Kékalgákban

Kékalgákban refers to a phenomenon observed in certain algae, particularly those belonging to the Cyanophyceae division, also known as blue-green algae or cyanobacteria. This term points to the presence of specific pigments within these microorganisms that give them a bluish hue. These pigments are primarily phycocyanin, a protein-based accessory pigment that absorbs light in the orange and red regions of the spectrum and fluoresces red. While chlorophyll is the primary photosynthetic pigment responsible for green coloration in most plants and algae, phycocyanin plays a crucial role in light harvesting for cyanobacteria, allowing them to thrive in environments where other photosynthetic organisms might struggle. The intensity and specific shades of blue-green can vary depending on the concentration of phycocyanin and other pigments present, such as chlorophyll a and carotenoids. These blue-green algae are ubiquitous in aquatic environments, found in oceans, freshwater bodies, and even terrestrial soils. Their unique pigmentation is a key characteristic that aids in their identification and understanding of their ecological roles, including their contribution to primary productivity in various ecosystems.