First Report of Cucumber mosaic virus Infecting Blephilia hirsuta in North America
2010
Blephilia hirsuta (Pursh) Benth. var. hirsuta, an ornamental plant known as hairy pagoda or hairy wood mint (Lamiaceae), is native to eastern North America and is listed as an endangered species or a species of special concern in several northeastern states (http://www.ct.gov/dep/cwp/view.asp?a=2702&q=323482&depNav_GID=1628 and http://www.mass.gov/dfwele/dfw/nhesp/species_info/mesa_list/mesa_list.htm). B. hirsuta, grown as an ornamental on the University of Arkansas campus in Fayetteville, exhibited mottling symptoms indicative of viral infection. Double-stranded RNA extractions (3) yielded four bands of approximately 3.2, 2.9, 2.2, and 0.9 kb, a pattern identical to that of Cucumber mosaic virus (CMV [2]). Nicotiana benthamiana and Chenopodium quinoa seedlings were mechanically inoculated with sap from symptomatic tissue. N. benthamiana inoculated plants were stunted and developed systemic mosaic and C. quinoa inoculated plants developed local lesions, whereas mock inoculated plants remained symptomless....
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