DESCRIPTIONS OF MEDICAL FUNGI

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Descriptions of Medical Fungi
Mucor circinelloides v. Tiegh
20 µm 20 µm
Mucor circinelloides sporangia showing circinate sporangiophores, also note
the columella with inconspicuous collarette (arrow) and sporangiospores.
Mucor indicus Lendner
Morphological Description: Colonies are characteristically deep-yellow, aromatic
and have a maximum growth temperature of 42 O C. Sporangiophores are hyaline to
yellowish, erect or rarely circinate and repeatedly sympodially branched, with long
branches. Sporangia are yellow to brown, up to 75 µm in diameter, with diffluent
membranes. Columellae are subglobose to pyriform, often with truncate bases, up to
40 µm high. Sporangiospores are smooth-walled, subglobose to ellipsoidal, and 4-5
µm in diameter. Chlamydospores are produced in abundance, especially in the light.
Zygospores are black, spherical up to 100 µm in diameter, with stellate spines and
unequal suspensor cells. RG-1 organism.
Comment: Mucor indicus differs from other species of Mucor by its characteristic
deep-yellow colony colour, growth at over 40 O C, assimilating ethanol, but not nitrate,
and thiamine dependence (Schipper 1978, de Hoog et al. 2000, Schipper and Stalpers
2003).
Antifungal Susceptibility: M. indicus (Espinel-Ingroff et al. 2015a, Australian
National data); MIC µg/mL.
No. 16
AmB 10 1 3 4 1 1
POSA 10 2 3 3 1 1