84150E

84150E
Caption: Anabaena spp. - Gram-negative, oxygenic, photosynthetic, filamentous cyanobacterium (prokaryote). Note the larger cells in the filament called heterocysts which are involved in nitrogen fixing.
Magnification*: x660
Type: SEM
Copyright 1993 Dennis Kunkel Microscopy, Inc.
Keywords: 84150E,Anabaena,aquatic,blue-green bacteria,cyanobacteria,cyanobacterium,filament,filamentous,Gram-negative,heterocyst,oxygenic,photosynthetic,phytoplankton,plankton,prokaryote,nitrogen fixation,nitrogen fixing,fresh water,SEM