Characterization of Cell Surface by the Microbial Adhesion to Solvents Method.

The cell surface physicochemical properties of should influencing the dispersal and adsorption of spores and hyphae in soil and should conditioning there interactions with organic or metal substances in the bioremediation of contaminated environment. These properties are concerning surface hydrophobicity, electron donor/acceptor, and charge surface. To date, only hydrophobicity of was studied by contact angle measurements and microbial adhesion to hydrocarbons (MATH).

Failure of beta-lactam antibiotics and marked efficacy of fluoroquinolones in treatment of murine Yersinia pseudotuberculosis infection.

The treatment of yersiniosis by beta-lactams is questionable considering the proven failure of newer beta-lactams for treating murine Yersinia enterocolitica infection. Another modality of experimental treatment was performed with a virulent strain of Y. pseudotuberculosis (nonproducer of beta-lactamase) highly susceptible (in terms of MICs) to amoxicillin, cefotaxime, ceftriaxone, imipenem, doxycycline, gentamicin, and ofloxacin.

BamHI restriction endonuclease analysis of Yersinia ruckeri plasmids and their relatedness to the genus Yersinia 42- to 47-megadalton plasmid.

The plasmid profile and BamHI restriction pattern of 17 sorbitol-negative and 1 sorbitol-positive French Yersinia ruckeri strain of the American type strain were studied. The 17 sorbitol-negative strains and the American strain harbored a 62-megadalton (MDa) plasmid with an identical BamHI restriction pattern. Southern hybridization indicated that this 62-MDa plasmid is common among these various strains.

Expression of iron-regulated proteins in Yersinia species and their relation to virulence.

Under iron-starvation conditions, the different Yersinia species expressed various iron-regulated proteins. Among them, two high-molecular-weight outer membrane proteins were synthesized in high-virulence-phenotype Y. pestis, Y.