[Zoonotic infections in plague foci of the Republic of Kazakhstan].

Examining zoonotic infections in the plague foci in Kazakhstan over a decade has revealed their wide spread of vectors of pseudotuberculosis, intestinal Yersinia infection, pasteurellosis, listeriosis, salmonellosis, erysipeloid. Some causative agents under study can regulate the number of the main vector in the foci of plague, hamper the bacteriological and serological diagnosis of plague and be of predictive value in the assessment of the epizootic situation.

[Immunological characteristics of Methylomonas methanica membranes].

Immune sera were prepared against the antigenic complexes in the fractions of Methylomonas methanica cell wall, cytoplasmic membrane and intracytoplasmic membranes. The membrane fractions were studied immunologically in the reactions of agglutination, immunofluorescence and immunodiffusion. Some common features as well as differences were found among the membrane fractions in the antigenic structure.

Intracellular injection of cAMP and cGMP into snail neurones induces an increase in Na+-conductance.

Injection of cAMP and more rarely cGMP into the neurones of the snail Helix pomatia induces an increase in membrane conductance, membrane depolarization and excitation. The effect is theophylline-dependent and has a reversal potential near -10mV.