Abstract
The aim of this study was to assess qualitative and quantitatively phycobilin pigments of two nitrogen-fixing Cyanobacteria with the purpose to optimize in the future, the culture conditions to high scale.
Highlights
Cyanobacteria are organisms capable to fix carbon only as higher plants
Based on the obtained information, we proposed to assess qualitative and quantitatively the content of these pigments in two nitrogenfixers cyanobacteria strains from Atacama Desert
The colonies were replicated in Petri plates with agar Z8 and Z8- N media with the purpose to obtain unialgal inocula that afterwards were cultured in 250 ml Erlenmeyer flasks with liquid Z8-N media
Summary
Cyanobacteria are organisms capable to fix carbon only as higher plants They can fix atmospheric nitrogen, a compound that is transformed in ammonium and in this way it is liberated to the soil, enriching it with this element, which acts as natural biofertilizer. They have phycobilin pigments as: phycocyanin and phycoerythrin. Cyanobacteria are part of numerous ecosystems both freshwater and marine, and of desert soil all over the world On desert ecosystems, these microorganisms are continuously submitted to a strong hydric, thermic and nutritive stress. Their high tolerance to these conditions allows us to support that these organisms could be easy to culture and in this way achieve the commercialization of these molecules
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