SYNCEPHALASTRUM

SPECIES

MICROSCOPIC APPEARANCE

Hyphae broad, with no or few septa; Sporangiophores often branched, terminating in a vesicle; sporangia "finger-shaped" (merosporangia), formed around the vesicle; sporangiophores round, formed in a linear series in the interior of the merosporangia; rhizoids usually present.

MACROSCOPIC APPEARANCE

Surface: Texture wooly; pale gray or dark gray in color on the surface.
Reverse: Pale white.
Growth Rate: Rapid to very rapid growth.

DISTINGUISHING FEATURES

Syncephalastrum is classified within the order Mucorales. It produces sporangiophores terminating in a vesicle upon the merosporangia are fixed. It is necessary to avoid confusing these structures with Aspergillus heads.

HABITAT

Syncephalastrum are primarily present in tropical or subtropical regions, where they are saprobes commonly isolated from animal dung and soil.

PATHOGENICITY

Normally considered nonpathogenic; no cases of infection have been reported in humans or animals. A common allergenic and contaminant.

RECOMMENDED MEDIA

Incubate at 25 degrees C. for 2-7 days.

REFERENCES

1. Hensyl, William R. et al. 1990. Stedman's Medical Dictionary , 25th ed. Williams & Wilkins, Baltimore, MD.

2. St. Germain, Guy and Summerbell, Richard, Ph.D. 1996. Identifying Filamentous Fungi , 1st ed. Star Publishing Company, Belmont, CA.

3. Larone, Davise, H. 1995. Medically Important Fungi, A Guide to Identification , 3rd ed. American Society for Microbiology Press, Washington, D.C.

4. The Oxoid Vade-Mecum of Microbiology . 1993. Unipath Ltd., Basingstoke, UK.

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