear/pRAKLrdK">pear</a> or <a href="/facts/Crataegus/SI3RcAJS">hawthorn</a> is the secondary (<a href="/facts/Aecial/So8S6vbb">aecial</a>) host.</li> <li><i><a href="/facts/White_Pine_Blister_Rust/7d5m4Sym">Cronartium ribicola</a></i> (White pine blister rust): the primary host are <a href="/facts/Pinus_classification/4VQfr0eJ">white pines</a>, and <a href="/facts/Ribes/dojQdtbp">currants</a> the secondary.</li> <li><i><a href="/facts/Hemileia_vastatrix/eA3ExBpd">Hemileia vastatrix</a></i> (Coffee rust): the primary host is coffee plant, and the alternate host is unknown.</li> <li><i><a href="/facts/Puccinia_graminis/QjThGfLT">Puccinia graminis</a></i> (Stem rust): the primary hosts include Kentucky bluegrass, barley, and wheat; barberry is the alternate host.</li> <li><a href="/facts/Puccinia_coronata_var._avenae/5r16XS6A"><i>Puccinia coronata</i> var. <i>avenae</i></a> (Crown rust of oats): Oats are the primary host; <i><a href="/facts/Rhamnus_(genus)/tmKe17jp">Rhamnus</a></i> spp. (Buckthorns) are the alternate hosts.</li> <li><i>Phakopsora meibomiae</i> and <i><a href="/facts/Phakopsora_pachyrhizi/ycHlru6U">P. pachyrhizi</a></i> (Soybean Rust): the primary host is soybean and various legumes. The alternate host is unknown.</li> <li><i><a href="/facts/Puccinia_porri/fxu79a1k">Puccinia porri</a></i> (Leek rust): <a href="/facts/Autoecious/X40nlTHU">autoecious</a></li></ul> <h2 id="history">History</h2> <p>The phenomenon of heteroecy was first discovered by <a href="/facts/Anders_Sand%C3%B8e_%C3%98rsted_(botanist)/CmEMCMW5">A.S. Ørsted</a> in 1863.<a class="footnote-ref" id="fnref:3" href="#fn:3"><sup>3</sup></a> </p> <h2 id="references">References</h2> <ol> <li id="fn:1"><p>Schumann, G. & D'Arcy, C. (2010). Essential plant pathology. APS Press <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li> <li id="fn:2"><p>Odening, Klaus (20 January 1976). "Conception and terminology of hosts in parasitology". In Dawes, Ben (ed.). Advances in Parasitology. Vol. 14. Academic Press. pp. 24–25. ISBN 978-0-08-058060-9. Archived from the original on 26 October 2023. Retrieved 2 October 2020. <a href="978-0-08-058060-9" target="_blank">978-0-08-058060-9</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li> <li id="fn:3"><p>Ørsted, A.S. (1863) Om Sygdomme hos Planterne, som foraarsages af Snyltesvampe, navnlig om Rust og Brand og om Midlerne til deres Forebyggelse. Kjøbenhavn <a href="/wiki/Copenhagen" target="_blank">/wiki/Copenhagen</a> <a href="#fnref:3" class="footnote-back-ref">↩</a></p></li> </ol>