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Phenotypic homogeneity of emetic Bacillus cereus isolates in China.
Yang, Y; Foster, J T; Yi, M; Zhan, L; Zhang, Y; Zhou, B; Jiang, J; Mei, L.
Afiliación
  • Yang Y; Department of Microbiology, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China.
  • Foster JT; Pathogen and Microbiome Institute, Northern Arizona University, Flagstaff, AZ, USA.
  • Yi M; Guangzhou Customs Technology Center, Guangzhou, China.
  • Zhan L; Department of Microbiology, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China.
  • Zhang Y; Department of Microbiology, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China.
  • Zhou B; Department of Science Technology and Information, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China.
  • Jiang J; Department of Microbiology, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China.
  • Mei L; Department of Microbiology, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China.
Lett Appl Microbiol ; 73(5): 646-651, 2021 Nov.
Article en En | MEDLINE | ID: mdl-34173253
Emetic Bacillus cereus strains produce a potent cereulide cytotoxin, which can cause acute and fatal cases of food poisoning. We isolated 18 emetic B. cereus strains from a food poisoning event, and from clinical and non-random food surveillance in China and phenotypic characteristics of haemolysis, starch hydrolysis, salicin fermentation, gelatin liquefaction, cytotoxicity, and susceptibility to antibiotics were assessed. All isolates were positive for haemolysis and gelatin liquefaction, and negative for starch hydrolysis and salicin fermentation. Their haemolytic potentials were intermediate to Bacillus anthracis and B. cereus ATCC 14579 (a non-emetic strain). All isolates were cytotoxic to CHO, Hep-2, and Vero cells, and were sensitive to ampicillin. The homogeneous phenotypes of emetic isolates from China are similar to the corresponding traits of European and Japanese isolates that have been characterized, suggesting highly similar phenotypes of emetic B. cereus worldwide.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Bacillus cereus / Eméticos Límite: Animals País/Región como asunto: Asia Idioma: En Revista: Lett Appl Microbiol Asunto de la revista: MICROBIOLOGIA Año: 2021 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Bacillus cereus / Eméticos Límite: Animals País/Región como asunto: Asia Idioma: En Revista: Lett Appl Microbiol Asunto de la revista: MICROBIOLOGIA Año: 2021 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido