Comparison of transient protein expression in tobacco leaves and plant suspension culture

被引:30
作者
Andrews, LB [1 ]
Curtis, WR [1 ]
机构
[1] Penn State Univ, Dept Chem Engn, University Pk, PA 16802 USA
基金
美国国家科学基金会;
关键词
D O I
10.1021/bp049569k
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
Transient gene expression is being developed to provide a more rapid means of assessing plant tissues as a protein production platform without the labor-intensive and time-consuming process of generating stably transformed transgenic plants. Transient expression of the gus-intron reporter gene was facilitated in three different tobacco species. Two different approaches to T-DNA delivery were compared: (1) infiltration of a prototrophic strain of Agrobacterium into leaves and (2) coculture of plant cell suspension cultures with an Agrobacterium auxotroph. Wounding of plant tissues with a wire brush prior to infiltration had a large positive impact on Nicotiana benthamiana leaves but not for Nicotiana tabacum or Nicotiana glutinosa. The best expression level achieved by leaf infiltration was in N. benthamiana (0.025% total soluble protein). A cell suspension culture line of N. glutinosa achieved an expression level greater than 0.04% TSP. The tissue culture-based technique therefore provides improved levels of transient expression under aseptic conditions to facilitate improvements in expression by control of the plant cell culture and Agrobacterium coculture environments.
引用
收藏
页码:946 / 952
页数:7
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