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Review
. 2023 Dec;42(12):1875-1889.
doi: 10.1007/s00299-023-03072-z. Epub 2023 Oct 3.

Design principles for synthetic control systems to engineer plants

Tawni Bull  1 , Arjun Khakhar  2
Affiliations
Review

Design principles for synthetic control systems to engineer plants

Tawni Bull et al. Plant Cell Rep. 2023 Dec.

Abstract

Synthetic control systems have led to significant advancement in the study and engineering of unicellular organisms, but it has been challenging to apply these tools to multicellular organisms like plants. The ability to predictably engineer plants will enable the development of novel traits capable of alleviating global problems, such as climate change and food insecurity. Engineering predictable multicellular phenotypes will require the development of synthetic control systems that can precisely regulate how the information encoded in genomes is translated into phenotypes. Many efficient control systems have been developed for unicellular organisms. However, it remains challenging to use such tools to study or engineer multicellular organisms. Plants are a good chassis within which to develop strategies to overcome these challenges, thanks to their capacity to withstand large-scale reprogramming without lethality. Additionally, engineered plants have great potential for solving major societal problems. Here we briefly review the progress of control system development in unicellular organisms, and how that information can be leveraged to characterize control systems in plants. Further, we discuss strategies for developing control systems designed to regulate the expression of transgenes or endogenous loci and generate dosage-dependent or discrete traits. Finally, we discuss the utility that mathematical models of biological processes have for control system deployment.

Keywords: Multicellular engineering; Plant synthetic biology; Synthetic control systems.

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