B. cereus

Bacillus cereus B. cereus gastroenteritis food poisoning... 

Tributyltin(IV) derivatives of six different pharmaceutically active carboxylates were synthesized and their antibacterial activities were tested using 10 different bacteria (B. cereus, C. diphtheria, E. C. ETEC, K. pneumonia, P. mirabilis, P. aeroginosa,... 

However, to date, no AMA studies have been conducted against spore-forming microorganisms. It is very important to search for a compound having action on the development of such organisms as Bacillus subtilis and B. cereus, since these microorganisms are able to withstand pasteurization conditions and contain hydrolytic enzymes, which generate off-flavor in the food. 

Hentze H-P, Co CC, McKelvey CA, Kaler EW (2003) Templating Vesicles, Microemulsions and Lyotropic Mesophases by Organic Polymerization Processes. 226 197-223 Hergenrother PJ, Martin SE (2000) Phosphatidylcholine-Preferring Phospholipase C from B. cereus. Eunction, Structure, and Mechanism. 2ii 131 -167 Hermann C, see Kuhlmann J (2000) 211 61-116... 

Mycobacteria are more resistant than other non-sporulating bacteria to a wide range of biocides. Examples of such organisms axe Mycobacterium tuberculosis, theM avium-intracellulare (MAI) group andM. chelonae (M. chelonei). Of the bacteria, however, the most resistant of all to biocides are bacterial spores, e.g. Bacillus subtilis, B. cereus. 

Ross and Billing, by means of refractive index measurements on spores and vegetative cells of B. cereus, B. cereus var. mycoides, and B. megaterium, found the values to be very high and comparable with that of dehydrated protein. This suggested that they contained much less water than the vegetative cells. 

P, mendocina, P. aeruginosa, B. subtilis, and B. cereus adsorbed more Cd, Co, and Pb after exposure to acidic solutions than the corresponding unexposed cells. The increase in sorption following acid treatment was attributed to the irreversible displacement of structurally bound Mg and Ca by protons. The protonated sites can participate in reversible metal sorption reactions. 

The removal of Pb by Brevibacterium sp strain PBZ was markedly enhanced by the presence of glucose (Simine et al. 1998). Desorption of the metal by EDTA restored the binding capacity of the cells. U(VI) could be desorped from the cell surface of B. cereus by citric acid or sodium bicarbonate with the formation of water-soluble complexes although U(VI) was strongly bound on the cell surface of the bacteria. However, uranyl in... 

The Langmuir and Freundlich equations have often been employed to model the sorption of metal ions by bacteria. Mullen et al. (1989) used the Freundlich isotherm to describe the sorption of Cd and Cu by B. cereus, B. subtilis, E. coli and P. aeruginosa over the concentration range of 0.001-lmM. The respective values of the Freundlich constant (Kf) indicated that E. coli was most efficient at sorbing Cd2+ and Cu2+. 

Phosphatidylcholine-Preferring Phospholipase C from B. cereus. Function, Structure, and Mechanism... 

Although there are several classes of phospholipases, the phospholipase C (PLC) family is the one that has recently received intense scrutiny in the general context of signal transduction. The present account therefore details recent structural and mechanistic studies of one member of this important super family of enzymes, the phosphatidylcholine-preferring phospholipase C from B. cereus (PLCB(.). 

Fig. 10.14. MALDI spectra of protein extracts from Bacillus species (matrix a-CHCA). (a) B. anthracis (Sterne), (b) B. thuringiensis (4A1), (c) B. cereus (6E1), (d) B. sub-...

Bacillus cereus exotoxin is produced in the gastrointestinal tract after ingestion of improperly stored boiled or fried rice. B. cereus toxin is thermoresistant, as is staphylococcal enterotoxin. Symptoms of food poisoning occur up to six hours after food ingestion and are not characteristic (Butterton and Claderwood, 2001). 

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