Overview of Rust Fungi - Plant Management Network
Overview of Rust Fungi - Plant Management Network
Overview of Rust Fungi - Plant Management Network
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Species A<br />
(heteromacro-form,<br />
ancestral)<br />
Aecial host<br />
(0, I; systemic)<br />
e.g., Ranunculaceae<br />
Telial host (II, III, IV)<br />
e.g., Prunoideae<br />
Tranzschel’s Law<br />
(Tranzschel 1904)<br />
reduction<br />
species A + B = correlated species<br />
Species B<br />
(micro-form,<br />
derived)<br />
Former aecial host<br />
(0, III; systemic)<br />
e.g., Ranunculaceae<br />
Species considered related to each other due to similarities in III morphology and a<br />
shared host, but with different life cycles.<br />
• Microcyclic species are derived<br />
• No microcyclic species in more “primitive” families (except for Chrysomyxa abietis)<br />
• Mostly confined to genera in the Pucciniaceae
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