کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8420976 | 1545916 | 2016 | 24 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Rapid and reliable identification of waterborne Legionella species by MALDI-TOF mass spectrometry
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موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
بیوتکنولوژی یا زیستفناوری
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چکیده انگلیسی
Detection and enumeration of Legionella bacteria in drinking water is regulated in Germany by ISO 11731-2. The mandatory method for species identification employs parallel subculturing of suspicious colonies on selective media requiring the handling of a large number of cultivation plates. After changes to the drinking water quality regulation in Germany in 2012 the demand for Legionella contamination testing increased drastically. A more reliable, faster and less laborious method for species identification is therefore desirable. Matrix-assisted laser desorption ionization followed by time of flight detection mass spectrometry (MALDI-TOF MS) promises an accelerated identification of bacteria with high reliability and reduced expenditure. Our study shows that MS-based species identification results are in full concordance with cultural and biochemical detection and differentiation and that valuable additional information can be gained, even though the ISO regulation demands an extended incubation period for primary bacterial cultures that is actually in contrast to the prerequisites of the MALDI Biotyper system. In addition, the established identification algorithm is very economical and improves time-to-result. Based on our findings, the amendment of MALID-TOF MS identification to ISO11731-2 as an alternative identification method should be taken into consideration.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Microbiological Methods - Volume 127, August 2016, Pages 154-159
Journal: Journal of Microbiological Methods - Volume 127, August 2016, Pages 154-159
نویسندگان
Thorsten Dilger, Holger Melzl, André Gessner,