Promoters that respond to otherwise inactive chemicals will enhance the tools available for analyzing gene function in vivo and for altering defined traits of plants at will. Approaches to provide such tools have yielded plant promoters that respond to compounds activating defense genes. In addition, the transfer of regulatory elements from prokaryotes, insects, and mammals has opened new avenues to construct chemically inducible promoters that respond to signals normally not recognized by plants. This review describes results and applications of these two approaches.


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  • Article Type: Review Article
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