Secondary metabolites, 3D structure: Trivial name – Bianthrone and secoanthraquinone secondary metabolite 2

Date: 26 November 2013

Secondary metabolites, 3D structure: Trivial name – Bianthrone and secoanthraquinone secondary metabolite 2

Copyright: n/a

Notes:

Species: A. wentiiSystematic name: Benzoic acid, 2-(2,6-dihydroxy-4-methylbenzoyl)-3,5-dimethoxy-, methyl esterMolecular formulae: C18H18O7Molecular weight: 346Chemical abstracts number: 77282-69-0Selected references: Assante, Gemma; Camarda, Lorenzo; Nasini, Gianluca (Ist. Patol. Veg., Univ. Milano, Milan I-20123, Italy). Gazz. Chim. Ital., 110(11-12), 629-31 (English) 1984


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  • A. versicolor by microscopy showing very long thin conidiophores.

    aspvers4

  • 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.

    aspvers3

  • 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

    aspvers2

  • 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

    A

  • Scanning electron micrograph photo of conidia. Scale bar: 1 µm.

    piperis F

  • Conidia-forming head and culture plate

    A

  • Cultures are grown on malt extract agar for 5-7 days at 30°C.
    Light microscopy-1000x stained with lacto-phenol and cotton blue.

    niger

  • 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.

    Aspergillus_chevalieri