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- Title
Genotypic diversity of environmental Cryptococcus neoformans isolates from Northern Portugal.
- Authors
Ferreira, Ana Sofia; Sampaio, Ana; Maduro, Ana Paula; Silva, Inês; Teles, Fernando; Martins, Maria da Luz; Inácio, João
- Abstract
The Cryptococcus neoformans/ C. gattii species complex members are the main agents of systemic cryptococcosis. This disease is believed to be acquired from the environment via fungal cell inhalation. Often, isolates recovered from environmental and clinical sources have proven to be genotypically similar. We assessed the occurrence of C. neoformans and C. gattii in environmental substrates collected in a Portuguese region. Twenty-eight isolates were identified as C. neoformans - five from decaying Eucalyptus leaves and 23 from domestic pigeon droppings. The isolates were genotyped using a URA5-RFLP approach. The C. neoformans VNIV (53.6%, n = 15) and VNI (32.1%, n = 9) genotypes were abundantly present among environmental isolates. The hybrid VNIII (14.3%, n = 4) genotype was underrepresented and the VNII was not found. Cryptococcus gattii was also not found although some isolates yielded a positive canavanine-glycine-bromothymol blue test.
- Subjects
CRYPTOCOCCUS neoformans; FUNGAL membranes; GENOTYPE-environment interaction; EUCALYPTUS; BIRD droppings microbiology
- Publication
Mycoses, 2014, Vol 57, Issue 2, p98
- ISSN
0933-7407
- Publication type
Article
- DOI
10.1111/myc.12106