Figure 7
From: TonB-dependent transporters and their occurrence in cyanobacteria
Expression of all5036 encoding the only TonB in Anabaena sp. PCC 7120. Anabaena sp. PCC 7120 were grown as for experiments shown in Figure 6 in BG11 (lane 1-4) or BG110 (lane 5-8) with and without a source of ferric ammonium citrate and/or copper and reverse transcription (RT) polymerase chain reaction was performed in the absence (-RT) or presence of reverse transcriptase on isolated RNA using primers for rnpB and all5036 (listed in Table 3) to visualize expression.