Short communication: Changes in soil enzyme activities following additions of cyanobacterial biomass and exopolysaccharide
The aim of this research was to establish changes in the overall activity of extracellular enzymes: β-glucosidase, phosphomonoesterase, arylsulphatase, protease and urease and the intracellular enzyme dehydrogenase produced by the addition of Tolypothrix tenuis and Microchaete tenera (Cyanobacteria)...
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| Autores principales: | , , , |
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| Formato: | JOUR |
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_00380717_v32_n13_p1985_DeCaire |
| Aporte de: |
| Sumario: | The aim of this research was to establish changes in the overall activity of extracellular enzymes: β-glucosidase, phosphomonoesterase, arylsulphatase, protease and urease and the intracellular enzyme dehydrogenase produced by the addition of Tolypothrix tenuis and Microchaete tenera (Cyanobacteria) exopolysaccharide (EPS) and biomass to a silty clay loam soil. Both biomass and EPS of M. tenera significantly (p < 0.05) increased β-glucosidase activity by 0.1 and 29.3%, respectively. Both cyanobacteria species significantly (p < 0.05) increased urease activity by 15 ± 1%. Cyanobacterial biomass and EPS from T. tenuis and M. tenera produced significant increases in protease (76-90%, 101-136%), phosphomonoesterase (19-27%, 13-22%), arylsulphatase (148-167%, 406-174%) and dehydrogenase activity (16-32%, 43-30%). © 2000 Elsevier Science Ltd. |
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