Thigmomorphogenesis: The Plant Response to Touch

What is thigmomorphogenesis?

Thigmomorphogenesis is a fascinating phenomenon in the world of plants, where physical touch or mechanical stimulation influences their growth and development. The term is derived from the Greek words "thigmo," meaning touch, and "morphogenesis," meaning the development of form.

How does thigmomorphogenesis help plants grow?

Plants have evolved various mechanisms to respond to touch, enabling them to adapt to their environment and optimize their growth. One of the most well-known responses to touch is thigmotropism, where plants change their direction of growth in response to touch. For example, vines like peas and beans coil around a support when touched, allowing them to climb and reach more sunlight.

In addition to directional changes, thigmomorphogenesis also influences other aspects of plant growth. Touch can induce changes in stem thickness, leaf size, and root development. These responses are thought to help plants withstand mechanical stress and improve their overall resilience.

How does thigmomorphogenesis influence farming?

Understanding thigmomorphogenesis has practical implications for agriculture and horticulture. By manipulating mechanical stimulation, growers can potentially enhance plant growth and improve crop yields. For example, at Area 2 Farms, fans blow on plants all day to mimic windy conditions, which helps us grow shorter, sturdier plants - perfect for our SILO system.