Nuclear Division in Germinating Aeciospores and Its Taxonomic Significance for the Western Gall Rust Fungus, Peridermium harknessii
- 1 March 1988
- journal article
- research article
- Published by Taylor & Francis in Mycologia
- Vol. 80 (2) , 235-240
- https://doi.org/10.2307/3807798
Abstract
We examined nuclear division of germinating aeciospores of the western gall rust fungus, Peridermium harknessii (teleomorph, Endocronartium harknessii). Mature aeciospores were primarily (86%) binucleate. Migration of the two nuclei into the germ tube followed emergence of the germ tube. The percentage of germlings with 3 nuclei increased from 5% at 4 h to 32% at 12 h; thus, nuclear division in the germ tube was asynchronous and mitotic. We conclude that the fungus is an imperfect rust, and not an endocyclic rust, and should be called Peridermium harknessii.Keywords
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