Modeling Study Examines Survival Prospects of Mirror-Image Microbes

A modeling study published on the Biorxiv preprint server concludes that mirror-image microbes would encounter severe barriers to survival outside controlled laboratory settings. The research, led by Ricard Solé at the Santa Fe Institute, used computer simulations to test whether such organisms could establish self-sustaining populations in real ecological environments.

The models indicated that mirror organisms would require a continuous supply of mirror-chiral nutrients or engineered feeding systems.

Solé stated that mirror life would likely face very severe barriers under a broad range of ecological conditions, making successful establishment difficult. The study did not examine temporary survival under controlled laboratory conditions with engineered feeding systems. The paper remains in preprint form and has not yet undergone peer review.

A group of scientists who study mirror life issued a statement calling for revisions to the paper. Vaughn Cooper at the University of Pittsburgh noted that mirror microbes could initially grow more slowly but could adapt by using non-chiral nutrients.

Kate Adamala at the University of Minnesota said the study correctly identifies food supply as a constraint but questioned the conclusion that widespread establishment is highly unlikely. Filippa Lentzos at King’s College London said the findings do not remove the need for governance of mirror-life research.

“The right response is not panic and not dismissal. It is careful upstream governance, clear red lines around risky work and a proportionate research agenda that does not crowd out more immediate biosafety and biosecurity priorities.”