To begin the pharmacological analysis of dual-colored F1 Arabidopsis thaliana, dissect and remove the cotyledons of seven-day old transgenic seedlings. Add 500 microliters of a 30-micromolar Brefeldin A, or BFA solution, in a 1.5-milliliter micro-centrifuge tube. Immerse the dissected seedlings in it.
Tightly attach a 10-milliliter syringe to the micro-centrifuge tube and apply a vacuum for one minute. Remove the syringe before incubating the sample in the solution for 30 minutes before imaging. Next, immerse the dissected seven-day old seedling into 25-millimolar wortmannin.
Apply the vacuum for one minute before incubating the immersed sample for 30 minutes. Examining ERL-1 trafficking routes in transgenic plants showed that 30 minutes of exposure to Brefeldin A solution resulted in ERL-1-YFP detection in large compartments known as BFA bodies. It indicated that Brefeldin A could block ERL-1 trafficking suggesting recycling or endocytosis of ERL-1.
When transgenics were treated with wortmannin for 30 minutes, ring-like structures called WM bodies were highlighted by ERL-1-YFP. It showed that ERL-1-YFP were transported to multivesicular bodies indicating that ERL-1 followed the route to vacuoles for degradation.
