Scholthof H B
Department of Plant Pathology and Microbiology, Texas A&M University, College Station, Texas 77843, USA.
J Virol. 1999 Sep;73(9):7823-9. doi: 10.1128/JVI.73.9.7823-7829.1999.
Tomato bushy stunt virus (TBSV) cDNA, positioned between a modified cauliflower mosaic virus 35S promoter and the hepatitis delta virus antigenomic ribozyme with a downstream nopaline synthase gene polyadenylation signal, established infections upon rub-inoculation of plants with intact plasmids. Application of this methodology produced a TBSV DNA-based gene vector which yielded readily detectable levels of localized foreign gene expression in inoculated leaves. This is the first demonstration of an infectious DNA from a member of the Tombusviridae which permits rapid TBSV-mediated foreign-gene expression upon direct rub-inoculation of miniprep DNA onto a variety of plant species.
番茄丛矮病毒(TBSV)的互补DNA(cDNA)位于修饰的花椰菜花叶病毒35S启动子与丁型肝炎病毒反基因组核酶之间,并带有下游胭脂碱合酶基因的聚腺苷酸化信号,通过用完整质粒摩擦接种植物可建立感染。应用这种方法产生了一种基于TBSV DNA的基因载体,该载体在接种叶片中产生了易于检测到的局部外源基因表达水平。这是番茄病毒科成员的感染性DNA的首次证明,该DNA允许在将小量制备的DNA直接摩擦接种到多种植物物种上后,通过TBSV快速介导外源基因表达。