Abstract
A hallmark of biological membranes is the dynamic localization of lipids and proteins. Lipids respond to temperature reduction below a critical point with phase separation, and poikilothermic animals and also bacteria adapt their lipid content to prevent gel phase formation in membranes. In a new study, Gohrbandt etal (2022) show that reduced membrane fluidity in bacterial cells causes reversible phase separation without membrane rupture invivo, highlighting the physical robustness of biological membranes.
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