产气荚膜梭菌培养液的促芽孢形成能力。
Sporulation-promoting ability of Clostridium perfringens culture fluids.
作者信息
Shih N J, Labbé R G
机构信息
Department of Food Science, University of Massachusetts, Amherst 01003, USA.
出版信息
Appl Environ Microbiol. 1996 Apr;62(4):1441-3. doi: 10.1128/aem.62.4.1441-1443.1996.
Abstract
The culture supernatant fluids (CSFs) of 12 strains of Clostridium perfringens types A, B, C, and D stimulated sporulation of test strains NCTC 8238 and NCTC 8449 of this organism. The sporulation-promoting ability was present in vegetative and sporulating CSFs of both enterotoxin-positive (Ent+) and Ent- strains. The sporulation factor possessed a molecular weight between 1,000 and 5,000 and was heat and acid stable. This study suggests a potential role for Ent- strains in food-borne disease outbreaks caused by Ent+ strains of C. perfringens type A.
摘要
12株A型、B型、C型和D型产气荚膜梭菌的培养上清液（CSF）刺激了该菌测试菌株NCTC 8238和NCTC 8449的芽孢形成。促芽孢形成能力存在于产肠毒素阳性（Ent+）和Ent-菌株的营养型和芽孢形成型CSF中。芽孢形成因子的分子量在1000至5000之间，且对热和酸稳定。本研究表明Ent-菌株在由A型产气荚膜梭菌Ent+菌株引起的食源性疾病暴发中可能发挥作用。
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