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Differentiation of species of the Streptococcus bovis/equinus-complex by MALDI-TOF Mass Spectrometry in comparison to sodA sequence analyses
- Hinse, D (author)
- Vollmer, T (author)
- Erhard, M (author)
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- Welker, M (author)
- Kleesiek, K (author)
- Dreier, J (author)
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- (creator_code:org_t)
- Elsevier BV, 2011
- 2011
- English.
- In: Systematic and Applied Microbiology. - : Elsevier BV. - 0723-2020. ; 34:1, s. 52-57
- Journal article (peer-reviewed)
Abstract
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- The Streptococcus bovis/equinus complex is a heterogeneous group within the group D streptococci with important clinical relevance regarding infective endocarditis, sepsis and colon carcinoma. The taxonomic identification of species and sub-species of this complex, by the standard methods remains difficult. In the present study, we compared the cluster analysis of 88 strains of species of the S. bovis/equinus complex by sequence analysis of the manganese-dependent superoxide dismutase gene (sodA) and by Matrix Assisted Laser Desorption/Ionization-Time Of Flight Mass Spectrometry (MALDI-TOF MS). We observed a high congruence of strain grouping by MALDI-TOF MS in comparison with sodA sequence analyses, demonstrating the accuracy and reliability of MALDI-TOF MS in comparison to DNA sequencebased method. By generating mass spectra for each species and sub-species, we were able to discriminate all members of the S. bovis/equinus complex. Furthermore,wedemonstrated reliable identifications to the species level by MALDI-TOF MS, independently of cultivation conditions.
Subject headings
- NATURVETENSKAP -- Biologi -- Mikrobiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Microbiology (hsv//eng)
- NATURVETENSKAP -- Kemi -- Analytisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Analytical Chemistry (hsv//eng)
- NATURVETENSKAP -- Biologi -- Biokemi och molekylärbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Biochemistry and Molecular Biology (hsv//eng)
Keyword
- Streptococcus
- S. bovis/equinus-complex
- MALDI-TOF
- mass spectrometry
- sodA sequence
- microbial taxonomy
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- art (subject category)
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