Figure 1. (a)Bacteria is screened from rusty iron sample and cultured with Winogradsky culture medium. With rust and biofilm, bacterial colony is bronzing and circular. (b)Gram Straing：Gram-negative bacteria. (c)Iron bacteria with its biofilm (d)Electron microscope picture of iron bacteria with rust and biofilm complex.Figure 2. The iron bacteria belongs to Pseudomonas sp. According to the identification results of 16s rDNAFigure 3: Iron bacteria growth curve.Bacteria is cultured in Winogradsky culture medium at 30℃ and shake at 220rpm, 2% inoculum of culture solution (culturing age 3 days) and measure the light absorption at 600 nm.
