We found that RNA purification method needed to be improved in ordrer to perform RT-PCR successfully .
We improved following things;
1. Total leaf volume was increased.
2. Samples ware freezed with liquid nitrogen and suspended in ISOGEN more rapidly.
3. We centrifuged samples and collected supernatant twice after adding ISOGEN.
After the improvement, 260nm peak became higher and the degradation is minimized(Fig.4-4A.)
Then we used better quality of RNA for reverse transcription and retried RT-PCR. Fig.4-4C shows the result of this RT-PCR.
After we purified RT-PCR via the new method, we performed RT-PCR again for SEP3 and FUL. The result is shown in fig. We were able to get sufficiently purified RNA, and amplify each gene.
To confirm the exact differnece between experimental group(FT+) and negative control(FT-), we conducted qPCR and compared the relative RNA expression of each gene. However, there was not significant difference between experimental group and negative control.
Checking FT protein purification by Western Blotting
We could not confirm FT function though enough quality of RNA was extracted. Therefore, we questioned about FT protein quality, and performed western blotting to confirm FT protein is successfully purified.
Unfortunately, the band of FT was not detected. Because of the time shortage, we could not conduct further experiment. We have to reconsider about FT purification and now we are trying