Synthetic genetic circuits as a means of reprogramming plant roots
The shape of a plant’s root system influences its ability to reach essential nutrients in the soil and to acquire water during drought. Progress in engineering plant roots to optimize water and nutrient acquisition has been limited by our capacity to design and build genetic programs that alter root...
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Veröffentlicht in: | Science (American Association for the Advancement of Science) 2022-08, Vol.377 (6607), p.747-751 |
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Zusammenfassung: | The shape of a plant’s root system influences its ability to reach essential nutrients in the soil and to acquire water during drought. Progress in engineering plant roots to optimize water and nutrient acquisition has been limited by our capacity to design and build genetic programs that alter root growth in a predictable manner. We developed a collection of synthetic transcriptional regulators for plants that can be compiled to create genetic circuits. These circuits control gene expression by performing Boolean logic operations and can be used to predictably alter root structure. This work demonstrates the potential of synthetic genetic circuits to control gene expression across tissues and reprogram plant growth.
Synthetic engineering offers the opportunity to build new functional circuits into existing developmental programs. Brophy
et al
. have now designed a collection of synthetic regulatory elements that they can use to control gene expression (see the Perspective by Alamos and Shih). A design-build-test strategy optimized function. With these synthetic regulatory elements, the authors redesigned root development in the model plant
Arabidopsis
, quantitatively controlling lateral root density. The approach developed here may be useful for generating precise changes in a variety of phenotypes and organisms. —PJH
Precise control over spatial patterns of gene expression can be used to modify individual aspects of a plant’s form. |
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ISSN: | 0036-8075 1095-9203 |
DOI: | 10.1126/science.abo4326 |