Gravitropism in higher plants

From: Plant Physiology | Date: June 1, 1999| Author: | Copyright information

Gravitropism in Higher Plants'

Abbreviations: CEZ, central elongation zone; DEZ, distal elongation zone.

Since 1806, we have known that plant organs use gravity as a guide for growth (Knight, 1806). The gravity-directed growth process, called gravitropism, dictates upward shoot growth to ensure a proper positioning of the leaves for efficient photosynthesis and gas exchange. It also directs roots to grow downward in soil, where they can reach out to take up the water and mineral ions required for plant growth and development.

Gravitropism has an important impact on agriculture. It allows ...

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