| Title | Propagation of Bombyx mori Nucleopolyhedrovirus in Nonpermissive Insect Cell Lines |
|---|---|
| Author | Soo-Dong Woo1*, Jong Yul Roh2, Jae Young Choi2, and Byung Rae Jin3 |
| Address | 1Department of Plant Medicine, College of Agriculture, Life and Environment Sciences, Chungbuk National University, Cheongju 361-763, Republic of Korea, 2School of Agricultural Biotechnology, Seoul National University, Seoul 151-742, Republic of Korea, 3College of Natural Resources and Life Science, Dong-A University, Busan 604-714, Republic of Korea |
| Bibliography | Journal of Microbiology, 45(2),133-138, 2007, |
| DOI | |
| Key Words | Bombyx mori nucleopolyhedrovirus, susceptibility, nonpermissive insect cell, host specificity |
| Abstract | This study addresses the susceptibility of Spodoptera frugiperda (Sf9 and Sf21), Trichoplusia ni (Hi5), and S. exigua (Se301) cells to the Bombyx mori nucleopolyhedrovirus (BmNPV). Although these cells have classically been considered nonpermissive to BmNPV, the cytopathic effect, an increase in viral yield, and viral DNA synthesis by BmNPV were observed in Sf9, Sf21, and Hi5 cells, but not in Se301 cells. Very late gene expression by BmNPV in these cell lines was also detected via β-galactosidase expression under the control of the polyhedrin promoter. Sf9 cells were most susceptible to BmNPV in all respects, followed by Sf21 and Hi5 cells in decreasing order, while the Se301 cells evidenced no distinct viral replication. This particular difference in viral susceptibility in each of the cell lines can be utilized for our understanding of the mechanisms underlying the host specificity of NPVs. |
| Download PDF | 45(2)-07.pdf |