Green chemicals: How DNA assembly tech streamlines microbe engineering to boost urban farming

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Researchers at SMART, MIT’s research enterprise in Singapore, and National University of Singapore (NUS) have developed a technology that greatly accelerates the genetic engineering of microbes that can be used to manufacture chemicals used for urban farming. The new technology will result in a faster, cheaper, more accurate, and near-scarless plasmid construction, using standard and reusable parts, that is compatible with most popular DNA assembly methods.

Explained in a paper titled “A standard for near-scarless plasmid construction using reusable DNA parts,” which will be published …. in …. Nature Communications, the project is part of the SMART Interdisciplinary Research Group (IRG) — Disruptive & Sustainable Technologies for Agricultural Precision (DiSTAP).

Kang Zhou, a DiSTAP Principal Investigator …. and Xiaoqiang Ma, a postdoctoral associate at SMART, led the development of the technology while working on ways to support their colleagues who were working on enhancing vegetable yield in the country’s urban farms. They were exploring ways [to] create fertilizers, nutrients and non-synthetic pesticides for urban farms, in the form of small molecules.

“The objective of this study was to create a technology that can engineer microbes faster and at a lower cost,” said Ma. “Current technology is expensive and time-consuming. Researchers have to order customized materials from suppliers which takes a while to arrive. They also often use only 1% of the material, leading to wastage. As each material is customized, researchers have to re-order each time, which further delays and add costs to the production.”

Related article:  Making a push for synthetic biology in Europe

The new Guanine/Thymine (GT) DNA assembly technology significantly changes things by enabling genetic engineers to reuse genetic materials. It provides a simple method to define the biological parts as standard DNA parts ….

“We anticipate that the huge cost and time savings will enable the development of new fermentation processes that can manufacture green chemicals to make urban farming in Singapore more efficient and safer” [said Zhou.] “This technology is also applicable to all genetic engineering fields outside of agriculture, and we are actively looking at ways we can deploy it for easy access.”

In addition to commercialization plans, the researchers are also planning to set up an e-commerce platform which can quickly create and distribute these genetic materials to researchers around the world. It will be the first such platform for reusable genetic engineering materials in the world.

Read full, original article: Microbial manufacturing: Genetic engineering breakthrough for urban farming

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