Chapter 36 - Introduction

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To fully appreciate this tutorial, you should be familiar with the concepts of:
• Plant growth patterns
• Flower and fruit development
• Phototropism, gravitropism, heliotropism, and thigmatropism

After this tutorial, you will be able to describe:
• The five main groups of plant hormones
• Effects of hormones on plant growth and development
• Five identified signaling molecules
• Effects of signaling molecules on plant growth and development

How do hormones affect plant growth and development?

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Molecules that influence plants
Effects of hormones
Signaling molecules
Summary

Throughout a plant's life cycle, its growth and development respond to environmental factors. Biological molecules produced by the plant itself regulate these responses. These molecules are hormones and signaling molecules, chemicals important in the adaptation of the plant to its environment.