Molecular and Phenotypic Reidentification of Clinical Isolates Preserved Under Mineral Oil for 34 to 64 Years in a Culture Collection in Brazil

Overview

Journal Curr Res Microb Sci

Specialty Microbiology

Date 2022 Aug 1

PMID 35909610

Authors

Thais Barreira

Danielly Correa-Moreira

Cintia Borba

Aurea Moraes

Manoel Oliveira

Affiliations

Soon will be listed here.

Abstract

Sporotrichosis is a subcutaneous mycosis worldwide distributed reaching hyperendemic proportions in Brazil. Many isolates from patients with sporotrichosis are preserved in culture collections by different methods around the world. The preservation methods are used to maintain the viability and the morphophysiological and genetic characteristics of isolates for long periods. In this study, we evaluated 34 isolates, previously, identified as by a classical identification method, initially preserved by periodical subcultures and then under mineral oil at culture collection of Oswaldo Cruz Institute/Fiocruz, to re-identify them by polyphasic identification. Our results showed that seven isolates remained viable for 34 to 64 years under oil, one isolate lost the ability to sporulate which was reverted by using a medium culture supplemented with rosebush branches and all of them were identified as by morphological, physiological, partial β-tubulin gene sequencing and phylogenetic analysis.

Citing Articles

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