Question

What is VAM.......
A. Endo mycorrhizae
B. Ectomycorrhizae
C. Both
D. None of the above

Answer 1

Hint: VAM is Vesicular arbuscular mycorrhizae .
It is a type of fungi which is present in a symbiotic relationship with the roots of the plant.
They are present in abundance in soil with plant roots.

Complete answer: Endo mycorrhiza is a type of fungi that presents in a symbiotic relationship with the plants and it directly penetrates within the cells of the plants and direct exchange of material takes place in the cells.
There are different types of endo mycorrhizae present around us from these mycorrhizae arbuscular types of mycorrhizae are the most important and these are further known as Vesicular arbuscular mycorrhizae.

The main characteristics of AM are:-
1. Intercellular structures within the cortex cells.
2. Intercellular hyphae in the cortex.

A mycelium that is well extended in the surrounding soil.
On the basis of structure, endo mycorrhizae are subdivided into different types.
1. Ectomycorrhizae: Ectomycorrhizae are also present in a symbiotic relationship with the symbiont. It attaches only externally with the roots of the plants and assimilates transfer between the adjacent plants.
2. It is mainly connected with Phylum Basidiomycota, Ascomycota, and rarely with Zygomycota.
3. This is not an arbuscular mycorrhiza, it is a simple ectomycorrhizae.
Hence from the above details, we come to know that the Vesicular arbuscular mycorrhizae are a type of endo mycorrhizae. It penetrates within the cells of the plants and presents in a symbiotic relationship with plants.

So the correct answer is A. Endo mycorrhizae

Note: Symbiotic relationship is defined as the mutual relationship between two organisms in which both obtain their own goals and benefits.
When fungus attaches to the plant then it is known as mycorrhizae.