图5. TmAFP转基因甘薯植株抗冻能力的检测
(A) 不同冷处理条件下植株电导率变化(CK1: 非转基因对照; CK2-4: 转空载的非抗冻植株; 4-9、4-10、4-11、4-12、44-1和54-5: TmAFP转基因株系; ** 表示差异极显著(P<0.01)); (B) -1°C条件下处理15小时后转移至室温条件, 转基因甘薯植株及对照的表型变化(Overall: 盆中同时栽种CK1、4-9、4-10、4-11、4-12; Non-transgenic: CK1放大图; Transgenic: 转基因株系4-9放大图)。Bars=5 cm

Figure 5. Detection of freezing-tolerance ability of TmAFP transgenic sweet potato plants
(A) Conductivity assay under different freeze-treatments (CK1: Non-transgenic control; CK2-4: Transgenic plants with empty vector; 4-9, 4-10, 4-11, 4-12, 44-1, 54-5: TmAFP transgenic lines; ** indicate extremely significant differences (P<0.01)); (B) Phenotypic changes of transgenic sweet potato plants and controls after 15 h treatment at -1°C (Overall: CK1, 4-9, 4-10, 4-11, 4-12 planted in the same pot; Non-transgenic: Zoomed in CK1; Transgenic: Zoomed in transgenic line 4-9). Bars=5 cm