Some of these nitrogen-fixing bacteria live independently in soils, but others have co-evolved with a select few taxa of higher plants, mostly in the legume family, to form symbioses that support ...
Azotobacter is one of the soil organisms capable of fixing nitrogren. Nitrogen fixers are important in the nitrogen cycle and help convert atmospheric nitrogen into an organic form that is then usable ...
The Rhizobial nitrogen fixing symbionts (fluorescently-labeled in orange and green using genetic probes) residing inside diatoms collected from the tropical North Atlantic. The nucleus of the ...