由于瞬时表达系统的局限性使其不利于规模化生产的应用, 本文介绍了一种新型的瞬时表达侵染技术—种子吸收法在植物中进行外源蛋白的表达。利用种子自然吸收来源于TMV病毒载体的农杆菌重悬液在番茄中成功的表达了报告基因GFP, 并优化了影响基因表达的各种因素, 包括菌液重悬液浓度和其他侵染条件。与其它侵染方法相比, 该方法具有独特优势, 如操作过程简便, 有利于外源蛋白的规模化生产, 并能够进一步扩大植物生物反应器的宿主范围。我们推测种子吸收法将有利于重组药用蛋白在植物中的工业规模化生产。
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