How Plants Sense and React to Gravity

Ajouté : 2026-05-16

[00:00:00]Plants have an astonishing ability [music] to detect and respond to gravity, a phenomenon known as gravitropism. Specialized cells in roots and stems contain tiny starch-filled [music] organelles called statoliths. When a plant's orientation shifts, statoliths settle to the new bottom of these cells, triggering chemical [music] signals that direct growth. Roots grow downward, anchoring the plant, while stems grow upward toward light. This precise mechanism ensures plants always find their ideal [music] orientation, even after being disturbed or replanted.