Secondary metabolites, structure diagram: Trivial name – Austocystin A
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Notes:
Species: A. puniceus, A. ustusSystematic name: 5H-Furo(3′,2′:4,5)furo(3,2-b)xanthen-5-one, 3a,12a-dihydro-7-chloro-4,6-dimethoxy-, (3aS,12aR)-Molecular formulae: C19H13ClO6Molecular weight: 372.76Chemical abstracts number: 55256-58-1Toxicity: In cultures of primary monkey kidney epithelial cells austocystin A was the most toxic of the austocystins and more toxic than sterigmatocystin.
PAS stain. An example of Aspergillus fumigatus.
(PAS-stained) in a patient with chronic granulomatous disease showing a 45 degree branching hypha within a giant cell. Rather bulbous hyphal ends are also seem, which is sometimes found inAspergillus spp. infections, histologically. (x800)