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利用农杆菌介导法将具有广谱抗病的葡萄糖氧化酶(Glucose Oxidase,GO)基因及抗虫半夏凝集素(Pinella Ternata Agglutinin,PTA)基因转化到烟草中,并研究了影响转化和抗性植株再生的一些因素。结果表明,基因型是影响转化和抗性植株再生的关键因素,试验所用的3个品种KY14、KY8959、TN90中,KY14转化效率最高。用于烟草转化的侵染时间以15min为宜,共培养时间以2d最佳。PCR分子检测表明,外源GO基因及PTA基因已转入到烟草KY14中。淀粉-碘化钾显色反应检测到了转基因植株产生的过氧化氢,证实GO基因已经在烟草中发挥功能。
The gene of Glucose Oxidase (GO) and Pinella Ternata Agglutinin (PTA) with broad-spectrum disease resistance were transformed into tobacco by Agrobacterium-mediated transformation. The effects of transformation and anti Some factors of sexual plant regeneration. The results showed that genotypes were the key factors affecting plant regeneration and transformation. The KY14, KY8959 and TN90 used in the experiment had the highest transformation efficiency. The infection time for tobacco transformation was 15 min, and the co-culture time was the best in 2 days. PCR molecular analysis showed that exogenous GO gene and PTA gene have been transferred into tobacco KY14. Starch-potassium iodide colorimetric reaction detected the hydrogen peroxide produced by transgenic plants, confirming that the GO gene has functioned in tobacco.