Ralstonia is a genus of bacteria that are primarily found in soil and water. These bacteria are known for their ability to survive in various environments and can be important in bioremediation, which is the process of using microorganisms to clean up contaminated environments. Some species of Ralstonia, such as Ralstonia solanacearum, are plant pathogens that cause diseases in crops like potatoes and tomatoes. This can lead to significant agricultural losses, making the study of these bacteria important for managing plant health and ensuring food security.