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http://dx.doi.org/10.5423/PPJ.2003.19.4.217

Movement of Zucchini yellow mosaic vims Involved in Symptom Severity on Zucchini Squash  

Park, Seung-Kook (Department of Biochemistry and Biophysics, Texas A&M University)
Yoon, Ju-Yeon (Plant Virus GenBank, PVGABC, Division of Environmental and Life Sciences, Seoul Women's University)
Park, Sun-Hee (Plant Virus GenBank, PVGABC, Division of Environmental and Life Sciences, Seoul Women's University)
Ryu, Ki-Hyun (Plant Virus GenBank, PVGABC, Division of Environmental and Life Sciences, Seoul Women's University)
Publication Information
The Plant Pathology Journal / v.19, no.4, 2003 , pp. 217-220 More about this Journal
Abstract
Zucchini squash (Cucurbita pepo cv. Black Beauty) plants infected with A strain of Zucchini yellow mosaic virus (ZYMV-A) isolated from a hollyhock plant showed systemically severe mosaic symptom, similar to previously established Cu strain of ZYMV. However, initial symptom of squash infected by ZYMV-A strain was generally more severe than those infected by ZYMV-Cu. Using leaf-detachment assay, examination of kinetics of accumulation of the coat protein (CP) in systemic loaves of squash plants showed that CPs of ZYMV-A appeared earlier than those of ZYMV-Cu. However, both ZYMV-A and ZYMV-Cu showed similar kinetics of CP accumulation 7 days post-inoculation. These results indicate that different rates and initial severity of systemic symptom development were due to differences in the rate of movement rather than vims replication.
Keywords
Movement; Potyvirus; severity; squash; symptom; Zucchini yellow mosaic virus;
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