Observation 63667: Aspergillus lanosus Kamal & Bhargava

Approximately 100 isolates of Aspergillus lanosus were found in soil samples from a pistachio orchard including all the species of pistachio trees transplanted from their indigenous Asian country habitats to the USDA Wolfskill Germplasm Repository near Winters, Ca. These A lanosus isolates are the only ones ever found to make sclerotia (the black and silver balls in the photos) or to produce ochratoxin which was made at levels comparable to its close relative Aspergillus alliaceus. The identification of the isolates was confirmed by USDA mycologist, Maren Klich, author of “Identification of Common Aspergillus Species”. This finding was reported on p.103 of “Proceedings of the 3rd Fungal Genomics,4th Fumonisin, and 16th Aflatoxin Elimination Workshops” and is the first and only report that I am aware of Aspergillus lanosus making either sclerotia or Ochratoxin.


Grown on YES broth in 250 ml flask
Branched conidiaphores of A lanosus, seen here in this photo and the one following, were part of the original species description by Kamal & Bhargava (1969).

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Used references: The genus Aspergillus Rapier KB, Fennel DI

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By: Darvin DeShazer (darv)
2011-02-21 20:36:57 CST (-0500)

Very cool post and good photos.

Created: 2011-02-19 21:20:28 CST (-0500)
Last modified: 2017-07-20 15:11:17 CDT (-0400)
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