There are many types of roots of angiosperms, which are the result of root metamorphosis development and differentiation, which are mainly divided into storage roots, aerial roots, and parasitic roots. 1. Storage roots, storage root owners
author：Brother Rabbit Encyclopedia
The roots of angiosperms
There are many types of roots in angiosperms, which are the result of root metamorphosis development and differentiation, which are mainly divided into storage roots, aerial roots and parasitic roots.
1. Storage roots Storage roots are mainly for storing nutrients, thick and juicy, commonly found in biennial or perennial herbs, according to the source of storage roots, can be divided into fleshy straight roots and tuber roots. Fleshy roots are developed from the taproot, such as the storage roots of radish, carrots, and beets; The tubers are inventitious roots or parts of lateral roots that are swollen, such as the tubers of sweet potatoes, cassava, hundreds, and dahlias.
2. Aerial roots Aerial roots are roots that grow above the ground and are exposed to the air, divided into pillar roots, breathing roots, climbing roots, etc.
Pillar roots are adventitious roots born near the stem nodes on the ground or hanging aerial roots born on branches, which not only help the plant body support the body, but also help to breathe and absorb nutrients, among which adventitious roots take corn as an example, and aerial roots take banyan trees as an example.
The soft stems of vines such as ivy, green dragon vine, lingxiao, and roshi cannot stand upright on the ground at all, and their aerial roots mainly help the stems to fall on other plants, climbing upward, called climbing roots.
The horizontal root ventilation organization of mangrove, woody, water pine and other trees is developed and has a strong respiration effect, called respiratory root.
3. Parasitic roots Similar to the golden lamp vine to extend the parasitic roots into the phloem and xylem of the host grape to absorb water and nutrients, the parasitic roots are also called inhalers, they can reach into the host plant to absorb substances and help themselves grow.