Recent Advances in Exploration and Biotechnological Production of Bioactive Compounds in Three Cyanobacterial Genera: , and .

, are only Gram-negative bacteria with the capacity of oxygenic photosynthesis, so termed as "Cyanophyta" or "blue-green algae." Their habitat is ubiquitous, which includes the diverse environments, such as soil, water, rock and other organisms (symbiosis, commensalism, or parasitism, etc.,).