Taphrinomycotina
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The Taphrinomycotina are one of three subdivisions constituting the Ascomycota (fungi that form their spores in a sac-like ascus) and is more or less synonymous with the slightly older invalid name Archiascomycetes (sometimes spelled Archaeascomycetes; archea = ancient). Recent molecular studies suggest that the group is monophyletic and basal to the rest of the Ascomycota.[2][3]
The major taxa are Schizosaccharomycetes, Taphrinomycetes, Neolectomycetes, and Pneumocystis.
The Schizosaccharomycetes are the yeasts (e.g. Schizosaccharomyces) that reproduce by fission rather than budding, unlike most other yeasts, many of which are in the subdivision Saccharomycotina.
The Taphrinomycetes are dimorphic plant parasites (e.g. Taphrina) with both a yeast state and a filamentous (hyphal) state in infected plants. They characteristically infect leaves, catkins, and branches, not roots. Taphrinomycetes form asci but no ascomata.
The Neolectomycetes are species in a single genus, Neolecta, which are the only members of the subdivision that form ascomata (fruiting bodies), and which specifically grow out of root tips. They may have a yeast state (ascospores bud in the asci). [citation needed]
The Pneumocystidomycetes also contains only one genus of fungi, Pneumocystis. Pneumocystis are all obligate parasites of mammals. One can infect humans.
None has ascogenous hyphae giving rise to the asci.[citation needed]
References
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- ^ Page Module:Citation/CS1/styles.css has no content.Eriksson, O.E. & K. Winka (1997). "Supraordinal taxa of Ascomycota". Myconet. 1: 1–16.
- ^ Page Module:Citation/CS1/styles.css has no content.Lutzoni, F.; et al. (2004). "Assembling the fungal tree of life: progress, classification, and evolution of subcellular traits". Am. J. Bot. 91 (10): 1446–1480. doi:10.3732/ajb.91.10.1446. PMID 21652303.
- ^ Page Module:Citation/CS1/styles.css has no content.James, T.Y.; et al. (2006). "Reconstructing the early evolution of Fungi using a six-gene phylogeny". Nature. 443 (7113): 818–822. Bibcode:2006Natur.443..818J. doi:10.1038/nature05110. PMID 17051209. S2CID 4302864.
- The Oregon Coalition of Interdisciplinary Databases: "Archiascomycetes: Early Diverging Ascomycetes"
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