[Characterization and in situ monitoring of atrazine-transforming bacteria]. / Kharakteristika i vydelenie in situ bakterii, transformiruiushchikh atrazin.

The possible application of the in situ hybridization method to detect the soil microflora able to transform the herbicide atrazine was investigated. Digoxigenin-labeled probes were shown to provide sufficient resolution when used either for hybridization on colonies or for in situ detection of bacteria in soil.

[Dynamic of the volume and structure of the soil bacterial complex in the presence of azobenzene]. / Dinamika chislennosti i struktury bakterial'nogo kompleksa pochvy pri vnesenii azobenzola.

Azobenzene exerted no significant effect on the dynamics and the species composition of the saprophytic soil bacterial complex, which remained almost the same as in the control and was characterized by the predominance of Curtobacterium sp., Arthrobacter globiformis, and Bacillus megaterium in all stages of succession. Some heterotrophic bacteria were found to be able to accumulate azobenzene. Bac. cereus and Bac. polymyxa degraded azobenzene during their cultivation in nutrient media.