"Phylum Zygomycota
1. Characteristics: zygomycetes; lack cross walls; produce non-motile asexual spores that develop inside a sporangium (pl. sporangia) found on hyphae called sporangiophores; form sexual spores (zygospores) from the conjugation of two special hyphae.
2. Examples: bread molds and related forms, Rhizopus, Phycomyces
Phylum Ascomycota
1. Characteristics: ascomycetes ("sac fungi"); usually reproduce asexually by forming spores (conidia) at the tip or sides of special hyphae (conidiophores); reproduce sexually by forming ascospores (usually eight, sometimes four) within an ascus (pl. asci); asci may be formed into a fruiting structure called an ascocarp), form mutulalistic associations with the roots of most trees (mycorrhizae), fungal components of most lichens.
2. Examples: most yeasts (Saccharomyces) and molds, morels, truffles, powdery mildew, Dutch elm disease, ringworm (humans).
Phylum Basidiomycota
1. Characteristics: basidiomycetes ("club fungi"); reproduce asexually by budding, fragmentation of mycelium, or forming conidia; reproduce sexually by forming a club-like basidium (pl. basidia) which bears haploid spores (usually four) on its surface; have dikaryotic stage.
2. Examples: mushrooms, plant rusts and smuts, puffballs, toadstools, shelf and bracket fungi.
Phylum Deuteromycota
1. Characteristics: deuteromycetes ("imperfect fungi"); asexual reproduction by formation of conidia; do not have sexual reproduction (at least none that we know of).
2. Examples: Aspergillus, Penicillium (some produce the antibiotic penicillin, others give Camembert and blue cheeses their flavor), athlete’s foot fungus, Candida albicans (causes thrush in the mouths of infants);Microsporum. "
But I do have to say that the Phylum differ depending on the text you read. The fungi Phylum have been debated and changed recently.
2007-02-23 13:48:48
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answer #1
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answered by birdie6089 3
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birdie's right on...those are the 4 primary phyla...not up on current taxonomy, but that's what we're teaching in the high schools these days
2007-02-23 16:00:19
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answer #4
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answered by the_way_of_the_turtle 6
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