Research in Plant Disease 2004;10(4):231-240.
Published online December 31, 2004.
시설 및 노지재배 고추의 바이러스병 발생과 분포
이수헌*, 이재봉, 김상목, 최홍수, 박진우, 이준성, 이기운1, 문제선2
농업과학기술원 식물병리과, 1경북대학교 농생물학과, 2한국생명공학연구원 세포기능조절연구실
The Incidence and Distribution of Viral Diseases in Pepper by Cultivation Types
Su-Heon Lee*, Jae-Bong Lee, Sang-Mok Kim, Hong-Soo Choi, Jin-Woo Park, Jun-Seong Lee, Key-Woon Lee1, Jae-Sun Moon2
Plant Pathology Division, National Institute of Agricultural Science and Technology, Suwon 441-707, Korea
1Department of Agricultural Biology, Kyungpook National University, Daegu 702-701, Korea
2Lab. of Cellular Function Modulator, Korea Research Institute of Bioscience & Biotechnology, Daejeon 305-333, Korea
Correspondence:  Su-Heon Lee,Phone)+82-31-290-0436, Fax)+82-31-290-0406, E-mail)
Received: November 18, 2004
In the year of 2002 annual nationwide survey of virus diseases occurring in the pepper fields and greenhouses in Korea, the distribution and the incidence of viral diseases was investigated. The pepper samples from both greenhouses (155 samples) and open fields (227 samples) were collected and further analyzed to detect eleven different viruses by RT-PCR. The results indicate that no sample collected from both greenhouse and open field seems to be infected by TMV, RMV, PVY, AMV, and TSWV. On the other hand, CMV, BBWV2, PepMoV, PMMoV, TMGMV and ToMV are readily identified from greenhouse and open field samples by RT-PCR. The infection rates of the collected samples between greenhouse and open field are largely different. Comparing with 10% of virus-infected pepper samples grown in greenhouse, approximately one third of pepper samples collected from open field are infected. The mixed-infection rates in the virus-infected greenhouse and open field samples are 16% and 61%, respectively. The dominant virus occuring in greenhouse is PMMoV, indicating that virus-infected seed stocks and infected plant debris in the growing area may be important sources of inocula. On the other hand, both CMV and BBWV2 are dominant viruses in open field. This may indicate that the migration of viruliferous insect vectors into pepper fields may be the most important source of inoculum. Also, the survey shows that BBWV2 is newly immerging virus to be controlled in Korea. The discrepancies on the distribution and the occurrence of viral diseases between field and greenhouse may provide a fact that the accumulation and distribution of inoculum by successive cultivation and the migration of viruliferous vectors into growing areas are likely to be important factors to determine the incidence of viral diseases. Therefore, the further studies on epidemiology and the consideration of new breeding program of pepper are essential to minimize virus diseases.
Key Words: Pepper, RT-PCR, Virus, Cultivation type

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