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Bacterial leaf blight of rice is caused by a species
Options
(a) Alternaria
(b) Erwinia
(c) Xanthomonas
(d) Pseudomonas
Correct Answer:
Xanthomonas
Explanation:
Bacterial leaf blight of rice is caused by Xanthomonas oryzae a bacterium which is gram-negative, aerobic, capsulated, and motile with a single polar flagellum Primary infection is carried through the infected seeds. The entry of the pathogen occurs through wounds and stomata. The symptoms of the disease is the appearance of linear, yellow to straw coloured stripes, usually on both the edges of the leaf. As the disease progresses, the drying and twisting of the leaf tip occurs. The most destructive phase of
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Topics: Diversity In Living World
(339)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Plants can be cultivated in soilless medium where all required nutrients are
- An example of ex situ conservation is
- Just as a person moving from Delhi to Shimla to escape the heat for the duration
- Which one of the following is the correct percentage of the two
- ATP is injected in cyanide poisoning because it is
Topics: Diversity In Living World (339)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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