activity drive meaning in Chinese

活动驱力

( 2 ) deletions of four different lengths were conducted using pcr amplification with the information of sequence of pdf 1 . 2 gene promoter . these mutated promoters were fused to the gus reporter gene and introduced into tobacco plants . the results of gus activity driven by these different constructs showed that the promoter sequence between positions - 300 and - 243 ( containing a gcc box and a g box - like sequence ) was an essential ja - responsive element region to activate the expression of gus reporter gene , and the - 300 bp position was defined as the boundary of the minimal functional promoter in response to ja signaling
( 2 )对该启动子的5 ’端进行不同长度的缺失突变，突变的启动子与gus构建的融合基因在烟草中受meja诱导的瞬时表达结果表明，该启动子中- 300 - 243bp区域(有一个gccbox和一个gbox - likesequence )是其应答meja处理所必须的区域，并将- 300bp作为该启动子应答ja信号的最小区域的边界位置。