We propose a role for the plant hormone auxin as an integrator of the activities of multiple plant hormones to control plant growth in response to the environment. Plants are sessile organisms and ...

Hormones are used to stimulate cell division and elongation. When pollen has fertilized ... is to spray the flower with hormones such as auxin or gibberellin. This is called parthenocarpic fruit ...

3. Stem elongation: The direction and intensity of light influence stem elongation. In a phenomenon known as phototropism, plants grow towards a light source. The hormone auxin is responsible for this ...