Auxin

Auxins are a group of plant growth substances (often called phytohormones or plant hormones). Auxins play essential role in coordination of many growth and behavioral processes in the plant life.

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Auxins have been demonstrated to be the basic coordinative signal of plant development. Their transport throughout plants is complex, and often they also control action of other plant hormones. As a result, a plant can (as a whole) react on external conditions and adjust to them, without requiring a nervous system. They are sometimes referred to as cardinal plant hormones.

Plant growth substance: REDIRECT Plant hormone...

Phytohormone: REDIRECT Plant hormone...

Plant hormone: Plant hormones (or plant growth regulators, or PGRs) are internally secreted chemicals in plants that are used for regulating their growth. According to a standard definition, they are signal molecules produced at specific locations, occur in low concentrations, and cause altered processes in target...