SINCLAIR STAMMERS / Light photomicrograph of Blue green algae / Cyanobacteria (Nostoc sp) capable of nitrogen fixation, and used for soil enrichment especially with rice cultivation. The long filaments are composed of in...

Chien Lee / Mountain Tree Shrew (Tupaia montana) feeding on Pitcher Plant (Nepenthes rajah) nectar, inevitably leaving its scat in the pitcher which is a valuable nitrogen source in their impoverished mountain ha...

Chien Lee / Low's Pitcher Plant (Nepenthes lowii) derives nitrogen nutrients from droppings of Mountain Tree Shrew (Tupaia montana) which are attracted to the nectar secretions, inevitably leaving their scat in t...

Chien Lee / Low's Pitcher Plant (Nepenthes lowii) derives nitrogen nutrients from droppings of Mountain Tree Shrew (Tupaia montana) which are attracted to the nectar secretions, inevitably leaving their scat in t...

Adrian Davies / Nitrogen fixing nodules on roots of leguminous plant, caused by Bacterium {Rhizobium sp} UK