This is just like phototropism, in that auxin in the root inhibits growth and auxin in the stem promotes growth.

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 ...

It has long been known that auxin stimulates the growth of plants. Now it has been discovered that some other substances do the same thing, opening up new horizons in plant physiology and ...

In a phenomenon known as phototropism, plants grow towards a light source. The hormone auxin is responsible for this growth response. When light is unevenly distributed, auxin accumulates on the ...