Anabaena is a genus of cyanobacteria or blue-green algae. It belongs to the kingdom Monera. They have the nitrogen-fixing capability.
Characteristics of kingdom monera
- Unicellular entities with a cellular composition of a prokaryote
- Metabolically diverse using several substrates as carbon and energy sources, play a role in carbon and nitrogen cycles
- Their cell wall is rigid, made of peptidoglycan
- They are environmental decomposers and mineralizers exhibiting different modes of nutrition.