What are some of the plant-bacterial associations that fix atmospheric nitrogen?
Associations between bacteria and plants that fix atmospheric nitrogen include an association between species of Frankia bacteria and several tree species such as those of the genera Casuarina and Allocasuarina. Another example is between that of Azospirillum and grasses. The most well-known plant-bacterial associations that fix atmospheric nitrogen is the symbiotic association between rhizobia and legumes.
