英文摘要 |
"A previously unreported virus disease that caused severe leaf curl mosaic and fruit mosaic on nipplefruit (Solanum mammosum) was found in 1993 at Pingtung, Taiwan. Flexuous rod-shaped particles with a normal length of 830-860 nm were observed in leaf-dip extracts and partially purified preparations of infected leaves. Pinwheel-shaped and laminated inclusion bodies typical of potyvirus infection were found in leaf of infected nipplefruit plant. The virus was readily transmitted by mechanical inoculation with partially purified preparations of infected plants and could be pseudo-grafted with an infection rate of 60%, but might not be transmitted by peach aphid and cotton aphid in a nonpersistent or persistent manner. It had a very narrow host range restricted to Solanum mammosum among 31 tested plant species belonging to 7 families. No seed transmission could be evidenced. In the Ouchterlony test the virus showed very faint reaction with antisera to two potyvirus, Pepper veinal mottle virus and Potato Y virus. No reactions were observed with antisera to Papaya ringspot virus, Turnip mosaic virus and Zucchini yellow mosaic virus. Based on the characteristic shown above we concluded that leaf curl mosaic of nipplefruit found in southern Taiwan may be caused by a new potyvirus and the tentative name nipplefruit leaf curl mosaic virus is proposed." |