The team has also looked at the effects of auxin production for algae and how the hormone helps it communicate with bacteria ...

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.

However, certain bacteria can hack this system. Another key player in this evolutionary back-and-forth are plant hormones called auxins. Auxins are an important class of hormones that affect how ...