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Plant Diseases
Concepts tested here
- Bacterial diseases of crops
All Questions
2008 AIPMT 1 question
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Bacterial leaf blight of rice is caused by a species of:Bacterial leaf blight of rice is caused by the bacterium Xanthomonas oryzae (pathovar oryzae).
The disease appears as yellow to white streaks along the leaf margins, which dry up and give the plant a blighted look.
Other diseases caused by species of Xanthomonas are citrus canker and black rot of crucifers.
Alternaria is a fungus that causes diseases such as early blight of potato.
Erwinia causes soft rot and fire blight, and Pseudomonas causes other bacterial wilts and leaf spots.
So bacterial leaf blight of rice is caused by a species of Xanthomonas.