Ultracytochemical localization of acid phosphatase within deliquescing asci of Chaetomium brasiliense [Fungi]

Within asci of Chaetomium brasiliense, acid phosphatase activity is localized in epiplasmic vacuoles, spore-delimiting membranes, and ascospore walls. Enzyme activity appears to increase greatly at the surfaces of maturing ascospores as breakdown of the epiplasm progresses. Maturing ascospores are p...

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Bibliographic Details
Published in:Mycologia 1984, Vol.76 (1), p.67-73
Main Author: Rosing, Wayne C.
Format: Article
Language:English
Subjects:
acid phosphatase
Asci
ascospore
Ascospores
ascus
Cell membranes
Chaetomium
Chaetomium brasiliense
Enzymes
Fungal spores
Lysosomes
Phosphatases
Phosphates
ultrastructure
Vacuoles
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Description
Summary:Within asci of Chaetomium brasiliense, acid phosphatase activity is localized in epiplasmic vacuoles, spore-delimiting membranes, and ascospore walls. Enzyme activity appears to increase greatly at the surfaces of maturing ascospores as breakdown of the epiplasm progresses. Maturing ascospores are presumed to contribute some of the enzymes responsible for the digestion of the epiplasm. The wall of the ascus deliquesces during the later stages of epiplasmic disintegration.
ISSN:0027-5514
1557-2536
DOI:10.1080/00275514.1984.12023810