Adventitious root
Adventitious root
Adventitious roots (pronunciation: ad-ven-TISH-us roots) are roots that form from non-root tissues like stems, old woody roots, or leaves. They are a type of root that is not typically part of the usual root system, such as those that arise from the stem of the plant.
Etymology
The term "adventitious" is derived from the Latin word 'adventus', which means 'coming from outside'. In the context of botany, it refers to structures that develop in an unusual place.
Types of Adventitious Roots
Adventitious roots can be classified into different types based on their function and location of growth. Some of these types include:
- Prop roots: These roots provide additional support to the plant. They grow from the stem and enter the soil, helping the plant to stand upright.
- Aerial roots: These roots are found above the ground. They absorb moisture from the air and can also provide support to the plant.
- Climbing roots: These roots help the plant to climb up a support. They arise from the stem and attach themselves to the support.
- Parasitic roots: These roots are found in parasitic plants. They penetrate the host plant to absorb nutrients.
Related Terms
See Also
External links
- Medical encyclopedia article on Adventitious root
- Wikipedia's article - Adventitious root
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