ABSTRACT
Plant organs respond to different environmental signals such as gravity and light. Gravity gives plants proper orientation, resulting in the proper shape and form that we take for granted; the roots grow down into the soil and the shoots grow up toward the light. Under microgravity conditions, as in space, plant growth patterns lack a clear sense of direction. The understanding of gravitropism has important agricultural implications. Gravitropism allows plants to compete for the available resources in their immediate environment, which helps to maximize their growth and development under varying conditions.
