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Rust and smut disease of plants are caus...

Rust and smut disease of plants are caused by fungi belonging to

A

`{:("Rust","Smut"),("Puccinia","Ustilago"):}`Ascomycetes

B

`{:("Rust","Smut"),("Puccinia","Ustilago"):}` Basidiomycetes

C

`{:("Smut","Rust"),("Puccinia","Ustilago"):}` Basidiomycetes

D

`{:("Smut","Rust"),("Puccinia","Ustilago"):}` Ascomycetes

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question regarding the causative agents of rust and smut diseases in plants, we can break down the information step by step: ### Step-by-Step Solution: 1. **Identify the Diseases**: The question mentions two specific diseases: rust and smut. 2. **Identify the Causative Agents**: - **Rust Disease**: This disease is primarily caused by fungi belonging to the genus **Puccinia**. For example, **Puccinia graminis** is known to cause wheat rust. - **Smut Disease**: This disease is caused by fungi of the genus **Ustilago**. An example is **Ustilago scitaminea**, which causes smut in sugarcane. 3. **Classify the Fungi**: - Both **Puccinia** and **Ustilago** belong to the class **Basidiomycetes**. This class includes fungi that reproduce sexually via basidiospores. 4. **Select the Correct Option**: Based on the information gathered: - Rust is caused by **Puccinia** (Basidiomycetes). - Smut is caused by **Ustilago** (Basidiomycetes). - Therefore, the correct answer is that both diseases are caused by fungi belonging to the class **Basidiomycetes**. ### Final Answer: Rust and smut diseases of plants are caused by fungi belonging to the class **Basidiomycetes**. ---
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