Engineering control of rhizobacteria for plant growth promotion by Green, PWL

“…By engineering bacterial genetic circuitry for rhizopine perception, we were able to improve the sensitivity of rhizopine induced gene expression by 103-fold. The rhizopine system was used to demonstrate tight transcriptional control of the NifA master transcriptional regulator of <em>nif</em> genes for nitrogen fixation <em>in vitro</em>, thereby developing a rhizopine responsive diazotrophic strain which can be assayed for plant growth promotion on rhizopine producing barley lines. …”