Fig. 2

Flagellar apparatus and motility in Mf. australis strain IT-1. Flagellar apparatus and motility in Mf. australis strain IT-1. a Scanning electron microscopy of a cell with two flagella bundles; (b) Dark-field image recorded trajectory of a cell showing an “helical” path recorded for 1s; (c) Sequential series of light microscopy DIC images of a swimming (left to right, top to bottom) cell imaged with a high-speed camera. Each frame represents 1/1000s. The morphology of the cell is similar to a “faba” bean with a convex (left) and a concave (right) side; several granules can be seen in the cell body. d Organization of genes involved in flagellar apparatus biosynthesis in Mf. australis IT-1. Fourteen copies of fliC genes occur elsewhere in the genome. HP (light blue) are hypothetical proteins