what is mycorrhiza?

what is mycorrhiza?

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4 months ago
Mycorrhizae are fungi that form partnerships with plant roots. There is a huge diversity of fungi that are capable of being mycorrhizal, and most of them seem to not require plant partnership for their own survival.
There are several different types of associations that can form between plant root and fungus. For example, some fungi remain on the outside of plant root cells, others actually reside within the plant tissue. They are very important for plant health because they allow the plant to access energy and nutrients from the soil that they otherwise would not have access to, or be less efficient at gathering without the partnership. For example, mycorrhizae can vastly increase the effective surface area of a plants roots, they can transfer carbon (energy) to young plants, and they can access phosphorous to transport into a plant that could not otherwise access this nutrient alone.
Something like 80-90% of plant species form mycorrhizal relationships, so they are clearly of great importance for plant ecology and evolution. The roles and benefits of mycorrhizal symbiosis are varied and still being discovered, as is the sheer mind-boggling diversity of mycorrhizal soil fungi.
4 months ago
A mycorrhiza is a symbiotic association between a green plant and a fungus. The plant makes organic molecules such as sugars by photosynthesis and supplies them to the fungus, and the fungus supplies to the plant water and mineral nutrients, such as phosphorus, taken from the soil. Mycorrhizas are located in the roots of vascular plants, but mycorrhiza-like associations also occur in bryophytes and there is fossil evidence that early land plants that lacked roots formed arbuscular mycorrhizal associations.

Mycorrhizas are commonly divided into ectomycorrhizas and endomycorrhizas. The two types are differentiated by the fact that the hyphae of ectomycorrhizal fungi do not penetrate individual cells within the root, while the hyphae of endomycorrhizal fungi penetrate the cell wall and inVJte the cell membrane. Endomycorrhiza includes arbuscular, ericoid, and orchid mycorrhiza, while arbutoid mycorrhizas can be classified as ectoendomycorrhizas.
4 months ago
Mycorrhiza is a a beneficial type of
fungi that grows in association with
most plant roots. ... Mycorrhizae also
release powerful enzymes that help
dissolve nutrients such as organic
nitrogen, phosphorous, and iron.
Mycorrhiza may also be known as
fungus root. The plural form is
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