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Encyclopedia > Bacillus cereus
Wikipedia:How to read a taxobox
Bacillus cereus

B. cereus on sheep blood agar plate.
Scientific classification
Kingdom: Bacteria
Phylum: Firmicutes
Class: Bacilli
Order: Bacillales
Family: Bacillaceae
Genus: Bacillus
Species: cereus
Binomial name
Bacillus cereus
Frankland & Frankland 1887

Bacillus cereus is an endemic, soil-dwelling, Gram-positive, rod shaped, beta hemolytic bacteria that causes foodborne illness.[1] B. cereus bacteria are facultative aerobes, and like other members of the genus Bacillus can produce protective endospores. Image File history File links Bacillus_cereus_01. ... An agar plate streaked with microorganisms isolated from a deep-water sponge. ... Scientific classification or biological classification is a method by which biologists group and categorize species of organisms. ... Phyla/Divisions Actinobacteria Aquificae Bacteroidetes/Chlorobi Chlamydiae/Verrucomicrobia Chloroflexi Chrysiogenetes Cyanobacteria Deferribacteres Deinococcus-Thermus Dictyoglomi Fibrobacteres/Acidobacteria Firmicutes Fusobacteria Gemmatimonadetes Nitrospirae Omnibacteria Planctomycetes Proteobacteria Spirochaetes Thermodesulfobacteria Thermomicrobia Thermotogae Bacteria (singular, bacterium) are a major group of living organisms. ... Classes Bacilli Clostridia Mollicutes The Firmicutes are a division of bacteria, most of which have Gram-positive cell wall structure. ... Orders Bacillales Lactobacillales The term bacilli (singular bacillus) is used to refer to any rod-shaped bacteria. ... Families Alicyclobacillaceae Bacillaceae Caryophanaceae Listeriaceae Paenibacillaceae Planococcaceae Sporolactobacillaceae Staphylococcaceae Thermoactinomycetaceae Turicibacteraceae The Bacillales are an order of Gram-positive bacteria, placed within the Firmicutes. ... Wikipedia does not have an article with this exact name. ... Species Bacillus anthracis Bacillus cereus Bacillus coagulans Bacillus natto Bacillus subtilis Bacillus thuringiensis etc. ... In biology, binomial nomenclature is the formal method of naming species. ... In epidemiology, an infection is said to be endemic in a population when that infection is maintained in the population without the need for external inputs. ... Gram-positive bacteria are those that are stained dark blue or violet by gram staining, in contrast to gram-negative bacteria, which are not affected by the stain. ... Examples of alpha (top), beta (middle), and gamma (bottom) hemolysis on sheep blood agar plates Hemolysis is used in the empirical identification of microorganisms based on the ability of bacterial colonies grown on agar plates to break down red blood cells in the culture. ... Phyla/Divisions Actinobacteria Aquificae Bacteroidetes/Chlorobi Chlamydiae/Verrucomicrobia Chloroflexi Chrysiogenetes Cyanobacteria Deferribacteres Deinococcus-Thermus Dictyoglomi Fibrobacteres/Acidobacteria Firmicutes Fusobacteria Gemmatimonadetes Nitrospirae Omnibacteria Planctomycetes Proteobacteria Spirochaetes Thermodesulfobacteria Thermomicrobia Thermotogae Bacteria (singular, bacterium) are a major group of living organisms. ... A foodborne illness (also foodborne disease) is any illness resulting from the consumption of food. ... An aerobic organism or aerobe is an organism that has an oxygen based metabolism. ... Species Bacillus anthracis Bacillus cereus Bacillus coagulans Bacillus natto Bacillus subtilis Bacillus thuringiensis etc. ... An endospore is a dormant, tough, non-reproductive structure produced by a small number of bacteria from the Firmicute family. ...


