Rhizosphere

Rhizosphere

Rhizosphere
Rhizosphere is the region where soil and roots of the plants make contact or the thin layer of soil adhering to a root system after shaking and removing the loose soil.

Rhizosheath is a modification of rhizosphere, characterised. by a relatively thick soil cylinder that adheres to the plant roots. This is typical of some desert grasses.

Rhizoplane or root surface When the roots are cleaned of all the soil particles adhering to it and then plated, microorganisms can be seen developing indicating that there are certain microbes intimately associated with the root surface. Some fungi inhabit the root surface in a mycelial state, e.g. Cephalosporium, Trichoderma, Penicillium. Specific bacteria also get embedded on the surface of the root with the help of mucilaginous external layer normally present in the actively growing root system.

Rhizosphere effect The direct influence of plant roots on microbes and microbes on plant roots within the rhizosphere is known as the rhizosphere effect.

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