The impact of dendritic mitochondrial heterogeneity on synapse function

Mitochondria are energy- and metabolite-producing organelles that are differentially distributed throughout neuronal axons and dendrites to meet unique energy demands. Emerging evidence indicates that mitochondria in dendrites can be molecularly, structurally, and functionally distinct depending on cell types or even nearby synaptic inputs. This suggests that mitochondrial heterogeneity not only serves individual cell types but also plays a role in supporting the diversity of synaptic functions and connectivity patterns across different brain areas. This review highlights recent studies that contribute to our understanding of how heterogeneity in dendritic mitochondrial morphology, dynamics, and function converges to support cell- and compartment-specific metabolic demands and diverse postsynaptic properties.