Date: 26 November 2013
Secondary metabolites, structure diagram: Trivial name – Orlandin
Copyright: n/a
Notes:
Species: A. nigerSystematic name: [8,8′-Bi-2H-1-benzopyran]-2,2′-dione, 7,7′-dihydroxy-4,4′-dimethoxy-5,5′-dimethyl-Molecular formulae: C22H18O8Molecular weight: 410Chemical abstracts number: 69975-77-5Selected references: Orlandin: a nontoxic fungal metabolite with plant growth inhibiting properties. Cutler, Horace G.; Crumley, Farrist G.; Cox, Richard H.; Hernandez, Oscar; Cole, Richard J.; Dorner, Joe W. Georgia Coastal Plain Exp. Stn., Sci. Educ. Adm., Tifton, GA, USA. Journal of Agricultural and Food Chemistry (1979), 27(3), 592-5.
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Image 1. The chest x-ray shows extensive bilateral nodular disease, most consistent with a fungal infection, or possibly tuberculosis. He was treated with a bucket face mask with 80% oxygen and voriconazole.
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A Colonies on MEA +20 % sucrose after 2 weeks; B ascomata, x 40; C conidiophore of Aspergillus glaucus x 920;D conidiophore of Aspergillus glaucus x920 E. portion of ascoma with asci x 920. F ascospores x2330.
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Scanning electron micrographs of A. fumigatus conidia of transformants rodB-02 (b). Size bar, 100 nm.
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Scanning electron micrographs of A. fumigatus conidia of the wild-type G10 strain (a). Size bar, 100 nm.
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Scanning electron micrographs of A. fumigatus conidia of rodA rodB-26 (d).Size bar, 100 nm.
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Scanning electron micrograph of an A.fumigatus conidium of rodA-47 (c), showing the hydrophobic rodlets covering the surface. Size bar, 100 nm.
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