Horizontal Gene Transfer and Environmental Release of Engineered Microbes with Kiara Reyes Gamas

On this episode of The Climate Biotech Podcast, Paul Reginato is joined by Kiara Reyes Gamas, environmental synthetic biologist and non-resident postdoctoral scholar at Rice University's Baker Institute. Alongside her bench science, she has consistently engaged with the social and governance dimensions of synthetic biology, which shapes how she thinks about engineering microbes for environmental release.Much of Kiara’s work has focused on horizontal gene transfer, the process by which microbes naturally swap DNA throughout the environment. It is how antibiotic resistance spreads, and it is one of the central reasons regulators worry about releasing engineered microbes. The problem is that we have very poor measurements of how often it actually happens in natural settings in complex communities, or which organisms participate. Kiara’s research also suggests that the field's default toward biocontainment may be missing the point for environmental applications. A microbe engineered to clean up an oil spill has to interact with the environment to do its job. The more useful questions are about which genes are safe to introduce, how engineered organisms behave under selective pressure in microbial communties, how to integrate human communities into the governance of these technologies, and whether the regulatory scrutiny applied to recombinant DNA should extend to any non-native microbe being released. Listen to learn how RNA-based barcoding extends the reach of horizontal gene transfer measurements across microbial species, what ecology has to teach synthetic biologists about environmental release, and why Kiara argues that community co-design is an engineering requirement rather than a regulatory checkbox. Send us Fan Mail