Taxonomic investigations on expressed and cryptic phospho-beta-glucosidases in Enterobacteriaceae.

Journal of Bacteriology
S Schaefler, A Malamy

Abstract

In the Enterobacteriaceae, beta-glucosides are catabolized by a complex system formed of three permeases, with partly overlapping substrate specificities, and two hydrolytic enzymes, phospho-beta-glucosidase A and B, which hydrolyze only phosphorylated beta-glucosides. Some Enterobacteriaceae such as Klebsiella-Aerobacter (Enterobacter) possess the complete system; others possess only parts of it or may have a cryptic phospho-beta-glucosidase activity without permease activity. A screening test applied to strains belonging to several genera of Enterobacteriaceae showed that strains of Citrobacter, Hafnia, and Serratia exhibit a degree of similarity in phospho-beta-glucosidase activity and inducibility which could be useful in their taxonomic characterization; others, such as Aerobacter aerogenes, Erwinia, and Proteus vulgaris, are more heterologous. Owing to the presence of inducible phospho-beta-glucosidases A and B in Citrobacter, the fermentation of beta-methyl glucoside and the fermentation of arbutin in mixture with cellobiose could be of diagnostic value in the differentiation of Citrobacter from Salmonella. Wild-type strains of Escherichia coli, Shigella, and Salmonella are phenotypically similar in their inability to ca...Continue Reading

References

Mar 1, 1968·Proceedings of the National Academy of Sciences of the United States of America·C F Fox, G Wilson
Jan 1, 1968·Proceedings of the National Academy of Sciences of the United States of America·S Schaefler, I Schenkein
Oct 1, 1964·Proceedings of the National Academy of Sciences of the United States of America·W KUNDIGS ROSEMAN
Jul 1, 1950·Journal of Bacteriology·B D DAVIS, E S MINGIOLI

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Citations

Jun 1, 1982·Genetical Research·B G HallC P Romano
Jan 1, 1984·Molecular & General Genetics : MGG·F BarrasM Chippaux
Nov 4, 1977·Molecular & General Genetics : MGG·M De FeliceM Iaccarino
Feb 24, 2009·Applied and Environmental Microbiology·Girish NeelakantaKarin Schnetz
Jun 24, 2000·Research in Microbiology·E Tamburini, G Mastromei
Jul 1, 1995·Research in Microbiology·R MarascoM De Felice
Mar 1, 1977·Journal of Clinical Microbiology·H L David, M T Jahan
Nov 1, 1974·Journal of Bacteriology·I Prasad, S Schaefler

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