DESCRIPTIONS OF MEDICAL FUNGI
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98<br />
Descriptions of Medical Fungi<br />
Synonymy: Gibberella fujikuroi complex.<br />
Fusarium fujikuroi complex<br />
Fusarium fujikuroi complex consists of 50 phylogenetically distinct species including<br />
13 of which have been reported to cause human infection; F. acutatum, F. ananatum,<br />
F. andiyazi, F. fujikuroi, F. guttiforme, F. napiforme, F. nygamai, F. verticillioides, F.<br />
proliferatum, F. sacchari, F. subglutinans, F. temperatum and F. thapsinum (Guarro,<br />
2013, Al-Hatmi et al. 2015).<br />
RG-1 organisms.<br />
Morphological Descriptrion: Colonies growing rapidly, pink or vinaceous to violet;<br />
aerial mycelium abundant. Sporodochia present or absent, when present they are tan<br />
to orange. Conidiophores usually erect and branched. Macroconidia abundant, falcate<br />
to rather straight, three to five-septate, with a distinct foot-cell, 27-73 x 3.4-5.2 μm.<br />
Blastoconidia straight or slightly curved, two to three-septate, fusiform to lanceolate,<br />
with a somewhat pointed, often slightly asymmetrical apical cell and a truncate basal<br />
cell, 16-43 x 3.0-4.5 μm. Microconidia produced on polyphialides and aggregating<br />
in heads, usually unicellular, ovoidal, ellipsoidal or allantoid, 4-20 x 1.5-4.5 μm.<br />
Chlamydospores absent.<br />
Antifungal Susceptibility: F. fujikuroi complex (Castanheir et al. 2012, Australian<br />
National data); MIC µg/mL.<br />
No. 64<br />
AmB 39 3 19 15 2<br />
VORI 39 2 12 14 8 3<br />
POSA 39 4 9 7 3 16<br />
ITRA 30 2 4 2 22<br />
Fusarium incarnatum-equiseti complex<br />
Fusarium incarnatum-equiseti complex consists of 40 phylogenetically distinct species.<br />
They occasionally cause infections in humans and animals (O’Donnell et al. 2009b,<br />
Guarro 2013).<br />
RG-1 organisms.<br />
Morphological Description: Colonies growing rapidly; aerial mycelium floccose,<br />
at first whitish, later becoming avellaneous to buff-brown; reverse pale, becoming<br />
peach-coloured. Conidiophores scattered in the aerial mycelium, loosely branched;<br />
polyblastic conidiogenous cells abundant. Sporodochial macroconidia slightly<br />
curved, with foot-cell, three to seven-septate, 20-46 x 3.0-5.5 µm. Conidia on aerial<br />
conidiophores (blastoconidia) usually borne singly on scattered denticles, fusiform<br />
to falcate, mostly three to five-septate, 7.5-35 x 2.5-4.0 µm. Microconidia sparse or<br />
absent. Chlamydospores sparse, spherical, 10-12 µm diameter, becoming brown,<br />
intercalary, single or in chains.