Sterigmatocystin production by nine newly described Aspergillus species in section Versicolores grown on two different media
Author:
Jurjevi? Z, Peterson SW, Solfrizzo M, Peraica M
Date: 26 February 2013
Abstract:
Nine recently described Aspergillus species and four known species in section Versicolores were tested for their ability to produce sterigmatocystin on two liquid media, Czapek w/20à‚ % Sucrose Broth and Yeast Extract Broth grown in the dark for 1à‚ week at 25à‚ à‚°C. Detection and quantification of ST were performed by reversed-phase liquid chromatography coupled with electrospray ionization ion trap mass spectrometry. Limit of detection was 3à‚ ng/mL and limit of quantification was 10à‚ ng/mL. Nine newly described Aspergillus species from various substrates, A. amoenus, A. creber, A. cvjetkovicii, A. fructus, A. jensenii, A. puulaauensis, A. subversicolor, A. tennesseensis and A. venenatus in section Versicolores were found to produce sterigmatocystin. Production was confirmed in recently collected isolates of A. protuberus and A. versicolor. A. austroafricanus and A. tabacinus did not produce sterigmatocystin.
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