Figure 6.

Analysis of the stability of some mRNAs in the chloroplast. Rifampicin (100 μg/ml) was added at indicated time point and cells were collected before (time 0) and after treatment (2, 5, 10, and 30 min). Signal intensity shown in lower panels was normalized against rRNA. Values are means of three independent experiments ± standard deviation. The preparation of the probes of each gene was described in Section 2. A methylene blue-stained membrane was shown in the bottom panel to show the amount of rRNAs.