Eurotium herbariorum (Aspergillus glaucus)
Eurotium herbariorum (Aspergillus glaucus) Mould
Note: This fungus has both a sexual and asexual means of reproduction. When both are present, the sexual stage (teleomorph) name takes precedence over the asexual (allomorph) name. Applied here, Eurotium herbariorumtake precedence over Aspergillus glaucus. However, I will generally refer to the fungus here as Aspergillus glaucus as most reverences still continue to do so.
Ecology:
Aspergillus glaucus is a cosmopolitan fungus (worldwide distribution) and while it prefers drier environments, it can be isolated from soils, house dust, plants & dried foods. A.glaucus is also osmophilic, meaning it can grow, and perhaps prefers to grow in environments containing a higher sugar concentration. Growth is restricted or limited at 35˚C which may account for its limited pathogenicity.
Pathology:
A.glaucus is not very invasive and is rarely encountered in the clinical laboratory. It has been implicated as a cause of ocular (eye) infections, particularly after some traumatic injury. Cerebral, orofacial, cardiovascular and pulmonary infections are rare but have been reported. May also cause sinusitis (nasal) and otitis (ear) infections. May be considered an opportunistic fungus particularly with immunocompromised patients.
Macroscopic Morphology:
Growth is slow to moderate, maturing in about 7 to 21 days. Colony size expands rather slowly.
Colony colouration is media dependent but is described as a dull to deep green to a greyish turquoise, with yellow to orange areas where cleistothecia are being produced. The reverse is pale yellow to yellow. The isolate presented below failed to grow at 30˚C but grew well at ambient room temperature (~20˚C).
Eurotium herbariorum (Aspergillus glaucus)Eurotium herbariorum (Aspergillus glaucus) MouldNote: This fungus has both a sexual and asexual means of reproduction. When both are present, the sexual stage (teleomorph) name takes precedence over the asexual (allomorph) name. Applied here, Eurotium herbariorumtake precedence over Aspergillus glaucus. However, I will generally refer to the fungus here as Aspergillus glaucus as most reverences still continue to do so.Ecology: Aspergillus glaucus is a cosmopolitan fungus (worldwide distribution) and while it prefers drier environments, it can be isolated from soils, house dust, plants & dried foods. A.glaucus is also osmophilic, meaning it can grow, and perhaps prefers to grow in environments containing a higher sugar concentration. Growth is restricted or limited at 35˚C which may account for its limited pathogenicity.Pathology: A.glaucus is not very invasive and is rarely encountered in the clinical laboratory. It has been implicated as a cause of ocular (eye) infections, particularly after some traumatic injury. Cerebral, orofacial, cardiovascular and pulmonary infections are rare but have been reported. May also cause sinusitis (nasal) and otitis (ear) infections. May be considered an opportunistic fungus particularly with immunocompromised patients.Macroscopic Morphology:Growth is slow to moderate, maturing in about 7 to 21 days. Colony size expands rather slowly.Colony colouration is media dependent but is described as a dull to deep green to a greyish turquoise, with yellow to orange areas where cleistothecia are being produced. The reverse is pale yellow to yellow. The isolate presented below failed to grow at 30˚C but grew well at ambient room temperature (~20˚C).
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