Spore coat protein and enterotoxin synthesis in Clostridium perfringens.

نویسندگان

  • R G Labbe
  • C L Duncan
چکیده

Polyacrylamide gel profiles of Clostridium perfringens spore coat protein revealed four and occasionally five components. Pulse-chase experiments indicated that synthesis of coat protein polypeptide and enterotoxin was an early sporulation event. However, maximum synthesis occurred coincident with the onset of heat resistance.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Enterotoxin formation by different toxigenic types of Clostridium perfringens.

Sixty-nine strains of Clostridium perfringens of different toxigenic types were investigated for enterotoxin production. Enterotoxin was definitively detected only in strains of types A and C. This is the first report where enterotoxin production has been demonstrated in a toxigenic type other than type A. The exterotoxin-positive type C strains were isolated from cases of enteritis necroticans...

متن کامل

Detection and Frequency of Enterotoxin (cpa,cpe) Genes of Clostridium perfringens Isolated from Dehydrated Vegetables by PCR

Background and Objective: Clostridium perfringens is an anaerobic bacterium, commonly present in retail foods. Its enterotoxin-producing ability, short generation time, ability to grow at elevated temperatures, and spore-forming ability, allows it to survive in food-processing temperatures, and cause foodborne illness. The aim of study was to screen dehydrated vegetables contaminated with cpe a...

متن کامل

Characterization of an outbreak of Clostridium perfringens food poisoning by quantitative fecal culture and fecal enterotoxin measurement.

Published criteria for implicating Clostridium perfringens as the cause of food-poisoning outbreaks include finding a median fecal C. perfringens spore count of greater than 10(6)/g among specimens from ill persons. We investigated a food-poisoning outbreak with the epidemiologic characteristics of C. perfringens-related disease in a nursing home in which the median fecal spore count for ill pa...

متن کامل

Evaluation of Ascorbic Acid as a Quorum-sensing Analogue to Control Growth, Sporulation, and Enterotoxin Production in Clostridium perfringens

Inhibition of quorum sensing measured by autoinducer-2 (AI-2) activity was investigated in the presence and absence of ascorbic acid, an AI-2 analogue. Subsequent effects on AI-2 production, as well as growth, sporulation, and enterotoxin (C. perfringens enterotoxin [CPE]) production in Clostridium perfringens were examined. The addition of ascorbic acid to supernatants from ground beef resulte...

متن کامل

Identification of enterototxin harboring gene among Clostridium perfringens isolates with different toxin types in Iran

Background: Clostridium perfringens is known as the most widely distributed pathogenic microorganism in nature. It is an extremely important pathogen of human and domestic animals. In a commonly used classification scheme, C. perfringens is divided into five toxinotypes (A to E) based on the production of four major toxins (alpha, beta, epsilon, and iota). Enterotoxin is not usually used for C....

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Journal of bacteriology

دوره 131 2  شماره 

صفحات  -

تاریخ انتشار 1977