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. 2015 Jul 27;112(32):E4458–E4464. doi: 10.1073/pnas.1512232112

Fig. 1.

Fig. 1.

The septum between two vegetative cells of WT Anabaena and three fragmentation mutants. (A) Electron tomographic image of the WT septum. (B) Septum shown in A is rotated 90° around the y axis showing the channel distribution within the septum. Several channels are observed in the middle of the septum (white holes). (C) Electron tomographic image of the septum of CSVT1 mutant (∆fraC). The septum contains fewer channels compared with WT. (D) Septum shown in C is rotated 90° around the y axis. (E) Electron tomographic image of the septum of CSVT2 mutant (∆fraD). The septum contains similar number of channels compared with WT. (F) Septum shown in E is rotated 90° around the y axis. (G) Electron tomographic image of the septum of CSVT22 mutant (∆fraC/D). (H) Septum shown in G is rotated 90° around the y axis showing the channel distribution. Arrowheads indicate the channels observed on their corresponding panel before rotation. “t” indicates thylakoids. All images are composed of 10 superimposed 2.2-nm serial tomographic slices. (Scale bar: 50 nm.)