Marek's disease (MD) is pathology of chickens characterized by paralysis, immumosuppression, and the rapid induction of T-cell lymphomas. MD is caused by an oncogenic alphaherpesvirus, Marek's Disease Virus (MDV). Currently, MD is controlled through vaccination with non-oncogeni…
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We discovered and characterized a temperate, transducing bacteriophage phage (Ba1) for the avian respiratory pathogen Bordetella avium. With regard to host range, Ba1 grew on six of nine clinical isolates of B. avium but failed to grow on any tested strains of B. bronchiseptica,…
Mycoplasma gallisepticum is one of several infectious agents contributing to chronic respiratory disease (CRD) in chickens and infectious sinusitis in turkeys. It is highly contagious in industry flocks spreading via airborne dust, droplets or feathers. Infection causes lowered …
The genus Striga is composed of about 50 species, all obligate parasites of tropical cereals and legumes. The genetic structure of S. asiatica of Benin and S. gesnerioides (SG) were analyzed using AFLP. In the former, the mean within population genetic distances ranged from 0.02…
Collections of Puccinia triticina with virulence to durum wheat from Argentina, Chile, Ethiopia, France, Mexico, Spain, and the USA, and a group of representative races of P. triticina from bread wheat from the USA, were tested for virulence phenotypes on 35 Thatcher differentia…
Background: Nontypeable Haemophilus influenzae (NTHi) colonize the human pharynx asymptomatically, and are an important cause of pediatric otitis media (OM). Previous research has identified genes more prevalent among OM-associated NTHi strains than among commensal strains, sugg…
Mayetiola destructor Say, the Hessian fly, is a gall midge and a member of the Dipteran family Cecidomyiidae. It is a common pest of wheat found throughout all of the major wheat growing areas of the world and poses a serious economic threat to the United States (US), particular…
Salmonella enterica serovar Typhimurium (S. Typhimurium) es una bacteria Gram negativo y un patógeno gastrointestinal de importancia mundial, ya que es uno de los principales agentes causantes de intoxicación alimentaria y de enfermedades invasivas no tifoideas, principalmente e…
The objectives of this research were to determine the virulence, genetic stability and immunogenicity of a specific Mycoplasma gallisepticum laboratory strain. Virulence of the strain was determined by evaluation of clinical symptoms before and after ten sequential passes in bot…
The pathogen Fusarium oxysporum was originally isolated from diseased Cannabis sativa plants in the Chu River Valley Djambul region, Kazakhstan. This fungus, which causes severe wilting, eventually resulting in plant death, was identified as Fusarium oxysporum f. sp. cannabis. A…
Tan spot is an important foliar disease of wheat caused by the fungus Pyrenophora tritici-repentis, some isolates of which produce the host-specific, chlorosis-inducing toxin Ptr ToxB. The chlorosis symptoms produced by various isolates of P. tritici-repentis were compared, and …