Auxins are chemicals that control the growth of plants by promoting cell division and causing elongation in plant cells (the cells get longer).
In a new study published in Science, researchers led by Prof ... ABCB19 in the presence of different phytohormones including auxins and brassinosteroids. Results show that the ATPase activity ...
Auxins have the opposite effect in roots. This is negative phototropism. In a root the shaded side contains more auxin but grows less. This causes the root to bend away from the light.
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