Identification of genes expressed by Cryptococcus gattii during iron deprivation
Braz. j. microbiol
;
45(3): 813-820, July-Sept. 2014. tab
Article
in English
| LILACS
| ID: lil-727007
ABSTRACT
Cryptococcus neoformans and C. gattii are pathogenic yeasts that cause life-threatening diseases in humans and animals. Iron is an essential nutrient for virtually every organism as it functions as a cofactor in numerous essential enzymatic reactions. In the literature, the competition for iron between microbes and mammalian hosts during infection is well documented. In this study, we used representational difference analysis (RDA) in order to gain a better understanding of how C. gattii responds to iron starvation. A total of 15 and 29 genes were identified as having altered expression levels due to iron depletion after 3 h and 12 h, respectively. Of these, eight genes were identified in both libraries. The transcripts were related to many biological processes, such as cell cycle, ergosterol metabolism, cell wall organization, transportation, translation, cell respiration and the stress response. These data suggest a remodeling of C. gattii metabolism during conditions of iron deprivation.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Stress, Physiological
/
Gene Expression Profiling
/
Cryptococcus gattii
/
Iron
Type of study:
Diagnostic study
Language:
English
Journal:
Braz. j. microbiol
Journal subject:
Microbiology
Year:
2014
Type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Universidade Federal de Mato Grosso/BR
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