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Cryptomycocolax: A New Mycoparasitic Heterobasidiomycete

Franz Oberwinkler and Robert Bauer
Mycologia
Vol. 82, No. 6 (Nov. - Dec., 1990), pp. 671-692
DOI: 10.2307/3760154
Stable URL: http://www.jstor.org/stable/3760154
Page Count: 22
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Cryptomycocolax: A New Mycoparasitic Heterobasidiomycete
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Abstract

Descriptions are provided of new basidiomycetous taxa, i.e., Cryptomycocolacales, Cryptomycocolacaceae, Cryptomycocolax, and Cryptomycocolax abnorme. The type species is parasitic on an ascomycete and is characterized by scattered, clamped hyphae without basidiocarps. In cell contact zones, the host cell forms globose to botryose outgrowths. These are completely surrounded by a closely attached cell of the parasite. Specialized cell organelles of the parasite, designated here as colacosomes, interact with host cells. Basidia are subulate. After the first meiotic division, an apical, spore-like body develops from the upper part of the basidium. Meiosis II takes place there and in the remaining basal part of the basidium. The latter elongates and produces terminal, sessile basidiospores. The simple septal pores are associated with Woronin bodies. Interphase and prophase spindle pole bodies have large lateral discs that are connected by small middle pieces. Meiosis is described in detail. The heterobasidiomycete Cryptomycocolax abnorme appears to be closely related to the ascomycetes.

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