RESUMO
References are analyzed concerning production and studying of transgenic plants tolerant to various kinds of abiotic stresses; mechanisms of plant protection against stresses; the genes encoding the great spectrum of compounds giving to plants ability to survive in conditions of the stresses considerably repressing development and even lethal for control plants.
Assuntos
Adaptação Fisiológica/genética , Plantas Geneticamente Modificadas , Estresse Fisiológico/genética , Transgenes , Fenômenos Fisiológicos Vegetais/genética , Proteínas de Plantas/genética , Plantas Geneticamente Modificadas/enzimologia , Plantas Geneticamente Modificadas/genética , Plantas Geneticamente Modificadas/fisiologiaRESUMO
Anters of 7 varieties of Cerasus avium (2n=16) and Fragaria grandiflora (2n==56) were cultured on Murashige-Skoog's medium. Formation of the callus tissue was observed for only one variety of sweat cherry with a frequency of 3.1-20.6%. The number of haploid cells in first transfers varied from 22 to 44% in different strains. There were two rises of mitotic activity in the callus cells. Subsequent transfers caused an increase in haploid cells. Chromosome aberrations frequency was comparatively low. No cases of induced organogenesis on any modifications of the nutrient media were found.
