Abstract

The phylum Deuteromycota (Fungi Imperfecti, Table 8-1) includes a group of miscellaneous fungi that are classified according to characteristics of an asexual (anamorphic) rather than a sexual (teleomorphic) state. As mentioned previously (Table 8-3), some Deuteromycetes are anamorphs of Ascomycetes or Basidiomycetes, all of which are classed as the perfect higher fungi (see Chapter 9). The primary means of reproduction in the Deuteromycetes is the conidium, a non-motile, usually deciduous spore. In the largest class of entomopathogenic Deuteromycetes, the Hyphomycetes, the conidia are borne on free hyphae or on aggregates of hyphae (synnemata). Members of the class Coelomycetes have various types of specialized conidial-bearing structures (conidiomata). The Mycelia Sterilia (Aegerita webberi) are placed among the Deuteromycetes even though they do not produce conidia. Several genera within the Hyphomycetes will be discussed in detail. Emphasis will be placed on a topic(s) that has been a major point of interest in studies of each of the fungi presented.

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