Root Tropisms: New Insights Leading the Growth Direction of the Hidden Half

Luigi Gennaro Izzo1, Giovanna Aronne1

  • 1Department of Agricultural Sciences, University of Naples Federico II, Via Università 100, 80055 Portici, Italy.

Related Concept Videos

Responses to Gravity and Touch02:26

Responses to Gravity and Touch

Gravitropism: Plant Responses to Gravity
41.1K
Primary and Secondary Growth in Roots and Shoots03:02

Primary and Secondary Growth in Roots and Shoots

Vascular plants, which account for over 90% of the Earth’s vegetation, all undergo primary growth—which lengthens roots and shoots. Many land plants, notably woody plants, also undergo secondary growth—which thickens roots and shoots.
59.2K
Meristems and Plant Growth02:36

Meristems and Plant Growth

Plants grow throughout their lives; this is called indeterminate growth, and it distinguishes plants from most animals. Although certain parts of plants stop growing (e.g., leaves and flowers), others grow continuously—like roots and stems.
48.2K