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Aspergillus granulosus Aspergillus granulosus is a causative agent of Aspergillosis. (Information from www.doctorfungus.org @ 2005)
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Aspergillus granulosus Mold Picture
(Image Courtesy of www.doctorfungus.org @ 2005)
Take note of the smooth, pale brown conidiophore and globose, delicately roughed conidia obscuring the small, biseriate vesicle. For more Aspergillus mold pictures, please visit: Aspergillus mold pictures.
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Pathogenicity and Health Effects Aspergillus granulosus is a causative agent of disseminated infection among cardiac transplant recipients.
Macroscopic Appearance
Ø Growth rate is moderate to rapid and texture of colonies varies from plane to irregularly furrowed, frequently floccose, with uneven texture, and have a granular appearance due to formation of small hülle cell aggregates which may at first resemble sclerotia; and Ø Surface colony color is buff to ochraceous to dull brown while reverse is dark yellow to reddish brown; and Ø Presence of pale blue – green colored conidial heads may contribute color pigmentation; however, in some strains their production may be minimal that this color pigmentation may not manifest.
Microscopic Appearance
Ø Conidial heads are radiate and hyphae are septate and hyaline; Ø Conidiophores are thin – walled, pale brown, smooth, and are 350 - 500 µm long as described by Raper and Fennell, on the other hand, the Fungus Testing Laboratory has measured an isolate with very long conidiophores of up to over 1 mm; Ø Vesicles are biseriate, elliptical, with diameter of 12 – 18 µm, and with almost the entire surface being covered; Ø Conidia are globose, finely roughened, pale green, and with diameter of 3.5 – 5.5 µm; and Ø Hülle cells are sub – globose to ovoid to quite elongate, with size ranging from 12 – 30 µm long, appear numerous in freshly isolated chains, and occur in colorless clusters.
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The mycological information http://www.doctorfungus.org http://www.mycology.adelaide.edu.au http://www.mycology.net http://www.clinical-mycology.com http://www.botany.utoronto.ca http://www.med.sc.edu http://www.tigr.org http://www.pangloss.ucsfmedicalcenter.org http://www.dermnz.org http://www.wadsworth.org http://botit.botany.wisc.edu
A Clinical Laboratory Handbook: Identifying Filamentous Fungi by St.
Germain, Guy and R. Summerbell. |
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