Physical characteristics of spores of food-associated isolates of the Bacillus cereus group.

نویسندگان

  • Chandrakant Ankolekar
  • Ronald G Labbé
چکیده

All 47 food-borne isolates of Bacillus cereus sensu stricto, as well as 10 of 12 food-borne, enterotoxigenic isolates of Bacillus thuringiensis, possessed appendages. Spores were moderately to highly hydrophobic, and each had a net negative charge. These characteristics indicate that spores of food-associated B. thuringiensis and not only B. cereus sensu stricto have high potential to adhere to inert surfaces.

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

Distribution and toxin genes of Bacillus cereus spores isolated from vegetables

The objectives of this study were to evaluate the prevalence of Bacillus cereus spores in vegetables and to investigate the toxigenic characteristics of spore isolates. The detection rate of spores was 26.7% (12 out of 45 samples) which possess a higher risk of food poisoning than vegetative cell. The occurrence rate of toxin genes in spore isolates were 91.7, 100 and 100% for hblCDA, nheABC an...

متن کامل

Rapid molecular techniques for detection of foodborne Bacillus cereus pathogen

Background and Objective: Bacillus cereus is responsible for several outbreaks of foodborne diseases. Therefore, the purpose of the study was to replace routine culture testing, by employing PCR directly from food to detect the bacteria and its enterotoxins. Methods: In the present study, a total of 75 Kibda sandwiches, Sausage sandwiches, Luncheon chicken, Luncheon meat and shawarma sandwiche...

متن کامل

شناسایی سویه‌های توکسین‌زای گونه‌های گروه باسیلوس سرئوس در شیر خشک نوزادان با استفاده از روش واکنش زنجیره‌ای پلیمراز

Background: In recent years, use of powdered infant formula (PIF) milk for neonates feed is increasing; therefore, the quality control (QC) of PIF products is very important. The aim of present study was detection of toxigenic Bacillus cereus species in PIF milk using PCR assay. Methods: The cross-sectional study was carried out on 125 samples of powdered infant formula milk (PIF) purchased ...

متن کامل

Isolation and identification of Bacillus cereus of dry bulk and packaged vegetables by culture and PCR

Background: Bacillus cereus is an endemic, Gram-positive, rod-shaped, motile, beta hemolytic bacterium. Some strains are harmful to humans and cause foodborne illness and it's spore is resistant against difficult condition In recent years life style and feeding habits have changed and an increase in the use of ready to eat product has raised concern about quality and health assessment. Dehydrat...

متن کامل

In defence of Bacillus thuringiensis, the safest and most successful microbial insecticide available to humanity—a response to EFSA

The Bacillus cereus group contains vertebrate pathogens such as Bacillus anthracis and Bacillus cereus and the invertebrate pathogen Bacillus thuringiensis. Microbial biopesticides based on B. thuringiensis (Bt) are widely recognized as being among the safest and least environmentally damaging insecticidal products available. Nevertheless, a recent food poisoning incident prompted a European Fo...

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:
  • Applied and environmental microbiology

دوره 76 3  شماره 

صفحات  -

تاریخ انتشار 2010