Figure 3From: Constitutive and regulated expression vectors to construct polyphosphate deficient bacteriaPolyP content in recombinant Pseudomonas sp . B4 cells. PolyP removal was checked by quantification of cellular polyP (A) and by Transmission Electron Microscopy (TEM) of unstained cells (B). Arrows indicate the cellular flagellum. Error bars are the average of three determinations in three biological replicates.Back to article page