[Induced expression of Serratia marcescens ribonuclease III gene in transgenic Nicotiana tabacum L. cv. SR1 tobacco plants].

Transgenic Nicotiana tabacum L. cv. SR1 plants, characterized by an increase in the level of dsRNA-specific hydrolytic activity after induction by wounding, were obtained.

[Evaluation of Salt Tolerance of Transgenic Tobacco Plants Bearing with P5CS1 Gene of Arabidopsis thaliana].

Arabidopsis thaliana delta1-pyrroline-5-carhoxylate synthase 1 gene (P5CS1) cDNA was cloned under the control of the potent constitutive 35S RNA promoter of the cauliflower mosaic virus and transferred into genome of tobacco cv. Petit Havana SR-1 (Nicotiana tabacum L.) plants.

[Transgenic Expression of Serratia marcescens Native and Mutant Nucleases Modulates Tobacco Mosaic Virus Resistance in Nicotiana tabacum L].

Extracellular Serratia marcescens nuclease is an extremely active enzyme which non-specifically degrades RNA and DNA. Its antiviral activity was previously shown both in animals and in plants when applied exogenously. Transgenic tobacco plants (Nicotiana tabacum L cv.

[Effect of sexual maturation on DD2R gene expression in fat body of Drosophila melanogaster females].

The expression of the DD2R gene was studied by in situ hybridization in the fat body (place of the synthesis of enzymes that degrade juvenile hormone) and ovarian follicular cells (place of the synthesis of 20-hydroxyecdysone) in young and sexually mature D. melanogaster females. It was demonstrated that the DD2R gene is expressed in the fat body, and its expression is higher in young females than in sexually mature females.

[Spontaneous spectinomycin resistance mutations of the chloroplast rrn16 gene in Daucus carota callus lines].

Bioballistic transformation of carrot Daucus carota L. callus cultures with a plasmid containing the aadA (aminoglycoside 3'-adenyltransferase) gene and subsequent selection oftransformants on a selective medium containing spectinomycin (100-500 mg/l) yielded ten callus lines resistant to this antibiotic. PCR analysis did not detect exogenous DNA in the genomes of spectinomycin-resistant calluses.