Abstract
THE interaction of two haploid cells of opposite sex to produce the diplophase is a phenomenon well known in heterothallic species of the Hymenomycetes and of the smut and rust fungi. Buller1 has recently shown that a diploid mycelium of Coprinus lagopus, on coming into contact with a haploid mycelium of that species, transforms the latter mycelium into the diploid condition. He has introduced the word diploidisation “to designate in the Hymenomycetes the process by which a haploid cell, or mycelium, is converted into a diploid cell, or mycelium, by the formation of conjugate nuclei within the cell or mycelium”. An extension of the application of this term to designate a similar process in other groups of the Basidiomycetes, such as the smuts and rusts, does not appear inappropriate.
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References
Buller, A. H. R., NATURE, 126, 686, Nov. 1, 1930; "Researches on Fungi", vol. 4, p. 187; 1931.
Craigie, J. H., NATURE, 120, 116 and 765, July 23 and Nov. 26, 1927.
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BROWN, A. Diploidisation of Haploid by Diploid Mycelium of Puccinia helianthi Schw. Nature 130, 777 (1932). https://doi.org/10.1038/130777a0
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DOI: https://doi.org/10.1038/130777a0
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