Fusarium

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Fusarium

[fyü′za·rē·əm]
(mycology)
A genus of fungi in the family Tuberculariaceae having sickle-shaped, multicelled conidia; includes many important plant pathogens.

Fusarium

 

a genus of fungi of the class Fungi Imperfecti. It includes nine sections, 26 species, and 29 races. The fungi reproduce asexually by means of conidia, which vary in form, size, structure, and method of formation. The oval or ovate microconidia are one-or two-celled and form both on conidiophores and directly on the short ramuli of the mycelium. The macroconidia, which are four-to seven-celled, are falciform or fusiform-falciform. They form on branched conidiophores that are frequently gathered into distinctive pulvini—bright orange, violet, or pink sporodochia. Fusaria are also capable of forming chlamydospores during a period of intensive mycelial growth. Several species bear their spores in perithecia.

Most species are saprophytes that live in the soil on plant residues. There are many parasitic species that cause harmful plant diseases called fusarium wilts. Some species secrete toxic substances that are harmful to plants. The use of rye, wheat, barley, oats, and other plants contaminated by fusarial toxins leads to the development of alimentary-toxic aleukia in humans and fusariotoxicosis in animals. When proliferating, the mycelium of Fusarium aguaeductum, which is waterborne, can clog water pipes.

M. A. LITVINOV

References in periodicals archive ?
Each PDA plate was divided equally into two portions where a 5 mm Fusarium sp F2 (the most virulent isolate based on disease severity score from experiment 2.
The following experiments were conducted: Control without microbes, Fusarium sp F2 only, B.
The twenty-two (22) Trichoderma isolates varied in their ability to reduce radial growth of Fusarium sp F2 four days post-inoculation.
The combination treatment between the six Trichoderma isolates and Fusarium sp F2 showed high levels of reduction in pre and post emergence damping off in seedlings (Fig.
7% respectively) compared with soil infested with Fusarium sp F2 only (18%) (Fig.
Here we report the analysis on the ability of our soil isolates to act as biological control agents against Fusarium sp.
Aliette, Benlate and Carbendazim were used @ 100 ppm, complete inhibition of colony growth of Fusarium solani was observed in vitro conditions.
2012) evaluated various isolates of Pseudomonas and Bacillus against Fusarium wilt and found that Pseudomonas spp.
2011) found that wilt of chickpea incited by Fusarium oxysporum f.
Sources of resistance to Fusarium wilt of chickpea in Sudan.
Evaluation of Trichoderma species against Fusarium oxysporum f.
Fusarium wilt and other important diseases of chickpea in the Mediterriananean area.