Trees Use Opposing 'Muscle-Like' Wood to Self-Correct Their Posture, Study Shows
Researchers have shown that trees can detect stem curvature and produce tension wood on opposite sides to straighten themselves.
Scientists from INRAE and the University Clermont Auvergne have uncovered a proprioceptive mechanism in trees that enables them to correct bent stems. In an experiment that removed directional cues from gravity and light, young poplar trees were placed on a horizontally rotating platform inside a uniformly illuminated sphere. After initially growing tension wood on the upper side to lift the stem, the trees later ceased that production and began forming tension wood on the opposite side, gradually straightening the trunk.
This antagonistic wood formation functions like opposing muscles, allowing the tree to monitor its own shape and actively restore balance. The discovery challenges the long-standing view that tension wood only forms on the upper side of a leaning stem and suggests broader implications for forestry, crop stability, and understanding plant resilience. Researchers published the results in New Phytologist, with the study also highlighted by Phys Org.
Why it matters
Understanding how trees self-correct their posture could improve forest management and crop stability against extreme weather.
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