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. 2015 Feb 6;10(2):e0117823. doi: 10.1371/journal.pone.0117823

Fig 7. Scanning electron micrographs of E. coli strains.

Fig 7

(A) Wild-type strains; (B) yhdE-knockout (KO) strain; (C) KO strain harboring pGEX-6P-1-yhdE; (D) KO strain harboring pGEX-6P-1-yhdE_E33A. Cells were prepared for scanning electron microscopy as described in the Methods. Compared with the wild-type cells, the KO cells were more spherical, shorter in length. When YhdE expressed in KO strain, the cell length recovered to normal level as wild-type strain. Mutant YhdE_E33A without PPase activity cannot complement the shape and length of cell. Scale bars represent 1 μm.