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Showing 1 to 20 of 78 for “"Clostridium Perfringens"”.
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Analysis of TpeL secretion in Clostridium perfringens
… to study. Of the pathogenic clostridia, Clostridium perfringens is relatively easy to culture and straddles the line between pathogen and commensal, making it an attractive model organism for studying clostridial toxin secretion. C. perfringens is a bacterium found naturally in soils and …
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The association of Clostridium perfringens with foal diarrhoea
Several case reports of i>Clostridium perjringens</i> involvement in equine enteric disease have not identified the prevalence and statistical association of these bacteria with foal diarrhoea. Each of five methods which favoured the recovery of <i>C. perjringens</i> in different physiological …
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The Interactions of Clostridium Perfringens With Phagocytic Cells
Clostridium perfringens is the most common cause of gas gangrene (clostridial myonecrosis), a disease that begins when ischemic tissues become contaminated with C. perfringens. C. perfringens quickly multiplies in ischemic tissues and spreads to healthy areas, leading to high levels of morbidity …
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Purification and characterization of Clostridium perfringens iota toxin
Clostridium perfringens type E iota toxin is implicated in some cases of fatal diarrhea in calves, lambs, and guinea pigs. A crossreacting "iota-like" toxin, produced by Clostridium spiroforme, is responsible for antibiotic-associated and weaning related enterotoxemias of rabbits. Antisera …
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Factors Affecting the Heat Resistance of Clostridium perfringens Spores
The bacterium Clostridium perfringens is a gram-positive anaerobe responsible for many diseases in man and other animals, the most common of which is acute food poisoning (AFP). It is estimated that nearly 240,000 cases of AFP occur each year in the U.S. The C. perfringens spore plays an important …
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A study of the "Phoenix phenomenon" in Clostridium perfringens
… <u>et al.</u> (1961) was investigated for <u>Clostridium perfringens</u> HT₉ and HT₁₀. The "Phoenix phenomenon" is described by an initial decrease in counts (Phase I), followed by an increase to the initial level of counts (Phase II), and continued increase above the initial counts to give …
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Growth, Sporulation, Activation, and Germination of Clostridium Perfringens S-40
Made available in DSpace on 2014-12-10T22:38:17Z (GMT). No. of bitstreams: 1 7121174.pdf: 4851903 bytes, checksum: 46a0bd29ca8a333cf86c70a5d71b66e2 (MD5) Previous issue date: 1971
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Sporulation and enterotoxin regulation by sigma factors in Clostridium perfringens
Clostridium perfringens is a leading cause of food poisoning annually in the United States. Ingested C. perfringens vegetative cells respond to the acidic conditions of the stomach by initiating sporulation. The process of sporulation is essential in the formation of an enterotoxin (CPE) that is …
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Image Analysis for Sliding Motility of <i>Clostridium perfringens</i>
The research investigates the sliding motility of Clostridium perfringens by employing machine learning-based image segmentation techniques and tracking to extract key quantitative characteristics of the movement of the bacteria. C. perfringens cells maintain end-to-end connections after cell …
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Localization of Type IV Pilin Polymerization Proteins in Clostridium perfringens
Clostridium perfringens is a spore-forming anaerobic Gram-positive rod which has gliding motility through type IV Pili (TFP). Since the discovery of TFP in Gram-positive bacteria is relatively new, more studies are required to understand the mechanism and interaction of the proteins of this …
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Molecular Analysis of Type IV Pilus Assembly in Clostridium perfringens
Clostridium perfringens is a Gram-positive anaerobe capable of causing disease in humans and many animals. C. perfringens is able to move across surfaces in a manner that is dependent on growth and type IV pili. Type IV pili are filaments that can be extended away from the cell by rapid …
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Development and application of a gene transfer system in Clostridium perfringens
… transformation of intact cells of C. perfringens 3624A-Rif$\sp{\rm r}$/Str$\sp{\rm r}$ with plasmids pAM$\beta$1 and pHR106 resulted in transformation efficiencies of 1.4 $\times$ 10$\sp2$ and 1.2 $\times$ 10$\sp3$ transformants/$\mu$g DNA, respectively. An examination of parameters …
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Characterization of the Components of Carbon Catabolite Repression in Clostridium perfringens
Clostridium perfringens is a versatile pathogen capable of causing a wide array of diseases, ranging from clostridial food poisoning to tissue infections such as gas gangrene. An important factor in virulence as well as in the distribution of C. perfringens is its ability to form an endospore. The …
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Studies on Virulence Factors of Clostridium perfringens and Necrotic Enteritis in Chickens
… of the poultry industry. It is caused by <em>Clostridium perfringens</em> (CP) and the pathogenesis of the disease is still unknown today. The role of alpha toxin (AT) in the pathogenesis of the disease has recently come into question. AT production and AT activity among 18 characterized CP …
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ELUCIDATING DIFFERENT CLOSTRIDIUM PERFRINGENS TYPE D VACCINE PROTOCOLS IN EWES AND LAMBS
Enterotoxemia caused by Clostridium perfringens type D epsilon toxin (CptD ETX) is a major cause of sudden mortality in lambs. Protection of neonatal lambs relies heavily on maternally derived antibodies (MDA) transferred through colostrum; however, these antibodies may also influence the lamb’s …
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Nutritional strategies to control clostridium perfringens in gastrointestinal tract of broiler chickens
… chemical composition of the diet on intestinal Clostridium perfringens populations and necrotic enteritis (NE) in broiler chickens. In the first experiment, birds were fed high concentrations of dietary protein (fish meal or soy protein concentrate) and soluble fiber (guar gum). Clinical NE was …
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Molecular Characterisation Of Clostridium Perfringens Isolates From Patients At Groote Schuur Hospital
Clostridium perfringens is a spore-forming bacterium isolated from various mammals and birds. In humans it causes infections ranging from non-lethal diarrhoea to tissue-destructive, lethal diseases. Infection originates from spores found in environmental reservoirs such as soil, faecal-contaminated …
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Type IV Pili-Dependent Secretion of Biofilm Matrix Material Proteins in Clostridium perfringens
Clostridium perfringens is a Gram-positive bacterium that secretes a biofilm matrix material. The goal of these experiments was to identify pilin mutants that are needed for secretion of the biofilm matrix and develop a functional model for a type II secretion system (T2SS) in C. perfringens. …
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