Helminthosporium oryzae causes leaf spot disease of rice commonly called sesame or brown leaf spot of rice. It caused Bengal famine of 1942-43 and similar conditions in Krishna-Godavari area in 1989-1990. The perfect stage of the fungus is Cochilobolus miyabeanus. The conidia are 5-10 septate.
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Concepts Used:
Human Health and Disease
Health is described as a state of complete physical, mental and social well-being.
The disease is a circumstance where malfunctioning of the body organs occurs leading to uneasiness and discomfort.
Differences between Infectious Diseases and Non-Infectious Diseases: