Date: 26 November 2013
Secondary metabolites, structure diagram: Trivial name – terrein
Copyright: n/a
Notes:
Species: A. fischeri, A. lentulus, A. monodii, A. monodii, A. novofumigatus, A. olivicola, A. terreus, Emericella variecolor, Emericella venezuelensisSystematic name: 2-Cyclopenten-1-one, 4,5-dihydroxy-3-propenyl- 2-Cyclopenten-1-one, 4,5-dihydroxy-3-(1-propenyl)-Molecular formulae: C8H10O3Molecular weight: 154.163Chemical abstracts number: 582-46-7Selected references: Kiriyama, Noriki; Nitta, Keiichi; Sakaguchi, Yoshiaki; Taguchi, Yasuhisa; Yamamoto, Yuzuru (Fac. Pharm. Sci., Kanazawa Univ., Kanazawa, Japan). Chem. Pharm. Bull., 25(10), 2593-601 (English) 1977.Frisvad JC, Samson RA. Syst Appl Microbiol. 2004 Nov;27(6):672-80. Emericella venezuelensis, a new species with stellate ascospores producing sterigmatocystin and aflatoxin B1.Park SH, Kim DS, Kim WG, Ryoo IJ, Lee DH, Huh CH, Youn SW, Yoo ID, Park KC. Terrein: a new melanogenesis inhibitor and its mechanism. Cell Mol Life Sci. 2004 Nov;61(22):2878-85.
Images library
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BAL specimen showing hyaline, septate hyphae consistent with Aspergillus, stained with Blankophor
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Mucous plug examined by light microscopy with KOH, showing a network of hyaline branching hyphae typical of Aspergillus, from a patient with ABPA.
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Corneal scraping stained with lactophenol cotton blue showing beaded septate hyphae not typical of either Fusarium spp or Aspergillus spp, being more consistent with a dematiceous (ie brown coloured) fungus
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Corneal scrape with lactophenol cotton blue shows separate hyphae with Fusarium spp or Aspergillus spp.
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A filamentous fungus in the CSF of a patient with meningitis that grew Candida albicans in culture subsequently.
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Transmission electron micrograph of a C. neoformans cell seen in CSF in an AIDS patients with remarkably little capsule present. These cells may be mistaken for lymphocytes.
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India ink preparation of CSF showing multiple yeasts with large capsules, and narrow buds to smaller daughter cells, typical of C. neoformans
