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From soil to gut: Bacillus cereus and its food poisoning toxins

Stenfors Arnesen, Lotte P ; Fagerlund, Annette ; Granum, Per Einar

FEMS microbiology reviews, 2008-07, Vol.32 (4), p.579-606 [Periódico revisado por pares]

Oxford, UK: Oxford, UK : Blackwell Publishing Ltd

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Título:
From soil to gut: Bacillus cereus and its food poisoning toxins
Autor: Stenfors Arnesen, Lotte P ; Fagerlund, Annette ; Granum, Per Einar
Assuntos: Animals ; Bacillus cereus ; Bacillus cereus - classification ; Bacillus cereus - isolation & purification ; Bacillus cereus - metabolism ; Bacillus cereus - pathogenicity ; Bacteriology ; Biological and medical sciences ; Cereulide ; cytotoxin ; Cytotoxins ; Diarrhea - microbiology ; Disease ; E coli ; Enterotoxins ; Enterotoxins - chemistry ; Enterotoxins - genetics ; Enterotoxins - metabolism ; Food ; Food contamination ; Food Microbiology ; Food poisoning ; foodborne disease ; Foodborne diseases ; Foodborne Diseases - microbiology ; foodborne illness ; Fundamental and applied biological sciences. Psychology ; Gastrointestinal Tract - microbiology ; Gene Expression Regulation, Bacterial ; Homology ; Humans ; Insects ; Intestine ; Intoxication ; Microbiology ; Miscellaneous ; Pore formation ; Pore Forming Cytotoxic Proteins - chemistry ; Pore Forming Cytotoxic Proteins - genetics ; Pore Forming Cytotoxic Proteins - metabolism ; Small intestine ; Soil Microbiology ; Soils ; Spores ; Toxins ; tripartite toxin ; Vegetative cells ; Virulence ; Vomiting - microbiology
É parte de: FEMS microbiology reviews, 2008-07, Vol.32 (4), p.579-606
Notas: http://dx.doi.org/10.1111/j.1574-6976.2008.00112.x
Editor: Fergus Priest
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Descrição: Bacillus cereus is widespread in nature and frequently isolated from soil and growing plants, but it is also well adapted for growth in the intestinal tract of insects and mammals. From these habitats it is easily spread to foods, where it may cause an emetic or a diarrhoeal type of food-associated illness that is becoming increasingly important in the industrialized world. The emetic disease is a food intoxication caused by cereulide, a small ring-formed dodecadepsipeptide. Similar to the virulence determinants that distinguish Bacillus thuringiensis and Bacillus anthracis from B. cereus, the genetic determinants of cereulide are plasmid-borne. The diarrhoeal syndrome of B. cereus is an infection caused by vegetative cells, ingested as viable cells or spores, thought to produce protein enterotoxins in the small intestine. Three pore-forming cytotoxins have been associated with diarrhoeal disease: haemolysin BL (Hbl), nonhaemolytic enterotoxin (Nhe) and cytotoxin K. Hbl and Nhe are homologous three-component toxins, which appear to be related to the monooligomeric toxin cytolysin A found in Escherichia coli. This review will focus on the toxins associated with foodborne diseases frequently caused by B. cereus. The disease characteristics are described, and recent findings regarding the associated toxins are discussed, as well as the present knowledge on virulence regulation.
Editor: Oxford, UK: Oxford, UK : Blackwell Publishing Ltd
Idioma: Inglês

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From soil to gut: Bacillus cereus and its food poisoning toxins

Stenfors Arnesen, Lotte P ; Fagerlund, Annette ; Granum, Per Einar

Oxford, UK: Oxford, UK : Blackwell Publishing Ltd

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