What is the relationship between Azolla and Anabaena?

What is the relationship between Azolla and Anabaena? Azolla and the blue-green alga Anabaena azollae maintain a symbiotic relationship: the alga provides nitrogen to the fern, and the fern provides a habitat for the alga. This property of nitrogen fixation has made Azolla extremely important economically in the cultivation of rice, particularly in Asia. Which … Continue reading What is the relationship between Azolla and Anabaena?