Date: 26 November 2013
Secondary metabolites, structure diagram: Trivial name – Asterriquinone B4
Copyright: n/a
Notes:
Species: A. terreusSystematic name: 2,5-Cyclohexadiene-1,4-dione, 2,5-bis[2-(1,1-dimethyl-2-propenyl)-1H-indol-3-yl]-3,6-dimethoxy-Molecular formulae: C34H34N2O4Molecular weight: 534Chemical abstracts number: 78723-17-8Selected references: Arai, Kunizo; Masuda, Kikuo; Kiriyama, Noriki; Nitta, Keiichi; Yamamoto, Yuzuru; Shimizu, Sakae (Fac. Pharm. Sci., Kanazawa Univ., Kanazawa 920, Japan). Chem. Pharm. Bull., 29(4), 961-9 (English) 1981.
Images library
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Title
Legend
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Necrotic lung tissue in culture
Af=Colony of Aspergillus fumigatus
B=bacterial colonies
L=lung tissue
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A photograph of part of the upper lung lobe of an immunosuppressed patient. The lung tissue shows extenive areas of necrosis due to invasive colonisation.
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A photograph of a cavity in the upper lobe of the lung of a patient with ankylosing spondylitis. Such cavitation,which may be confused with prior tuberculosis, can follow fibrosis.
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Plugs stained with Methenamine/silverActively growing mycelia of the fungus are a deep brown/black. Counterstaining shows the dense mucus of the plugs as predominantly orange.
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Sputum from an asthmatic patient showing plugs(casts). The development of plugs coincided with an increased prevalence and severity of episodes of asthma
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microscopic characters Conidiophore stipes(C)1300-2800um long:Vesicles(V)40-70um wide,clavate:Phialides(Ph) uniseriate:Conidia(Con)3.5-4.0um long,smooth walled.
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microscopic characters Conidiophore stipes(C)225-350um arising from hyphae(Hy):Vesicles(Ves)15-25um wide:Phialides(Ph)uniseriate:Conidia(Con)2.4-3.0um spherical to ovoid,roughened.
