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In plants, which of the following diseas...

In plants, which of the following disease is caused by bacteria?

A

Mosaic disease of tobacco

B

Citrus canker

C

Late blight's of potato

D

Potato spindle tuber disease

Text Solution

AI Generated Solution

The correct Answer is:
To determine which of the diseases listed is caused by bacteria, we will analyze each option one by one. ### Step-by-Step Solution: 1. **Identify the Diseases**: - We have four diseases to consider: - Mosaic disease of tobacco - Citrus canker - Late blight of potato - Potato spindle tuber disease 2. **Analyze Each Disease**: - **Mosaic disease of tobacco**: - This disease is caused by the Tobacco Mosaic Virus (TMV). Since it is caused by a virus, it is not caused by bacteria. - **Citrus canker**: - This disease is characterized by lesions on various citrus species and is caused by *Xanthomonas citri*, which is a bacterium. Therefore, this disease is indeed caused by bacteria. - **Late blight of potato**: - This disease is caused by *Phytophthora infestans*, which is a water mold (oomycete) and not a bacterium. Thus, it is not caused by bacteria. - **Potato spindle tuber disease**: - This disease is caused by a viroid, which is a type of infectious agent similar to viruses but lacks a protein coat. Since viroids are not bacteria, this disease is also not caused by bacteria. 3. **Conclusion**: - After analyzing all the options, the only disease caused by bacteria is **Citrus canker**. ### Final Answer: The disease caused by bacteria in plants is **Citrus canker**. ---
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