Hartigháló

Hartigháló, also known as Hartig net, is a specialized network of cells found in the vascular tissue of plants. It plays a crucial role in the transport of water and nutrients from the roots to the shoots. The Hartig net is named after the German botanist Karl Wilhelm von Hartig, who first described it in 1848.

The Hartig net is composed of living cells that are interconnected by plasmodesmata, which are channels that allow for the direct transfer of water and nutrients between cells. This network is found in the cortex of the root, where it surrounds the central cylinder of vascular tissue. The Hartig net is connected to the vascular tissue of the root through specialized cells called transfer cells.

The function of the Hartig net is to facilitate the movement of water and nutrients from the cortex to the vascular tissue. Water and nutrients are absorbed by the root hairs and transported to the cortex, where they are taken up by the Hartig net cells. These cells then transport the water and nutrients to the vascular tissue, which distributes them throughout the plant.

The Hartig net is an essential component of the plant's water and nutrient transport system, and its proper functioning is crucial for the plant's growth and development. Any disruption to the Hartig net, such as damage from pests or diseases, can have significant impacts on the plant's health and productivity.