Abstract
THE phenomenon of heterothallism (the separation of sex in different individuals) is known to occur in the Phycomycetes (Mucor), in the Ascomycetes (Ascobolus, Penicillium), in a large number of Hymeno-mycetes (mushrooms and toadstools), and in the Smut fungi. Therefore the question arises: Does heterothallism occur in tho Rust fungi? An attempt to solve this problem, which is of considerable theoretical and perhaps practical interest, has been made by the author by sowing the sporidia of Puccinia helianthi on leaves of young Sunflower plants and observing whether or not aecia are produced: (1) when a single sporidium is sown by itself, and (2) when two sporidia are sown close together.
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CRAIGIE, J. Experiments on Sex in Rust Fungi. Nature 120, 116–117 (1927). https://doi.org/10.1038/120116a0
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DOI: https://doi.org/10.1038/120116a0
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