[Ethylene-induced activation of xylanase in adventitious roots of maize as a response to the stress effect of root submersion].

Submersion of roots of ten-day-old maize (Zea mays L.) seedlings was accompanied by a decrease in pO2 and an increase in pCO2 of the medium adjacent to roots. These changes stimulated ethylene evolution in intact plants.

[A histological and electron microscopic study of the kidneys in migrating ascariasis].

Histological and electron microscopic techniques were used to study the structure of the kidney in migration ascariasis caused by the single or double infection of white mice with Ascaris at an interval of 14 days. The animals were autopsied on days 5-7 after single or double infection. It was found that double infection changes occur earlier (on day 2).

[Effects of antibiotics and anti-bacterial components of preparations for local treatment of suppurative wounds on pathogens of odonto- genic infections].

The results of identification and sensitivity assay of 156 strains of pathogens causing odontogenic infections are presented. In the sensitivity assay antibacterial drugs were used. 42.