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Type: Artigo de periódico
Title: Storage procedures for yeast preservation: phenotypic and genotypic evaluation
Author: Mariano, PDS
Goncalves, RB
Hofling, JF
Abstract: The aim of this study was to evaluate the morphological and biochemical characteristics of yeasts during storage, Six Candida, spp. standard strains were stored in agarized medium with mineral oil in distilled water, frozen at -70 degrees C and freeze dried. Strains were phenotypically characterised before being stored and then periodically for up to 18 months. Randomly Amplified Polymorphic DNA (RAPD) was carried out in time zero, 6, 12 and 18 months of storage. The viability of all samples was preserved except for the strain of Candida dubliniensis after 12 months of storage with mineral oil. No phenotypic alterations were observed in any of the methods employed. However, variations were observed in some phospholipase or proteinase activities. Changes in the RAPD patterns were not detected. These results seem to indicate that the maintenance methods tested were able to preserve the stability of the yeast phenotypic and genotypic characteristics.
Subject: yeast
Country: Itália
Editor: Inst Microbiologia
Citation: Annals Of Microbiology. Inst Microbiologia, v. 57, n. 3, n. 461, n. 465, 2007.
Rights: fechado
Date Issue: 2007
Appears in Collections:Unicamp - Artigos e Outros Documentos

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