Figure 3From: New structural and functional defects in polyphosphate deficient bacteria: A cellular and proteomic studyPolyP-deficient cells become filamentous during stationary phase of growth. Pseudomonas sp. B4 polyP-deficient and control cells were grown in LB medium and observed by using phase contrast-optical microscopy (A) and transmission electron microscopy of unstained cells (B). Magnified view of polyP-deficient cells (C). Arrows indicate the septum.Back to article page