Triticum mosaic virus (TriMV) is a newly discovered virus isolated from wheat (Triticum aestivum). This study was conducted to determine an experimental host range for TriMV and identify species that could serve as differential hosts for isolating TriMV from Wheat streak mosaic virus (WSMV). Plants tested were mechanically inoculated with the 06-123 isolate of TriMV or the Sidney 81 isolate of WSMV. Some plants were analyzed by enzyme-linked immunosorbent assay (ELISA) using antibodies of TriMV and WSMV. Plants infected with TriMV always produced mosaic symptoms and only extracts of symptomatic plants reacted with antibodies of TriMV. Maize is not a host for TriMV but barley, oat, rye, and triticale are hosts of TriMV. Certain barley and triticale accessions are hosts for TriMV but not WSMV. These plants can be used in combination with maize to separate WSMV and TriMV in plants infected by both viruses. We also showed that 8 wild grass species were susceptible to TriMV and 25 were not. All of the grasses susceptible to infection with TriMV have been reported as susceptible to infection with WSMV. Because of their growth habits, these plant species would be less desirable for use as differential hosts than maize, barley, and triticale.
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http://dx.doi.org/10.1094/PDIS-94-9-1125 | DOI Listing |
Plant Dis
January 2025
Colorado State University System, Soil and Crop Sciences, Fort Collins, Colorado, United States;
Wheat is an important cereal crop globally and in the United States, and is the largest crop grown by acreage in Colorado. In June 2023, we observed wheat fields displaying severe yellowing and virus-like disease symptoms in plants across seven eastern Colorado counties (Yuma, Prowers, Kit Carson, Washington, Sedgewick, Morgan, and Weld). Symptomatic plants were prominent in fields and appeared bright yellow, with ringspots, mosaic patterning, and streaking on leaves.
View Article and Find Full Text PDFVirology
December 2024
Department of Entomology, University of Nebraska-Lincoln, Lincoln, NE, 68583, USA.
Triticum mosaic virus (TriMV; Poacevirus tritici) is the founding member of the genus Poacevirus within the family Potyviridae. TriMV is one of the components of the wheat streak mosaic disease (WSMD) complex, an economically significant wheat disease in the Great Plains region of the USA. TriMV contains a single-stranded positive-sense RNA genome of 10,266 nts with an unusually long 5'-nontranslated region of 739 nts.
View Article and Find Full Text PDFMol Plant Microbe Interact
November 2024
USDA-ARS, Plant Pathology, 137 Keim Hall, University of Nebraska-Lincoln, Lincoln, Nebraska, United States, 68583;
Synergistic interactions among unrelated viruses in mixed infections can cause significant yield losses, and viral determinants of these interactions are poorly understood. Wheat ( L.) co-infection with wheat curl mite-transmitted wheat streak mosaic virus (WSMV) and Triticum mosaic virus (TriMV) results in disease synergism with a drastically increased symptom phenotype of stunted growth, leaf bleaching, and enhanced titers of both viruses.
View Article and Find Full Text PDFPlants (Basel)
September 2024
Genomics Research Group, Department of Plant Pathology, Institute of Plant Protection, Hungarian University of Agriculture and Life Sciences, Szent-Györgyi Albert Street 4, H-2100 Godollo, Hungary.
In 2019, random samples of growing as a weed were surveyed to uncover their virus infections at two locations in Hungary. This pilot study revealed infection with three viruses, two appearing for the first time in the country. As follow-up research, in the summer of 2021, we collected symptomatic leaves of several monocotyledonous plants in the same locations and determined their viromes using small RNA high-throughput sequencing (HTS).
View Article and Find Full Text PDFPlant Dis
June 2024
University of Nebraska-Lincoln, Entomology, Lincoln, Nebraska, United States;
Triticum mosaic virus (TriMV, genus , family ) was first reported in 2006 (Seifers et al. 2008) to infect wheat, and since then, it has been established as a constraint for US wheat production (Byamukama et al. 2013).
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