FIELD: chemistry.
SUBSTANCE: invention concerns biochemistry and biotechnology and can be applied in crop production. New albumen (MF3) capable of improving plant resistance to infection diseases and plant parasites is extracted from cells of Pseudomonas fluorescence microbe. Gene mf3 is cloned, complete sequence encoding the albumen is determined, and expression vectors are constructed, which activate the said sequence or its part coding MF3 fragment retaining protection properties of the whole albumen. Introduction of obtained vector constructions into host plant cells produces plant cell cultures expressing MF3, transgenic plants resistant to infection diseases and/or plant parasites, and microbe strains producing recombinant albumens. The invention suggests application of purified MF3 albumen or its active fragment in compositions for plant protection against pathogens and vermin.
EFFECT: obtaining a substance applicable in compositions for plant protection against pathogens and vermin.
9 cl, 1 dwg, 24 tbl, 24 ex
