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Memórias do Instituto Oswaldo Cruz
Fundação Oswaldo Cruz, Fiocruz
ISSN: 1678-8060
EISSN: 1678-8060
Vol. 104, No. 5, 2009, pp. 775-782
Bioline Code: oc09170
Full paper language: English
Document type: Research Article
Document available free of charge

Memórias do Instituto Oswaldo Cruz, Vol. 104, No. 5, 2009, pp. 775-782

 en Genotyping of the MTL loci and susceptibility to two antifungal agents of Candida glabrata check for this species in other resources clinical isolates
Lavaniegos-Sobrino, María Teresa; Ramírez-Zavaleta, Candy Y; de León, Alfredo Ponce; Sifuentes-Osornio, José; Bobadilla-Del Valle, Miriam; Rangel-Cordero, Andrea; De Las Peñas, Alejandro & Castaño, Irene


The opportunistic fungal pathogen Candida glabrata check for this species in other resources is the second most common isolate from bloodstream infections worldwide and is naturally less susceptible to the antifungal drug fluconazole than other Candida species.

C. glabrata is a haploid yeast that contains three mating-type like loci (MTL), although no sexual cycle has been described. Strains containing both types of mating information at the MTL1 locus are found in clinical isolates, but it is thought that strains containing type a information are more common. Here we investigated if a particular combination of mating type information at each MTLlocus is more prevalent in clinical isolates from hospitalized patients in Mexico and if there is a correlation between mating information and resistance to fluconazole and 5-fluorocytosine. We found that while both types of information at MTL1 are equally represented in a collection of 64 clinical isolates, the vast majority of isolates contain a-type information at MTL2 and α-type at MTL3. We also found no correlation of the particular combination of mating type information at the three MTL loci and resistance to fluconazole.

Candida glabrata - mating type loci - MTL - clinical isolate - fluconazole - 5-fluorocytosine

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