Caulobacter - stalked bacteria
Enrichment of Caulobacter in a glass jar with a microscope slide.
Caulobacter can easily be enriched by placing a clean microscope slide in nutrient-poor (oligotrophic) freshwater. The bacteria will attach to the glass, form stalks (also termed prosthecae) and can be observed microscopically directly on the slide. As the stalks are very thin a phase-contrast microscope is recommended.
