Early blight of potato is caused by:
Correct answer: A. Alternaria_solani
- A. Alternaria_solani
- B. Phytophthora_infestans
- C. Erysiphe_graminls
- D. Claviceps_purpurea
Explanation
Alternaria solani is the correct answer as it is the fungal pathogen responsible for early blight of potato, causing specific symptoms on potato plants. The other options, such as Phytophthora infestans, Erysiphe graminis, and Claviceps purpurea, are pathogens that affect different plants and do not cause early blight in potatoes.
This question appeared on the ETEA MDCAT 2009 paper, which you can sit online with every answer explained.
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Fungi are mainly multicellular, non-photosynthetic organisms with chitinous cell walls that obtain nutrients by extracellular digestion and absorption. Coverage includes hyphae, mycelium, spores, yeast, moulds, mushrooms, decomposer and parasitic roles, and the differences between fungi, plants and bacteria.
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