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Title: Purification and germination of Candida albicans and Candida dubliniensis chlamydospores cultured in liquid media
Author: Citiulo, Francesco
Moran, Gary
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Keywords: Candida albicans
Candida dubliniensis
Issue Date: 2009
Citation: Citiulo, F., Moran, G.P., Coleman, D.C. and Sullivan, D.J. 'Purification and germination of Candida albicans and Candida dubliniensis chlamydospores cultured in liquid media' in FEMS Yeast Research, 9, (7), 2009, pp 1051 - 1060
Series/Report no.: 9
FEMS Yeast Research
Abstract: Candida albicans and Candida dubliniensis are the only Candida species that have been observed to produce chlamydospores. The function of these large, thick-walled cells is currently unknown. In this report we describe the production and purification of chlamydospores from these species in defined liquid media. Staining with the fluorescent dye FUN-1 indicated that chlamydospores are metabolically active cells, but that metabolic activity is undetectable in chlamydospores that are greater than 30 days old. However, 5-15 day old chlamydospores could be induced to produce daughter chlamydospores, blastospores, pseudohyphae and true hyphae depending on the incubation conditions used. Chlamydospores that were pre-induced to germinate were also observed to escape from murine macrophages following phagocytosis, suggesting that these structures may be viable in vivo. Mycelium-attached and purified chlamydospores rapidly lost their viability in water and when subjected to dry stress, suggesting that are unlikely to act as long-term storage structures. Instead, our data suggest that chlamydospores represent an alternative specialised form of growth by C. albicans and C. dubliniensis.
Description: PUBLISHED
Appears in Collections:Dental Science (Scholarly Publications)

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