Molecular Membrane Biology Laboratory, RIKEN Advanced Science Institute, Wako, Japan.
Plant Signal Behav. 2011 Dec;6(12):1914-7. doi: 10.4161/psb.6.12.18061.
"Bulb" is a mobile and complex structure appearing in vacuolar membrane of plant cell. We recently reported new fluorescent marker lines for bulbs and bulb-less mutants. We tried multicolor visualization of vacuolar membrane to show distinct segregation of bulb-positive protein (γTIP or AtVAM3) and bulb-negative protein (AtRab75). Unexpectedly, GFP-AtRab75 resulted to localize in bulb under the condition of co-expression with TagRFP-AtVAM3. The signal intensities of GFP-AtRab75 and TagRFP-AtVAM3 were quantified and compared. The result indicates that TagRFP-AtVAM3 is concentrated in bulb than GFP-AtRab75.
"Bulb" 是一种出现在植物细胞液泡膜上的移动且复杂的结构。我们最近报道了用于灯泡和无灯泡突变体的新型荧光标记线。我们试图对液泡膜进行多色可视化,以显示灯泡阳性蛋白 (γTIP 或 AtVAM3) 和灯泡阴性蛋白 (AtRab75) 的明显分离。出乎意料的是,在与 TagRFP-AtVAM3 共表达的情况下,GFP-AtRab75 定位于灯泡中。对 GFP-AtRab75 和 TagRFP-AtVAM3 的信号强度进行了量化和比较。结果表明,TagRFP-AtVAM3 比 GFP-AtRab75 更集中在灯泡中。