Date: 26 November 2013
Secondary metabolites, structure diagram: Trivial name – dibenzylbismethylthiopiperazinedione precursor 2
Copyright: n/a
Notes:
Species: A. terreusSystematic name: 2,3-Dithia-5,7-diazabicyclo[2.2.2]octane-6,8-dione, 1,4-bis(phenylmethyl)-Molecular formulae: C18H16N2O2S2Molecular weight: 356Chemical abstracts number: 87869-07-6Selected references: Kirby, Gordon W.; Robins, David J.; Stark, W. Marshall. Structure and synthesis of cis-3,6-dibenzyl-3,6-bis(methylthio)piperazine-2,5-dione, a new metabolite of Aspergillus terreus. Journal of the Chemical Society, Chemical Communications (1983), (15), 812-13.
Images library
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Pigmentation of Aspergillus versicolor colonies ranged from pale green to greenish-beige, pink-green, dark green and brown. Reverse is usually reddish. The growth rate is usually slow. Cultured on Sabouraud dextrose agar with chloramphenicol.
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A Colonies on MEA after one week; B, C conidial heads with tip of conidiophire, x920; D conidial head, x 2330; E conidial heads x920
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A Colonies on MEA + 20% sucrose after one week; B detail of colony showing columnar conidial heads x 44 ; C conidial heads x 920; D conidia x2330
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Cultures are grown on malt extract agar for 5-7 days at 30°C.
Light microscopy-1000x stained with lacto-phenol and cotton blue.
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A Colonies on MEA +20% sucrose after one week; B ascomata x 40; C conidiophores x 920; D ascospores x2330; E ascoma x 230; F portion of ascoma with asci and ascospores, x 920.
