Auxin in plants

Auxin: A plant hormone that that stimulates cell elongation.

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Auxins are a powerful growth hormone produced naturally by plants. They are found in shoot and root tips and promote cell division, stem and root growth.

Plant hormones Plant hormones Auxin and gravitopism Practical activity – Effects of light or gravity on seedling growth Other plant hormones – Higher Use of plant hormones – Higher

Learn how plants release hormones that are vital for their correct growth and development and the ways these help them to respond to the environment.

Frits Warmolt Went was a Dutch biologist whose 1928 experiment demonstrated the existence of auxin in plants. His interest gradually shifted to environmental influences on plant growth. At Caltech he was the first to examine the significance of hormones in plant development and growth.

=Phototropism - Experiments= [image:http://i.imgur.com/bhr4U9t.png?1] Some of the early phototropi

Gibberellin is type of plant and fungal hormone. While its role in fungal development is not as clearly understood, it has been extensively studied in plants. Gibberellin is one of 5 major groups of plant hormones, the others being auxins, cytokinins, ethylene and abscisic acid.