Cyanobacteria 10 Tolypothrix tenuis 8 Calothrix sp. PCC 7101 6 Exopolysaccharide 4 Tolypothrix 4 Algae 2 Bioactive extracellular substances 2 Biofilters 2 Biomass 2 Bioremediation 2 Catalase activity 2 Concentration (process) 2 Cyanobacterium 2 Enzyme 2 Maize 2 Microchaete tenera 2 Nickel 2 Nostoc 2 Nostoc muscorum 2 Plant growth regulators 2 Plant regeneration 2 Porphyrin 2 Rice callus 2 Sheaths 2 Soil stability 2 Stress 2 Tolypothrix tenuis stress 2 Toxicity 2 article 2 carbon 2