noun
cyanobacterium; blue-green bacterium
Scientific term for photosynthetic bacteria formerly called blue-green algae. Often used in biology and environmental science contexts.
See also: 藍藻
藍色細菌は光合成を行う原核生物です。
Cyanobacteria are prokaryotes that perform photosynthesis.
この湖では藍色細菌が大量発生している。
Cyanobacteria are blooming in this lake.
藍藻 is a broader term often used for cyanobacteria as a group, while 藍色細菌 emphasizes their bacterial nature. 藍藻 can also refer to blue-green algae in a traditional sense.
Compound of 藍色 (indigo blue) + 細菌 (bacterium), reflecting the blue-green color of these organisms.