Figure 1: Culture vessels and tools for anaerobic cultivation. (a) The vessels culturing anoxygenic phototrophic bacteria; (b) Caps used for anaerobic cultivation. Butyl rubber septa (front right), teflon-coated butyl rubber septa (front left), and aluminum caps (back); (c) Hand crimper for crimping aluminum caps on vials, and (d) decapper for removing aluminum caps from the vials.