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Northern analysis of typical genes in each cluster in Fig. 2. The psbD and rbsLS transcripts were accumulated in a light-dependent manner or in cell cycle-dependent manner, respectively. Cells were collected at indicated time points during synchronous cultivation as same as Fig. 1. The preparation of the probes of psbD, rbcL, and rnpB genes was described in Section 2. A methylene blue-stained membrane was shown in the bottom panel to show the amount of rRNAs.
