What type of bacteria is identified as twisted, rod-shaped?

The type of bacteria that is identified as twisted and rod-shaped is known as spirilla. Spirilla are characterized by their spiral or corkscrew shape, which distinguishes them from other bacterial forms. Unlike cocci, which are spherical, and bacilli, which are straight rod-shaped, spirilla exhibit a more complex morphology that allows them to move in a twisting motion. This unique shape is often associated with certain types of bacteria that can be found in various environments, including aquatic ecosystems. Vibrio, while also rod-shaped, typically has a curved or comma shape rather than being twisted like spirilla. Understanding these distinctions is crucial for microbiology and its applications, such as in health and sanitation practices.