Date: 26 November 2013
Secondary metabolites, 3D structure: Trivial name – Nigragillin
Copyright: n/a
Notes:
Species: A. (species not defined)Systematic name: Piperazine, 1,2,5-trimethyl-4-[(2E,4E)-1-oxo-2,4-hexadienyl]-, (2R,5S)-rel-(+)-Molecular formulae: C13H22N2OMolecular weight: 222Chemical abstracts number: 24779-38-2Selected references: Isolation and identification of nigragillin as an insecticidal metabolite produced by Aspergillus niger. Isogai, Akira; Horii, Tetsuo; Suzuki, Akinori; Murakoshi, Shigeo; Ikeda, Katsutoshi; Sato, Shouhachi; Tamura, Saburo. Dep. Agric. Chem., Univ. Tokyo, Tokyo, Japan. Agricultural and Biological Chemistry (1975), 39(3), 739-40. CODEN: ABCHA6 ISSN: 0002-1369.
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.
