MEDICAL MYCOLOGY

Dr Tadayo Hashimoto M.D.
Professor
Department of Microbiology & Immunology

3. All of the following statements about fungal growth are true EXCEPT that:

hyphae result from continuous apical extension
all fungi, except for those belonging to the class zygomycetes, are septated
budding is a common reproductive mechanism of yeast cells
entangled masses of individual hyphae are called mycelium
only the yeast form of fungi produces sexual spores

(E) Both yeast and mold produce sexual spores. For example, Saccharomyces cerevisiae, which is a yeast, produces sexual spores known as ascospores and Neurospora crassa, which normally grows in mycelial form, also produces sexual spores known as ascospores. Some sexual spores formed by mold are known as zygospores. All other statements listed in A through D are correct. (Joklik et al, pp. 1071-1079; Ryan et al, pp. 572-573)

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