The Plant Pathology Journal

The Korean Society of Plant Pathology (한국식물병리학회)
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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)
  • Published : 2003.08.01
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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.

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References

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