Physiological Differences

Major physiological differences between the pathogenic Yersinia are listed in Table 1. One of the most striking features is the inability of Y. pestis to produce typical gram-negative O-side chains on LPS at any growth temperature.[1] Both of the enteropathogenic Yersinia are also rough when grown at mammalian body temperature but produce O-side chains on their LPS when grown at room temperature. All of these organisms are serum-resistant in the absence of O-polysaccharide.

Another notable physiological difference between Y. pestis and the enteropathogenic Yersinia is motility. Y. enterocolitica and Y. pseudotuberculosis are motile

Table 1 Comparison of Y. pestis properties with Y. pseudotuberculosis and Y. enterocolitica

Characteristic Ypsa Yptba Yea Function

Table 1 Comparison of Y. pestis properties with Y. pseudotuberculosis and Y. enterocolitica

Characteristic Ypsa Yptba Yea Function

pYV

+

+

+

YOP production and antiphagocytosis

pPst

+

Getting Started With Dumbbells

Getting Started With Dumbbells

The use of dumbbells gives you a much more comprehensive strengthening effect because the workout engages your stabilizer muscles, in addition to the muscle you may be pin-pointing. Without all of the belts and artificial stabilizers of a machine, you also engage your core muscles, which are your body's natural stabilizers.

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