bioreactors based on fresh water are at high risk of contamination by bacteria from the air. The salt content of seawater inhibits the growth of airborne bacteria that may enter the purple ...

Purple bacteria are anoxygenic phototrophs widely spread in nature, but especially in aquatic environments, where there are anoxic conditions that favor the synthesis of their pigments. Purple ...

But experts insist that the ocean's hue is far from stable - as it is wholly dependent on water chemistry and ... sulphur levels - meaning more purple sulphur bacteria and therefore turning ...

Unlike plants and cyanobacteria, photosynthetic bacteria, such as purple sulfur bacteria, thrive in extreme environments with high salt concentrations and alkalinity. These bacteria use hydrogen ...