期刊
EUROPEAN JOURNAL OF PLANT PATHOLOGY
卷 115, 期 4, 页码 369-375出版社
SPRINGER
DOI: 10.1007/s10658-006-9021-8
关键词
begomovirus; tobacco leaf curl Yunnan virus; infectivity
We demonstrated that only 2 out of 15 isolates of Tobacco leaf curl Yunnan virus (TbLCYNV) were associated with the satellite DNA beta molecules. To investigate the infectivity of this virus, an infectious clone of TbLCYNV isolate Y143 (TbLCYNV-Y143) was agroinoculated or whitefly transmitted into Nicotiana benthamiana, N. glutinasa, Petunia hybrida and N. tabacum. TbLCYNV-Y143 alone was able to induce severe upward leaf curling, vein thickening or stunt symptoms in these plants. Co-inoculation of TbLCYNV-Y143 with DNA beta molecules associated with other begomoviruses induced similar symptom types on these plants. This indicates that TbLCYNV is a monopartite begomovirus. The relevance of results that only two isolates of TbLCYNV were associated with DNA beta molecules is discussed.
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