| Movement of Zucchini yellow mosaic virus Involved in Symptom Severity on Zucchini Squash |
|
Seung Kook Choi, Ju Yeon Yoon, Sun Hee Choi, Ki Hyun Ryu |
|
|
| 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 leaves 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 postinoculation. These results indicate that different rates and initial severity of systemic symptom development were due to differences in the rate of movement rather than virus replication. |
| Key Words:
Movement, Potyvirus, severity, squash, symptom, Zuchini yellow mosaic virus |
|
PDF Links
Full text via DOI
Download Citation
