J Med Microbiol Track the topics, authors and articles important to you
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

This Article
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via CrossRef
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by McIver, C. J.
Right arrow Articles by Tapsall, J. W.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by McIver, C. J.
Right arrow Articles by Tapsall, J. W.
Agricola
Right arrow Articles by McIver, C. J.
Right arrow Articles by Tapsall, J. W.

The Journal of Medical Microbiology, Vol 26, Issue 3 211-215, Copyright © 1988 by Society for General Microbiology

JOURNAL ARTICLE

Characteristics of cysteine-requiring strains of Klebsiella isolated from urinary tract infections

C. J. McIver and J. W. Tapsall
Department of Microbiology, Prince of Wales Hospital, Sydney, New South Wales, Australia.

Clinical and bacteriological findings in seven cases of urinary tract infection with cysteine-requiring strains of Klebsiella are described. The organisms were isolated from patients with long-standing urinary tract abnormalities and grew as small (c. 1 mm) colonies on MacConkey agar. The organisms failed to grow in a minimal medium supplemented with sodium sulphate but grew when the medium was supplemented with cysteine sulphinic acid, sodium sulphide or L-cysteine. The smallest amount of cysteine required for optimal growth in a chemically defined medium was 20 mg/L. Cysteine-requiring strains of Escherichia coli had previously been shown to require a similar amount of cysteine and to be unable to reduce sulphate to sulphite; this suggests a common influence in the selection of cysteine auxotrophs in vivo. However, the amino acid inhibited the growth of E. coli at concentrations which only slightly altered growth of the Klebsiella strains. Problems with the isolation, identification and sensitivity testing of cysteine-requiring Klebsiella were also observed and methods by which these may be minimised are suggested.




HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
INT J SYST EVOL MICROBIOL J MED MICROBIOL MICROBIOLOGY J GEN VIROL ALL SGM JOURNALS
Copyright © 1988 Society for General Microbiology.