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Inhibition of gene expression of trehalase enhances drought resistance in transgenic tobacco

机译:抑制海藻糖酶的基因表达增强了转基因烟草中的抗旱性

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The representative individuals, CK (non-transgenic), 121 (with pBI121 vector), 1285 (with pGSA1285 vector), T4 (with gene of trehalase, TRE), S1 (with gene of trehalose -6 - phosphate synthase, TPS), P3 (with gene of trehalose -6 - phosphate phosphatase, TPP), a3 (with anti-TRE gene), i2 (with RNAi-TRE gene), were selected for identification of drought resistance, and the Malondialdehyde (MDA), relative conductivity have been measured after water-stress during this experiment. The results showed that the transgenic tobaccos with anti-TRE and RNAi-TRE grew better than other individuals under water-stress conditions; conductivity of i2 was lower than other plants. Meantime, i2 has performance of some special features. These indicate that through application the antisense RNA and RNA interference technology to trehalase gene, it is possible to make the receptor trehalose metabolism changes. The inhibition of gene expression of trehalase can led to the accumulation of trehalose content and the enhancement of drought resistance in the transgenic tobaccos.
机译:代表性的个体,CK(非转基因),121(用PBI121载体),1285(用PGSA1285载体),T4(具有海藻糖酶的基因,TRE),S1(具有海藻糖-6 - 磷酸合酶,TPS的基因),选择P3(用海藻糖-6 - 磷酸磷酸酶,TPP),A3(用抗TRE基因),I2(用RNAi-TRE基因),用于鉴定抗旱性,以及丙二醛(MDA),相对电导率在该实验期间在水应激后被测量。结果表明,抗TRE和RNAI-TRE的转基因Tobaccos比水力胁迫条件下的其他个体更好; I2的电导率低于其他植物。同时,I2具有一些特殊功能的性能。这些表明,通过将反义RNA和RNA干扰技术应用于海藻酶基因,可以使受体海藻糖代谢变化。抑制海藻糖酶的基因表达可以导致海藻糖含量的积累和转基因烟草中的抗旱性的增强。

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