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Fusarium wilt is a common vascular wilt fungal disease, exhibiting symptoms similar to Verticillium wilt. This disease has been investigated extensively since the early years of this century. The pathogen that causes Fusarium wilt is Fusarium oxysporum (F. oxysporum). [1] The species is further divided into formae speciales based on host plant.
Fusarium oxysporum f.sp. lycopersici is a fungal plant pathogen. It is a big pathogen to the tomato plant. It has a violet to white color on most media but does not produce a pigment on King's B medium. It has been spread to tomato seeds by the hands of contaminated workers. The seeds of infected plants may be infected as well.
Tomato mosaic Tomato mosaic virus Tomato mottle Tomato mottle geminivirus: Tomato necrosis Alfalfa mosaic virus: Tomato spotted wilt Tomato spotted wilt virus: Tomato yellow leaf curl Tomato yellow leaf curl virus: Tomato yellow top Tomato yellow top virus: Tomato bunchy top: Potato spindle tuber viroid [5] Tomato planto macho Tomato planto ...
These diverse and adaptable fungi have been found in soils ranging from the Sonoran Desert, to tropical and temperate forest, grasslands and soils of the tundra. [10] F. oxysporum strains are ubiquitous soil inhabitants that have the ability to exist as saprophytes, and degrade lignin [11] [12] and complex carbohydrates [13] [14] [1] associated with soil debris.
A wilt disease is any number of diseases that affect the vascular system of plants. Attacks by fungi , bacteria , and nematodes can cause rapid killing of plants, large tree branches or even entire trees.
Verticillium wilt is a wilt disease affecting over 350 species of eudicot plants. It is caused by six species of Verticillium fungi : V. dahliae , V. albo-atrum , V. longisporum , V. nubilum , V. theobromae and V. tricorpus . [ 1 ]
Fusarium oxysporum is a common soil inhabitant and produces three types of asexual spores: macroconidia, microconidia and chlamydospores. [1]The macroconidia are straight to slightly curved, slender and thin-walled, usually with three or four septa, a foot-shaped basal cell and a tapered and curved apical cell.
Bacterial wilt caused by R. solanacearum is of economic importance because it infects over 250 plant species in over 50 families. As of 2007, this pathogen has affected over 450 host species representing 54 plant families due to its broad host range around the world. [29] The disease is known as southern wilt, bacterial wilt, and brown rot of ...