[Gamma-radiation sensitivity of bacterial intergeneric conjugants Vibrio cholerae biotype Proteus X Serratia marcescens].

It was shown that among intergeneric conjugants of Vibrio cholerae biotype proteus (a donor) X Serratia marcescens (a recipient), growing in a medium with two antibiotics, most of the clones are similar, in their sensitivity to gamma-radiation, to the recipient or only differ in their higher radioresistance. There are some clones with higher radiosensitivity.

[Intergeneric bacterial conjugation in crosses of Vibrio cholerae biotype proteus X Serratia marcescens].

Intergeneric conjugants were obtained in crosses of bacteria Vibrio cholerae biotype proteus (donor) x Serratia marcescens. The study of exconjugants demonstrates the following characteristics: 1. The majority of clones isolated possess some morphological characters of the donor (colourlessness and transparency of colonies) which gradually disappear during successive transfers and return to the phenotype of recipients (red colour of colonies); 2.