Pseudomonas is a genus of Gram-negative, aerobic bacteria that are commonly found in soil, water, and plants. They are known for their metabolic diversity and adaptability to different environments. Pseudomonas species are important in bioremediation, as they can degrade a wide range of organic compounds. They also have medical significance, as some species can cause infections in humans, particularly in immunocompromised individuals. Overall, research on Pseudomonas focuses on understanding their physiology, ecology, and potential applications in biotechnology and medicine.