cleistothecium

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Related to cleistothecia: apothecium, apothecia
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Synonyms for cleistothecium

closed spore-bearing structure of some fungi (especially Aspergillaceae and Erysiphaceae) from which spores are released only by decay or disintegration

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References in periodicals archive ?
In the fall, the pathogen forms cleistothecia, which overwinter on grapevine bark in most regions.
This genus is characterized by possessing black coloured cleistothecia; broadly clavate asci, and hyaline smooth, thin walled ascospores possessing De Bary bubbles since no other cleistothecia genus is known with this characteristics, the genus represents, the first report of Coprotiella venezuelensis Delgado, Urdaneta and Pineiro in the world [5].
nidulans was found to form cleistothecia in the human body (33), clinical isolates often lose their ability to form sexual reproductive structures and ascospores (34,35).
Cleistothecia were observed after 2 weeks of incubation on potato dextrose agar and cornmeal agar (Figure 1, C).
Spores released from the over-wintering fruiting bodies of the disease known as cleistothecia can cause infections in new shoots and leaves, and wettable sulfur is very effective at stopping these infections.
The organism was subcultured on Cornmeal Agar and brown-black cleistothecia containing numerous ascospores were observed following 14 days of incubation.