Oct 1, 1976

Rapid diagnosis of Enterobacteriaceae. I. Detection of bacterial glycosidases

Acta Pathologica Et Microbiologica Scandinavica. Section B, Microbiology
M Kilian, P Bülow

Abstract

The paper describes a number of tests for the rapid detection of glycosidases including alpha-glucosidase, beta-glucosidase, beta-glucuronidase, beta-xylosidase and alpha-fucosidase. The methods use heavy suspensions of viable but non-multiplying bacteria in a buffered solution of a chromogenic substrate. The results of the tests are readable within 4 h. The application of these tests to a collection of 633 strains of Enterobacteriaceae and Vibrionaceae demonstrates that some of the tests may be valuable additions to the present tests available for the identification of bacteria belonging to these families. beta-glucuronidase activity was observed only in strains of the Escherichia-Shigella group. 97 per cent of the Escherichia strains possessed beta-glucuronidase activity. beta-xylosidase activity was almost completely restricted to strains of the Klebsiella-Enterobacter group in addition to Yersinia strains. None of the strains possessed alpha-fucosidase activity.

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Mentioned in this Paper

Escherichia
Buffers
Enterobacteriaceae
Vibrionaceae
Alpha-L-fucosidase Activity
Xylan 1,4-beta-xylosidase Activity
Yersinia <bacteria>
Yersinia Infections
Bacteriological Techniques
Yersinia

About this Paper

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