表面活性剂对转枯草芽孢杆菌纤溶酶(Bacillus subtilis fibrinolytic enzyme,BSFE)基因烟草根系BSFE分泌表达的调节

0.05%~8%(w/v)浓度的常用表面活性剂Triton X100、SDS、DMSO和Tween20可使转枯草芽孢杆菌纤溶酶(Bacillus subtilis fibrinolytic enzyme, BSFE)基因烟草增加BSFE在根系中的分泌或增加其在水培液中的稳定性，从而促进转BSFE 基因烟草水培液BSFE活性的增加。其单位根体积下水培液BSFE活性与培养天数呈抛物线型变化趋势，可模拟为二次回归模型。这种促进作用与表面活性剂的浓度有关。一定浓度的Triton X100、SDS、DMSO和Tween20可作为转BSFE基因烟草根系分泌表达的有效化学调节剂。

Surface Active Agent’s Regulating of Statement and Secretion of Bacillus subtilis fibrinolytic enzymic gene in Transgenic Tobacco’s Root System

The activity of the trans-BSFE gene tobacco of cultural solution can be promoted by 0.05%~8%(w/v) often-used surface active agents such as Triton X-100, SDS, DMSO and Tween20 via strengthening the ability of secretion of root system or the stability of BSFE in cultural solution. The activity of BSFE in cultural solution with its unit volume of root changed parabolicly with the days when it was cultured. It may be intimated like the quadratric regression model. The function of promotion related with the concentration of the surface-active agent. The fixed concentration of triton X100, SDS, DMSO and Tween20 can be used as the effective chemical regulator of the trans-BSFE gene tobacco root systems statement and secretion.