Date: 26 November 2013
Secondary metabolites, structure diagram: Trivial name – Asparvenone derivative
Copyright: n/a
Notes:
Species: A. parvulusSystematic name: 1,4-Naphthalenedione, 6-ethyl-5-hydroxy-7-methoxy-Molecular formulae: C13H12O4Molecular weight: 232Chemical abstracts number: 56496-01-6Selected references: Metabolites of Aspergilli. II. Asparvenone and O-methylasparvenone, naphthalenones from Aspergillus parvulus. Chao, P. D.; Schiff, P. L., Jr.; Slatkin, D. J.; Knapp, J. E.; Chao, M.; Rosenstein, R. D. Sch. Pharm., Univ. Pittsburgh, Pittsburgh, PA, USA. Lloydia (1975), 38(3), 213-17.
Images library
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Legend
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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.
