Phenotypic and genotypic analysis of clonal clinical isolates of Nakaseomyces glabratus (Candida glabrata).

Clonal isolates of Nakaseomyces glabratus exhibit significant phenotypic variability in stress response and antifungal susceptibility across different patients.

• Why it matters: Understanding this variability is crucial for effective treatment, as it impacts antifungal resistance and pathogen adaptability within hosts.
• What they did: The study analyzed 35 clinical isolates from 10 patients using species-specific identification, genotyping with six molecular markers, and assessments of stress tolerance, biofilm formation, and enzymatic activity.
• The result: Findings reveal that while isolates from the same patient are clonal, they differ between patients, with some showing increased resistance linked to higher catalase activity, highlighting the need for ongoing susceptibility testing.