Authors
H. S.
Choi
,
Department of Plant Pathology, National Institute of Agricultural Science and Technology, Suwon
;
Jeong-Soo
Kim
,
Department of Vegetable Breeding, National Horticultural Research Institute, Suwon
;
Jeong-Uk
Cheon
,
Department of Plant Pathology, National Institute of Agricultural Science and Technology, Suwon
;
Jang- Kyung
Choi
Department of Agricultural Biology, Kangwon National University, Chuncheon, Republic of Korea
; and
S. S.
Pappu
,
Department of Entomology
, and
H. R.
Pappu
,
Department of Plant Pathology, University of Georgia, Coastal Plain Experiment Station, Tifton
Severe mosaic symptoms resembling those reported for a blotch isolate of Peanut stripe virus (PStV) (1) were observed in the year 1998 in Suwon, South Korea, on several peanut cultivars. The incidence of the virus was as high as 100% in cv. Daekwang. The virus was seed transmitted to varying degrees depending on the cultivar and a maximum seed transmission of 15.7% was observed in cv. Aul. Electron microscopic examination of leaf dip preparations showed filamentous rods having modal length of 720 nm. Viral inclusion bodies in infected cells were of pinwheel, scroll, and laminated aggregates. The 3' terminal region of the viral genome was amplified using degenerate primers (2) and the resulting approximately 700 bp fragment was cloned and sequenced. GenBank searches using the 709 nucleotides consisting of the complete 3'-untranslated region and a part of the coat protein gene showed that the virus shared 98% sequence identity with the currently known PStV isolates. To our knowledge, this is the first report of PStV in the Republic of Korea.
References: (1) J. W. Demski et al. Ann. Appl. Biol. 105:495, 1984. (2) S. S. Pappu et al. J. Virol. Methods 41:9, 1993.
