How to train your microbe: editing environmental bacteria.

A framework for engineering environmental bacteria outlines how to assess genetic tractability, address recalcitrant systems, and select genome-editing tools to enable microbiome editing.

• Why it matters: Adapting genome editing beyond model bacteria is often slow and resource-intensive, limiting genotype–phenotype links and the design of microbes with desired traits in natural settings.
• What they did: The review synthesizes guidance for evaluating genetic tractability, overcoming challenges in difficult environmental species, and choosing among genome-editing techniques, including approaches for microbiome editing.
• The result: By enabling genome modifications delivered within complex microbial communities and hosts, these advances support more contextually informed mechanistic studies across diverse environments.

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