Cable bacteria

Cable bacteria in sediment

Cable bacteria

Cable bacteria under a microscope

Cable bacteria are a type of bacteria that form long chains of cells resembling electrical cables. These bacteria were first discovered in marine sediments in 2010. They are unique in their ability to conduct electricity over long distances, which is a rare trait among microorganisms.

Discovery

Cable bacteria were first discovered by a team of researchers led by Professor Lars Peter Nielsen at Aarhus University in Denmark. The discovery was made in marine sediments in Aarhus Bay, Denmark. The researchers observed long, multicellular chains of bacteria that exhibited electrical conductivity.

Characteristics

Cable bacteria are filamentous bacteria that can grow up to several centimeters in length. They consist of individual cells connected end-to-end, forming a continuous chain. These bacteria are capable of conducting electricity through their cells, allowing them to transfer electrons over long distances.

Ecological Role

Cable bacteria play a significant role in biogeochemical cycling in marine sediments. They are involved in processes such as sulfur cycling, nitrogen cycling, and carbon cycling. By transferring electrons from deeper sediment layers to the surface, cable bacteria facilitate the decomposition of organic matter and the cycling of nutrients.

Applications

The unique electrical conductivity of cable bacteria has attracted interest for potential applications in biotechnology and environmental remediation. Researchers are exploring ways to harness the electron transfer capabilities of these bacteria for use in microbial fuel cells and other technologies.

See also

• Bacteria
• Microorganisms
• Biogeochemistry