Auxin, by its mobile nature, is used to coordinate hormone action across tissues and organs. An emerging theme is that environmental and hormone pathways can be integrated during signaling by hubs ...

Just like phototropism, gravitropism is also caused by an unequal distribution of auxin. When a stem is placed horizontally, the bottom side contains more auxin and grows more - causing the stem ...

In a stem, the cells on the shaded side contain more auxin and grow longer than the cells on the light side. This causes the stem to grow towards the light. It is vital to note that the plant does ...