Dinoroseobacter shibae DFL 12 = DSM 16493

Dinoroseobacter shibae DFL 12 (also designated DSM 16493) is a Gram-negative, rod-shaped bacterium that thrives in freshwater environments. This species is characterized by its phototrophic metabolism, utilizing light as an energy source, which distinguishes it from many other freshwater microbes that may rely on different energy sources. D. shibae exhibits optimal growth at a temperature of 33.0 °C, suggesting a preference for moderately warm aquatic habitats. As an aerobic organism, D. shibae requires oxygen for its metabolic processes, which supports its survival in well-oxygenated freshwater ecosystems. This characteristic may influence its distribution and interactions within its habitat, as it competes for resources with other microbial inhabitants that may possess different metabolic strategies. The ecological role of D. shibae may include contributions to the cycling of organic matter and the production of oxygen in freshwater systems, thereby supporting the broader ecosystem functionality. Its phototrophic capabilities indicate a potential involvement in primary productivity, which is crucial for sustaining aquatic food webs. Furthermore, understanding the traits of D. shibae can provide insights into the adaptability and ecological significance of phototrophic bacteria in changing freshwater environments.