cyanobacteria
Học thuậtThân thiện
Cyanobacteria form a greenish-blue film on the surface of the still pond water.
Definition
- Noun:
- A type of photosynthetic bacteria: Cyanobacteria are predominantly photosynthetic prokaryotic organisms. They contain a blue pigment (phycocyanin) in addition to chlorophyll, which gives them their characteristic color.
- Ecological role and form: They occur singly or in colonies in diverse habitats (e.g., water, soil, rocks) and are important as phytoplankton, forming a base of many aquatic food webs.
Usage Examples
- Noun:
- The pond turned green due to a bloom of cyanobacteria.
- Scientists study ancient cyanobacteria to understand early life on Earth.
- Some species of cyanobacteria can fix atmospheric nitrogen.
Advanced Usage
- "Cyanobacterial bloom": A rapid increase in the population of cyanobacteria in an aquatic system, often visible as scum and sometimes producing toxins.
- Authorities issued a warning after detecting a harmful cyanobacterial bloom in the lake.
Variants and Related Words
- Cyanobacterium (n): The singular form of cyanobacteria.
- A single cyanobacterium is a prokaryotic cell.
- Cyanobacterial (adj): Relating to or characteristic of cyanobacteria.
- Researchers analyzed the cyanobacterial mats.
Synonyms
- Blue-green algae: A common, informal name for cyanobacteria, though they are technically bacteria, not algae.
Related Terms and Concepts
- Photosynthesis: The process by which cyanobacteria convert light energy into chemical energy.
- Phytoplankton: Microscopic aquatic organisms, including cyanobacteria, that drift with currents and perform photosynthesis.
- Prokaryote: An organism whose cells lack a nucleus, such as cyanobacteria.
Cyanobacteria form a greenish-blue film on the surface of the still pond water.
Noun
- predominantly photosynthetic prokaryotic organisms containing a blue pigment in addition to chlorophyll; occur singly or in colonies in diverse habitats; important as phytoplankton