Nostoc Cyanobacteria with heterocyst in their filament was observed in the water sample collected from the pond near Trimbakeshwar, Nashik, Maharashtra. Nostoc is the free-living (nonsymbiotic) cyanobacteria capable of transforming atmospheric nitrogen into fixed nitrogen. Particularly efficient nitrogen fixers are found among the filamentous species that have specialized cells called heterocysts. The heterocysts are thick-walled cell inclusions that are impermeable to oxygen; they provide the anaerobic (oxygen-free) environment necessary for the operation of the nitrogen-fixing enzymes.
Sign in to commentNobody has commented yet... Share your thoughts with the author and start the discussion!
More Posts from Praneeta NCMR
CHICKPEA POLLENS
0 Applause0 Comments
6y
Four days hands on Foldscope workshop at NCCS Pune