Biomedical subjects

O P Gorelova

Publications and source records attributed to O P Gorelova.

4 recordsLinked to original sources

PubMedDate not supplied

[The presence of Agrobacterium tumefaciens in lucerne root nodules].

Agrobacterium tumefaciens does not penetrate into nodules on the roots of lucerne with the active strain of nodule bacterium as was established with the aid of genetic markers and plant selection. A nodule, whose shape was not typical and which did not fix nitrogen, was formed on the root of lucerne inoculated with the culture of Agrobacterium tumefaciens treated with UV. A bacterial strain isolated from the nodule was identical to A. tumefaciens according to its resistance to streptomycin and several cultural properties. Upon repeated inoculation with the isolated strain, nodules were formed in 50% cases.

Medicago sativa↗

PubMedDate not supplied

[Factors of multiple resistance to antibiotics in nodule bacteria].

Multiple resistance to antibiotics (penicillin, levomycetin, neomycin, tetracycline) was found in 15% of collection strains of nodule bacteria and in strains isolated from natural environment.

Anti-Bacterial Agents↗

PubMedDate not supplied

[Rapid method of determining the capacity for symbiotic nitrogen fixation in growing plants under sterile and under natural conditions].

Explore the source record for details and available documents.

Bacteriological Techniques↗

PubMedDate not supplied

[Selection methods of nodule bacteria].

The aim of selecting nodule bacteria is to obtain stable and genetically pure strains with elevated effectiveness in the conditions of symbiosis with bean plants, sufficient viability and competing ability, which would survive in soil for a long time. The following methods have been suggested to solve this task: selection by plants using mutagenic factors; genetic markers; production of genetically homogeneous material; determination of the degree of persistance effectiveness in mutants.

Bacteriological Techniques↗