Thesis (Ph.D)-University of Birmingham, School of Biological Sciences.
|Statement||by Maria de Fatima Batista.|
Barley yellow mosaic virus is one of two agents (the other is barley mild mosaic virus) that causes yellow mosaic disease of barley. The disease is soil-borne because the viruses are transmitted by the plasmodiophorid fungus Polymyxa graminiswhich has resting spores that survive in soil. The viruses occur, either separately or together, in. Physicochemical and physical properties. Barley stripe mosaic virus (BSMV) virions occur as heterodisperse sedimenting species with an S 20,w of about –S; other species have an S 20,w of about –S, depending on the virus. The BSMV isoelectric point is pH Anionic detergents, added to purification buffers, increase virus yield by preventing particle aggregation. In an attempt to breed winter barley that is resistant to barley mild mosaic virus, agricultural researchers cross a susceptible domesticated strain with a resistant wild strain. The F1 plants are all susceptible, but when the F1 plants are crossed with each other, some of the F2 individuals are resistant. Rothamsted RepositoryAuthor: N. Shi, M. J. Adams, J. F. Antoniw, J. Chen, S. A. Macfarlane, T. M. A. Wilson.
Barley Yellow Mosaic Virus disease caused by different strains of BaYMV and BaMMV is a major threat to winter barley cultivation in Europe. Pyramiding of resistance genes may be considered as a promising strategy to avoid the selection of new virus strains and to create more durable by: Barley Yellow Mosaic Virus (BaYMV) caused significant reduction in barley yield and is difficult to control due to alive parasitic soil-borne fungus, Palmyra gamines that transmits the, virus. The effects of infection by barley yellow mosaic virus on the yield and components of yield of barley. Plant Pathology. 35 (3), pp. The effects of sowing date and other factors on growth, yield and nitrogen uptake, and on the incidence of pests and diseases, of winter barley at Rothamsted from to Author: N. Carter, R. T. Plumb. Nebraska in as “yellow mosaic.” The disease, caused by wheat streak mosaic virus, has the potential to cause serious crop losses in winter wheat. Spring wheat, oats and barley also can be affected. Wheat streak mosaic virus is most prevalent in the File Size: 4MB.
Barley stripe mosaic virus (BSMV) is a single-stranded RNA virus with three genome components designated alpha, beta, and gamma. BSMV vectors have previously been shown to be efficient virus induced gene silencing (VIGS) vehicles in barley and wheat and have provided important information about host genes functioning during pathogenesis as well as various aspects of genes functioning in. Recently, the presence of Barley mild mosaic virus (BaMMV) and the weakly serological detection of Barley yellow mosaic virus (BaYMV) were reported in Spain (1); both viruses are members of the genus Bymovirus (family Potyviridae).Random and symptomatic surveys were conducted during February and March of in barley fields in northeastern Spain to determine the occurrence of BaMMV and BaYMV. Barley yellow dwarf virus has been proven to be a the test host was negative. cosmopolitan pathogen (3, 19) existing in several strains Recent problems with corn viruses in the United States that vary in insect vector specificity (2, 8, 16, 17, 18, 26, have caused many investigators, particularly those taking. Barley mild mosaic virus is one of two agents (the other is barley yellow mosaic virus) responsible for yellow mosaic disease of barley. Both viruses are transmitted in soil by the plasmodiophorid fungus Polymyxa graminis. The viruses occur, either separately or together, in autumn-sown barley and cause similar symptoms.