2]-fixation is mediated only by prokaryotic photoautotrophs including cyanobacteria and photosynthetic bacteria.
2008) Diazotrophic cyanobacteria as the major photoautotrophs during mid-Cretaceous Oceanic Anoxic Events: nitrogen and carbon isotopic evidence from sedimentary porphyrin.
2008) Reconstruction of the biogeochemistry and ecology of photoautotrophs based on the nitrogen and carbon isotopic compositions of vanadyl porphyrins from Miocene siliceous sediments.
Besides, due to it photoautotrophs
characteristics cyanobacteria also known as blue-green algae and green pigments which result from photosynthesis.
piscesae metabolite flux, and support previous suppositions that hydrothermal vent vestimentiferan tubeworms are tremendous primary producers, comparable in body growth and mass specific rates to productive photoautotrophs
(Lutz et al.
All these factors seriously limit photosynthesis by photoautotrophs
, mainly microscopic planktonic algae and cyanobacteria.
Each microcosm was supplied with inorganic and organic nutrients, photoautotrophs
, and decomposers.