gravitropism
Gravitropism is the growth response of plants to gravity. Roots typically exhibit positive gravitropism, growing downward into the soil, while stems show negative gravitropism, growing upward toward the light. This behavior helps plants anchor themselves and access essential resources like water and nutrients.
The process is regulated by plant hormones, particularly auxins, which redistribute in response to gravity. When a plant is tilted, auxins accumulate on the lower side, promoting cell elongation and causing the plant to bend back toward its upright position. This adaptation is crucial for the plant's survival and overall health.