An interlaboratory comparison of ITS2-PCR for the identification of yeasts, using the ABI Prism 310 and CEQ8000 capillary electrophoresis systems

<p>Abstract</p> <p>Background</p> <p>Currently, most laboratories identify yeasts routinely on the basis of morphology and biochemical reactivity. This approach has quite often limited discriminatory power and may require long incubation periods. Due to the increase of...

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Main Authors: Verschraegen Gerda, Boel An, De Beenhouwer Hans, Van Hauwe Peter, Van Keerberghen Anne, De Baere Thierry, Claeys Geert, Vaneechoutte Mario
Format: Article
Language:English
Published: BMC 2005-03-01
Series:BMC Microbiology
Online Access:http://www.biomedcentral.com/1471-2180/5/14
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author Verschraegen Gerda
Boel An
De Beenhouwer Hans
Van Hauwe Peter
Van Keerberghen Anne
De Baere Thierry
Claeys Geert
Vaneechoutte Mario
author_facet Verschraegen Gerda
Boel An
De Beenhouwer Hans
Van Hauwe Peter
Van Keerberghen Anne
De Baere Thierry
Claeys Geert
Vaneechoutte Mario
author_sort Verschraegen Gerda
collection DOAJ
description <p>Abstract</p> <p>Background</p> <p>Currently, most laboratories identify yeasts routinely on the basis of morphology and biochemical reactivity. This approach has quite often limited discriminatory power and may require long incubation periods. Due to the increase of fungal infections and due to specific antifungal resistence patterns for different species, accurate and rapid identification has become more important. Several molecular techniques have been described for fast and reliable identification of yeast isolates, but interlaboratory exchangeability of identification schemes of molecular techniques has hardly been studied. Here, we compared amplified ITS2 fragment length determination by an ABI Prism 310 (Applied Biosystems, Foster City, Ca.) capillary electrophoresis system with that obtained by a CEQ8000 (Beckman Coulter, Fullerton, Ca.) capillary electrophoresis system.</p> <p>Results</p> <p>Although ITS2 size estimations on both systems differed and separate libraries had to be constructed for each system, both approaches had the same discriminatory power with regard to the 44 reference strains, identical identifications were obtained for 39/ 40 clinical isolates in both laboratories and strains from 51 samples were correctly identified using CEQ8000, when compared to phenotypic identification.</p> <p>Conclusion</p> <p>Identification of yeasts with ITS2-PCR followed by fragment analysis can be carried out on different capillary electrophoresis systems with comparable discriminatory power.</p>
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spelling doaj.art-276d5e3c76de4b00af1b7946f34ded872022-12-21T21:19:10ZengBMCBMC Microbiology1471-21802005-03-01511410.1186/1471-2180-5-14An interlaboratory comparison of ITS2-PCR for the identification of yeasts, using the ABI Prism 310 and CEQ8000 capillary electrophoresis systemsVerschraegen GerdaBoel AnDe Beenhouwer HansVan Hauwe PeterVan Keerberghen AnneDe Baere ThierryClaeys GeertVaneechoutte Mario<p>Abstract</p> <p>Background</p> <p>Currently, most laboratories identify yeasts routinely on the basis of morphology and biochemical reactivity. This approach has quite often limited discriminatory power and may require long incubation periods. Due to the increase of fungal infections and due to specific antifungal resistence patterns for different species, accurate and rapid identification has become more important. Several molecular techniques have been described for fast and reliable identification of yeast isolates, but interlaboratory exchangeability of identification schemes of molecular techniques has hardly been studied. Here, we compared amplified ITS2 fragment length determination by an ABI Prism 310 (Applied Biosystems, Foster City, Ca.) capillary electrophoresis system with that obtained by a CEQ8000 (Beckman Coulter, Fullerton, Ca.) capillary electrophoresis system.</p> <p>Results</p> <p>Although ITS2 size estimations on both systems differed and separate libraries had to be constructed for each system, both approaches had the same discriminatory power with regard to the 44 reference strains, identical identifications were obtained for 39/ 40 clinical isolates in both laboratories and strains from 51 samples were correctly identified using CEQ8000, when compared to phenotypic identification.</p> <p>Conclusion</p> <p>Identification of yeasts with ITS2-PCR followed by fragment analysis can be carried out on different capillary electrophoresis systems with comparable discriminatory power.</p>http://www.biomedcentral.com/1471-2180/5/14
spellingShingle Verschraegen Gerda
Boel An
De Beenhouwer Hans
Van Hauwe Peter
Van Keerberghen Anne
De Baere Thierry
Claeys Geert
Vaneechoutte Mario
An interlaboratory comparison of ITS2-PCR for the identification of yeasts, using the ABI Prism 310 and CEQ8000 capillary electrophoresis systems
BMC Microbiology
title An interlaboratory comparison of ITS2-PCR for the identification of yeasts, using the ABI Prism 310 and CEQ8000 capillary electrophoresis systems
title_full An interlaboratory comparison of ITS2-PCR for the identification of yeasts, using the ABI Prism 310 and CEQ8000 capillary electrophoresis systems
title_fullStr An interlaboratory comparison of ITS2-PCR for the identification of yeasts, using the ABI Prism 310 and CEQ8000 capillary electrophoresis systems
title_full_unstemmed An interlaboratory comparison of ITS2-PCR for the identification of yeasts, using the ABI Prism 310 and CEQ8000 capillary electrophoresis systems
title_short An interlaboratory comparison of ITS2-PCR for the identification of yeasts, using the ABI Prism 310 and CEQ8000 capillary electrophoresis systems
title_sort interlaboratory comparison of its2 pcr for the identification of yeasts using the abi prism 310 and ceq8000 capillary electrophoresis systems
url http://www.biomedcentral.com/1471-2180/5/14
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