Pathogenesis

B. cereus is responsible for a minority of foodborne illnesses (2–5%). It is known to create heavy nausea, vomiting, and abdominal periods. [2] Generally speaking, Bacillus foodborne illnesses occur due to survival of the bacterial spores when food is improperly cooked.[3] This problem is compounded when food is then improperly refrigerated, allowing the spores to germinate.[4] Bacterial growth results in production of an enterotoxin; the timing of the toxin production may be responsible for the fact that B. cereus can cause two types of food poisoning: a diarrheal type and an emetic type.[5] This page is a candidate to be moved to Wiktionary. ... Types 5-7 on the Bristol Stool Chart are often associated with diarrhea Diarrhea (in American English) or diarrhoea (in British English) is a generally unpleasant condition in which the sufferer has frequent watery, loose bowel movements (from the Greek word διάρροια; literally meaning through-flowing). Acute infectious diarrhea is a... Vomiting (also throwing up or emesis) is the forceful expulsion of the contents of ones stomach through the mouth and sometimes the nose. ...

  • The diarrheal type is associated with a wide-range of foods, has an 8–16 hour incubation time and is associated with diarrhea and gastrointestinal pain. Also know as the long-incubation form of B. cereus food poisoning, it can be difficult to differentiate from poisoning caused by Clostridium perfringens.[6]
  • In the emetic form, cooked rice that is improperly refrigerated is the most common cause, leading to nausea and vomiting 1–5 hours after consumption. This form can be difficult to distinguish from other short-term bacterial foodborne pathogens (e.g. Staphylococcus aureus).[6]

For the Physics term GUT, please refer to Grand unification theory The gastrointestinal or digestive tract, also referred to as the GI tract or the alimentary canal or the gut, is the system of organs within multicellular animals which takes in food, digests it to extract energy and nutrients, and... Binomial name Clostridium perfringens Veillon & Zuber 1898 Hauduroy 1937 Clostridium perfringens (formerly known as Clostridium welchii) is a Gram-positive, rod-shaped, anaerobic, spore-forming bacterium of the genus Clostridium[1]. is ubiquitous in nature and can be found as a normal component of decaying vegetation, marine sediment, the intestinal... Binomial name Staphylococcus aureus Rosenbach 1884 Staphylococcus aureus, the most common cause of staph infections, is a spherical bacterium, frequently living on the skin or in the nose of a healthy person, that can cause a range of illnesses from minor skin infections (such as pimples, boils, and cellulitis) and...

References

  1. ^ Ryan KJ; Ray CG (editors) (2004). Sherris Medical Microbiology, 4th ed., McGraw Hill. ISBN 0-8385-8529-9. 
  2. ^ Kotiranta A, Lounatmaa K, Haapasalo M (2000). "Epidemiology and pathogenesis of Bacillus cereus infections". Microbes Infect 2 (2): 189-98. PMID 10742691. 
  3. ^ Turnbull PCB (1996). Bacillus. In: Baron's Medical Microbiology (Barron S et al, eds.), 4th ed., Univ of Texas Medical Branch. (via NCBI Bookshelf) ISBN 0-9631172-1-1. 
  4. ^ McKillip JL (2000). "Prevalence and expression of enterotoxins in Bacillus cereus and other Bacillus spp., a literature review". Antonie Van Leeuwenhoek 77 (4): 393-9. PMID 10959569. 
  5. ^ Ehling-Schulz M, Fricker M, Scherer S (2004). "Bacillus cereus, the causative agent of an emetic type of food-borne illness". Mol Nutr Food Res 48 (7): 479-87. PMID 15538709. 
  6. ^ a b Bacillus cereus. Todar's Online Textbook of Bacteriology. Retrieved on 2006-04-10.

  Results from FactBites:
 
Bacillus - Wikipedia, the free encyclopedia (263 words)
The word "bacillus" is also used to describe any rod-shaped bacterium, and in this sense, bacilli are found in many different groups of bacteria.
Bacillus are ubiquitous in nature, including both free-living and pathogenic species.
An easy way to isolate Bacillus is by placing non-sterile soil in a test tube with water, shaking, placing in melted mannitol salts agar, and incubating at room temperature for at least a day.
Bacillus cereus (210 words)
Bacillus cereus is a spore forming bacteria that can be found in plants and soils.
cereus food poisoning is the general description, although two recognized types of illness are caused by two distinct metabolites.
Bacillus cereus contamination of seeds and vegetable sprouts grown in a home sprouting kit.
  More results at FactBites »

 
 

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