Novel Observation of Hot-Cold-Hot Hemolysis Exhibited by Group B Streptococci-Reference-Cited by-同舟云学术

Novel Observation of Hot-Cold-Hot Hemolysis Exhibited by Group B Streptococci

Published:2003-02 Issue:2 Volume:41 Page:877-879
ISSN:0095-1137
Container-title:Journal of Clinical Microbiology
language:en
Short-container-title:J Clin Microbiol

Author:

Okazaki Norio¹,Osawa Ro²,Suzuki Rieko¹,Nikkawa Takayasu¹,Whiley Robert A.³

Affiliation:

1. Department of Bacteriology and Pathology, Kanagawa Prefectural Public Health Laboratory, Nakao 1-1-1, Asahi-ku, Yokohama 241-0815

2. Department of Bioscience, Graduate School of Science and Technology, Kobe University, Rokko-dai 1-1, Nada-ku, Kobe 657-8501, Japan

3. Department of Oral Microbiology, St. Bartholomew's and Royal London School of Medicine and Dentistry, London E1 2AD, United Kingdom

Abstract

ABSTRACT Six human isolates of group B streptococci (GBS) were cultured on blood agar anaerobically at 37°C for 18 h and then at 4°C for 6 h and reincubated anaerobically at 37°C for 6 h. Three of the strains showed a marked enlargement of the hemolysis zone compared with that obtained after hot-only (37°C for 18 h) or hot-cold (37°C for 18 h and then 4°C for 6 h) treatment. Subsequent broth culture experiments revealed that enhanced hemolytic activity due to hot-cold-hot treatment was observed in all 6 GBS strains when cultured in the presence of starch.

Publisher

American Society for Microbiology

Subject

Microbiology (medical)

Link

https://journals.asm.org/doi/pdf/10.1128/JCM.41.2.877-879.2003

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