Question

Given below are two statements:
Statement I: Xanthomonas causes disease on fibre plant parts.
Statement II: Xanthomonas can cause vascular wilt in rice.
In light of the above statements, choose the most appropriate answer from the options given below:

• A. Both Statement I and Statement II are true
• B. Both Statement I and Statement II are false
• C. Statement I is correct but Statement II is false
• D. Statement I is incorrect but Statement II is true

Hint:

Xanthomonas:
- Causes diseases on cotton (bacterial blight).
- Causes bacterial leaf blight of rice (not vascular wilt).
- Does not cause vascular wilt.

Answer 1

The Correct Option is C

Step 1: Understanding the Question:
This question tests knowledge of diseases caused by Xanthomonas.

Step 2: Detailed Explanation:
Statement I:
Xanthomonas causes diseases on fibre plant parts.
Examples:
- Xanthomonas campestris pv. malvacearum causes bacterial blight of cotton (affects fibre).
- Xanthomonas citri causes citrus canker (affects leaves and fruits).
This statement is true.
Statement II:
Xanthomonas does not cause vascular wilt in rice.
Bacterial wilt of rice is caused by Burkholderia glumae (causing panicle blight) or Ralstonia solanacearum (not specific to rice).
Xanthomonas oryzae pv. oryzae causes bacterial leaf blight (not vascular wilt).
This statement is false.

Step 3: Final Answer:
Thus, Statement I is correct but Statement II is false, which corresponds to option (C).
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