Yersinia bacteria

Adenylyl cyclases belong to the larger class of purine nucleotide cyclases. These have been divided into classes I-VI [2]. Class I cyclases include those in gram negative bacteria, e.g. Escherichia coli and Yersinia pestis, in which cAMP levels respond to external... 

Some bacteria possess uptake systems of all the ABC types mentioned in this chapter. For example, the pathogenic microbe H. influenzae is able to sequester iron via siderophore-type systems, ferric iron systems, and metal-type systems. Similarly, strains of Yersinia use multiple routes to take up iron bound to siderophores (e.g. yersiniabactin) and haem, as well as unliganded iron by the ferric-iron-type Yfu system and the metal-type Yfe system. No iron-uptake systems of the ABC transporter type were identified in the genomes of Mycoplasma genitalium and Mycoplasma pneumoniae. In contrast, among the 19 ABC transporters of the related species Ureaplasma urealyticum six presumed different Fe3+ and/or haem transporters were identified [228]. 

The causative bacteria in the intestinal tract may be Salmonella typhimurium. Shigella flexneri. Shigella sonnei, Campylobacter jejuni, Campylobacter lari, Chlamidia trachomatis. Yersinia ente-rocolitica. Staphylococcus aureus, Hafnia alvei or the protozoan pathogen Cryptosporidium. 

Plague is caused by Yersinia pestis, bacteria that are carried through infected flea bites, direct contact, and by inhalation of infective materials. Bubonic plague is the most common form of plague and is derived from the bite of a flea that fed previously on infected animals. Pneumonic plague causes the greatest amount of mortality and is transmitted by aerosol. It... 

After aflatoxin contamination, perhaps the next most important factor that has a negative effect on human health and food quality is the presence of food borne bacteria. Several routes for reduction of the risk are currently under extensive investigation. One such means of risk reduction is the utilization of ionizing radiation treatments on meat food products. Ionizing radiation has been demonstrated to be an effective method to reduce or eliminate several species of food borne human pathogens such as Salmonella, Campylobacter, Listeria, Trichinella, and Yersinia Chapter 23). If proper processing conditions are used, it is possible to produce high quality, shelf-stable, commercially sterile muscle foods. 

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