The Achromobacter are a genus of bacteria
Bacteria are a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bacteria have a wide range of shapes, ranging from spheres to rods and spirals...

, included in the order Burkholderiales
The Burkholderiales are an order of Proteobacteria. Like all Proteobacteria, they are gram-negative. They include several pathogenic bacteria, including species of Burkholderia and Bordetella. They also include Oxalobacter and related genera, which are unusual in using oxalic acid as their source...

. The cells are straight rods and are motile by using 1 – 20 peritrichous flagella
A flagellum is a tail-like projection that protrudes from the cell body of certain prokaryotic and eukaryotic cells, and plays the dual role of locomotion and sense organ, being sensitive to chemicals and temperatures outside the cell. There are some notable differences between prokaryotic and...

. They are strictly aerobic and are found in water (freshwater and marine) and soils.
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