| 摘要 |
FIELD: chemistry.SUBSTANCE: disclosed is a nucleic acid construct for expression in a plant cell in order to increase efficiency of use of nitrogen by the plant, said construct containing a nucleic acid sequence at least 85% identical to a nucleotide sequence corresponding to SEQ ID NO: 70, and a promoter sequence capable of directing transcription of the nucleic acid sequence in a host cell. Disclosed is an isolated polypeptide for expression in a plant cell in order to increase efficiency of use of nitrogen by the plant, said construct containing an amino acid sequence at least 85% homologous to an amino acid sequence corresponding to SEQ ID NO: 1186. Also disclosed is a plant cell for obtaining a mature plant having high tolerance to stress conditions through more efficient use of nitrogen by the plant. The invention discloses a method of increasing plant tolerance to stress conditions, a method of increasing biomass, vitality and/or yield of the plant, as well as a method of increasing efficiency of use and/or absorption of fertiliser by the plant. Said methods involve providing expression, in plant cells, of an exogenous polynucleotide which encodes a polypeptide having an amino acid sequence at least 85% homologous to the amino acid sequence corresponding to SEQ ID NO: 1186.EFFECT: invention increases efficiency of use of nitrogen by the plant, thereby increasing tolerance of the plant to stress conditions.21 cl, 10 dwg, 50 tbl, 12 ex |
