Date: 26 November 2013
Secondary metabolites, structure diagram: Trivial name – malformins
Copyright: n/a
Notes:
Species: A. nigerSystematic name: Cyclo(D-cysteinyl-D-cysteinyl-L-valyl-D-leucyl-L-leucyl), cyclic (1®2)-disulfideMalformin AMolecular formulae: C23H39N5O5S2Molecular weight: 529.718Chemical abstracts number: 3022-92-2Selected references: Kim KW, Sugawara F, Yoshida S, Murofushi N, Takahashi N, Curtis RW. Structure of malformin B, a phytotoxic metabolite produced by Aspergillus niger. Biosci Biotechnol Biochem. 1993 May;57(5):787-91.Toxicity: mouse LD50 intraperitoneal 3100ug/kg (3.1mg/kg) EFFECTS: GASTROINTESTINAL: OTHER CHANGES. LIVER: OTHER CHANGES. KIDNEY, URETER, AND BLADDER: OTHER CHANGES Agricultural and Biological Chemistry. Vol. 39, Pg. 1325, 1975.
Images library
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Title
Legend
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Canker: Grapevine. Canker caused by A. niger on trunk of Red Globe grapes
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Blight: Fig leaf. Shoot and leaf blight caused by infection of fig fruit by A. niger
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Fresh fruit: Plum. Infection of Friar plum with A. niger, showing many white sclerotia
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Infection of a fresh Elegant Lady peach by A.niger
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Fresh fruit: Nectarine. A. niger infected Fantasia nectarines showing abundance of white sclerotia
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Fresh fruit: Fig. Sclerotia of A. niger on Calimyrna figs 6 days after inoculation
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Fresh fruit: Fig. Infection of fresh fig by A. niger (early infection)
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Fresh fruit: Fig. A. parasiticus infection on Calimyrna fig
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Fresh fruit: Fig. A. ochraceus in profichi (male) caprifig
