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Trees use a 'muscle' to correct their posture—a newly discovered role for tension wood

A research team from INRAE and the University Clermont Auvergne has shown that trees are capable of correcting a curvature they detect in their stems through a specific biological process. In the study, young trees with bent stems were placed in an experimental set-up that prevented them from sensing their orientation relative to light and gravity. The only sense remaining to the trees was the perception of their…