👉 Macromerus is a type of bacterium that belongs to the class of Gram-negative bacteria, commonly known as E.coli or Campylobacter. It is characterized by its high surface area and large size, allowing it to grow in media with high concentrations of nutrients, such as agarose gel, which facilitates its growth. Macromerus can be found in various environments, including soil, water, and food production systems.