作物学报 ›› 2013, Vol. 39 ›› Issue (08): 1360-1365.doi: 10.3724/SP.J.1006.2013.01360
侯文通1,杨俐苹1,*,陈茹梅2,张少军2
HOU Wen-Tong1,YANG Li-Ping1,*,CHEN Ru-Mei2,ZHANG Shao-Jun2
摘要:
以转黑曲霉植酸酶基因(phyA2)玉米T9代纯合系及与之对应世代的阴性对照为材料,通过低磷土壤培养试验研究植酸酶基因(phyA2)对玉米利用土壤有机磷能力的影响。结果显示,在施用植酸钠和不施磷的条件下,与阴性对照相比,转基因玉米根际土壤的磷酸酶活性分别提高5.17%和5.48%,根际中等活性有机磷分别降低16.2%和28.2%;植株磷积累量分别增加140%和100%,各生长指标都明显好于阴性对照。说明遗传转化的黑曲霉植酸酶基因能提高玉米利用土壤有机磷的能力,增加玉米体内磷的积累,改善玉米的生长状况。
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