Question:
Which one of the following oomycetes causes 'Sudden Oak Death'?
Which one of the following oomycetes causes 'Sudden Oak Death'?
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Sudden Oak Death:
- Caused by Phytophthora ramorum.
- Affects oaks and other woody plants.
- Spreads through spores in water and soil.
- Caused by Phytophthora ramorum.
- Affects oaks and other woody plants.
- Spreads through spores in water and soil.
Updated On: Aug 27, 2026
- Phytophthora capsici
- Pythium ultimum
- Phytophthora ramorum
- Plasmodia viticola
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Verified By Collegedunia
The Correct Option is C
Solution and Explanation
Step 1: Understanding the Question:
This question tests knowledge of oomycete pathogens and the diseases they cause.
Step 2: Detailed Explanation:
Phytophthora ramorum (C) causes 'Sudden Oak Death'.
It is an oomycete pathogen that infects oaks and other woody plants.
It was first discovered in the United States and has caused significant damage to oak forests.
Other oomycetes:
- Phytophthora capsici (A): Causes blight in pepper, tomato, and other vegetables.
- Pythium ultimum (B): Causes damping-off disease.
- Plasmodia viticola (D): Causes downy mildew of grapevine.
Thus, Phytophthora ramorum causes Sudden Oak Death.
Step 3: Final Answer:
Thus, Phytophthora ramorum causes 'Sudden Oak Death', which corresponds to option (C).
[0.5cm]
This question tests knowledge of oomycete pathogens and the diseases they cause.
Step 2: Detailed Explanation:
Phytophthora ramorum (C) causes 'Sudden Oak Death'.
It is an oomycete pathogen that infects oaks and other woody plants.
It was first discovered in the United States and has caused significant damage to oak forests.
Other oomycetes:
- Phytophthora capsici (A): Causes blight in pepper, tomato, and other vegetables.
- Pythium ultimum (B): Causes damping-off disease.
- Plasmodia viticola (D): Causes downy mildew of grapevine.
Thus, Phytophthora ramorum causes Sudden Oak Death.
Step 3: Final Answer:
Thus, Phytophthora ramorum causes 'Sudden Oak Death', which corresponds to option (C).
[0.5cm]
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