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Rice blast is the most important disease concerning rice crops in the world. Since rice is an important food source for much of the world, its effects have a broad range. It has been found in over 85 countries across the world and reached the United States in 1996. Every year the amount of crops lost to rice blast could feed 60 million people.
The rice false smut pathogen, Ustilaginoidea virens, invades through a small gap at the apex of a rice spikelet before heading. [7] The primary source of infection is the presence of chlamydospores in the soil. [8] During the vegetative stage of the growth of the rice crop, the fungus colonizes the tissue on the growing points on the tillers. [8]
Epicoccum sorghinum (former Phoma sorghina) is an ascomycete fungus with known plant pathogenicity to sugarcane and rice, causing ring spot disease and leaf spot disease.This fungus is primarily known for its production of tenuazonic acid, which leads to complications with growth and causes the symptoms of leaf spot disease.
Bacterial diseases; Bacterial blight Xanthomonas oryzae pv. oryzae = X. campestris pv. oryzae [2] Bacterial leaf streak Xanthomonas oryzae pv. oryzicola: Foot rot Dickeya dadantii/Erwinia chrysanthemi: Grain rot Burkholderia glumae: Pecky rice (kernel spotting) Damage by bacteria (see also under fungal and miscellaneous diseases) Sheath brown rot
Cochliobolus miyabeanus is an important plant pathogen because it causes a common and widespread rice disease that causes high level of crop yield losses. It was a major cause of the Bengal famine of 1943, where the crop yield was dropped by 40% to 90% and the death of 2 million people was recorded. [3]
Gibberella fujikuroi is a fungal plant pathogen. It causes bakanae disease in rice seedlings. Rice infected with bakanae disease. Another name is foolish seedling disease. It gets that name because the seeds can be infected, leading to disparate outcomes for the plant. There are not many diseases that initiate similar symptoms as bakanae.
Certain strains of Rhizopus microsporus use agricultural rice as a host, causing the disease Rice Seedling Blight. This infection is first observed by the fast swelling of seedling roots, but displays no further signs of infection. The main causal agent of Rice Seedling Blight is attributed to the endosymbiotic relationship with Paraburkholderia sp
This article is a list of diseases of cultivated wild rice (Zizania palustris). Fungal Brown Spot is the only significant commercial disease of cultivated wild rice ...