Azotobacter Cysts

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Kingdom: Eubacterium
Scientific Name: Azotobacter
Image Courtesy of: Pankratz, Stu
Image Width: 2 microns
Image Technology: TEM


This is the cross section of a cyst of the bacterium, Azotobacter. Azotobacter is an organism that lives in soil. It can fix nitrogen. Unlike rhizobium, azotobacter is free-living. This cyst is a resting stage for this organism that allows it to survive in harsh conditions. This cyst has the same function as endospores in other bacteria.