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Aspergillus nidulans The U.S. Government's Occupational Safety and Health Administration [OSHA] lists Aspergillus nidulans as an allergen and an irritant and a cause of Hypersensitivity Pneumonitis and Dermatitis.
Aspergillus nidulans is a causative agent of Aspergillosis. (Information from www.doctorfungus.org @ 2005)
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Aspergillus nidulans Mold Pictures
(Image Courtesy of www.doctorfungus.org @ 2005)
Short brown, smooth conidiophores, subglobose vesicles, metulae, and phialides bearing slightly roughened globose conidia.
(Image Courtesy of www.doctorfungus.org @ 2005)
Aspergillus nidulans on Czapek dox agar showing typical plain green colony with dark red-brown cleistothecia developing within and upon the conidial layer. Reverse may be olive to drab-grey or purple-brown.
For more Aspergillus mold pictures, please visit: Aspergillus mold pictures.
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Ecology Aspergillus nidulans is a cosmopolitan fungus which is primarily isolated from soil.
Pathogenicity and Health Effects Aspergillus nidulans is an occasional causative agent of pulmonary or disseminated infection among immunocompromised patients.
Macroscopic Appearance
Ø Growth rate is slow to moderately rapid and texture of colonies varies from downy to powdery; and Ø Surface colony color is dark green or dark olive buff with orange to yellow in areas with cleistothecial formation while reverse is purplish to olive.
Microscopic Appearance
Ø Conidial heads are columnar and hyphae are septate and hyaline; Ø Conidiophores are smooth – walled, brown, and short with length ranging from 60 - 50 µm long; Ø Vesicles are hemispherical, small, with size ranging from 8 – 12 µm in diameter, with metulae and biseriated phialides occurring on the upper portion; Ø Conidia are globose, rough, and with size of 3 - 4 µm in diameter; and Ø Ascospores are reddish purple, lens – shaped, with two equatorial crests, and with size of 4 x 5 µm.
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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: please |
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