Tropism
굴성
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<speciesfyi-glossary slug="tropism"></speciesfyi-glossary>Definition
A growth response in which a plant grows toward or away from a stimulus such as light, gravity, or water.
Detailed Explanation
Phototropism directs shoots toward light by asymmetric auxin distribution — auxin accumulates on the shaded side, promoting elongation there. Gravitropism aligns roots downward and shoots upward via statolith cells sensing gravity. Thigmotropism — growth in response to touch — explains how climbing plants wrap tendrils around supports. Understanding tropisms helps optimize crop growth and explains how plants navigate complex physical environments.