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Abstract:

Exopolysaccharide (EPS) and biomass from strains Tolypothrix tenuis and Microchaete tenera were added to the soil and the activity of β-glucosidase, urease, protease, phosphomonosterase, arylsulphatase, and dehydrogenase were determined. Both treatments induced a promotion of microorganisms growth, indicated by a constant increase of dehydrogenase activity. Protease and dehydrogenase activity increased with time up to day 400. β-gluosidase, urease, and phosphomonoesterase activity changed from a maximal increase at day 90 to lower values at day 400. Aryl-sulphatase activity decreased with T. tenuis and increased with M. tenera biomasses, after 400 days. Changes of activity were higher when EPS from both strains were added to soil compared with the effect of the corresponding biomasses. In order to establish whether EPS effect on soil affects plant growth, maize seedlings were grown in soils treated with EPS. The treatments increased dry weight (72-47% for shoots and 47-81% for roots), respectively, nitrogen (N) (428 and 464% for T. tenuis and M. tenera) and phosphorus (P) (200% for both strains) content.

Registro:

Documento: Artículo
Título:Effect of Tolypothrix tenuis and Microchaete tenera on biochemical soil properties and maize growth
Autor:Storni de Cano, M.M.; Zulpa de Caire, G.; Zaccaro de Mulé, M.C.; Palma, R.M.
Filiación:Depto. de Ciencias Biológicas, Facultad de Cie. Exact. y Naturales, Universidad de Buenos Aires (UBA), Intendente Guiraldes 2620 (1428), Buenos Aires, Argentina
Palabras clave:Cyanobacteria; Enzyme; Exopolysaccharide; Maize; Microchaete tenera; Tolypothrix tenuis
Año:2002
Volumen:25
Número:11
Página de inicio:2421
Página de fin:2431
DOI: http://dx.doi.org/10.1081/PLN-120014704
Título revista:Journal of Plant Nutrition
Título revista abreviado:J. Plant Nutr.
ISSN:01904167
CODEN:JPNUD
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01904167_v25_n11_p2421_StornideCano

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Citas:

---------- APA ----------
Storni de Cano, M.M., Zulpa de Caire, G., Zaccaro de Mulé, M.C. & Palma, R.M. (2002) . Effect of Tolypothrix tenuis and Microchaete tenera on biochemical soil properties and maize growth. Journal of Plant Nutrition, 25(11), 2421-2431.
http://dx.doi.org/10.1081/PLN-120014704
---------- CHICAGO ----------
Storni de Cano, M.M., Zulpa de Caire, G., Zaccaro de Mulé, M.C., Palma, R.M. "Effect of Tolypothrix tenuis and Microchaete tenera on biochemical soil properties and maize growth" . Journal of Plant Nutrition 25, no. 11 (2002) : 2421-2431.
http://dx.doi.org/10.1081/PLN-120014704
---------- MLA ----------
Storni de Cano, M.M., Zulpa de Caire, G., Zaccaro de Mulé, M.C., Palma, R.M. "Effect of Tolypothrix tenuis and Microchaete tenera on biochemical soil properties and maize growth" . Journal of Plant Nutrition, vol. 25, no. 11, 2002, pp. 2421-2431.
http://dx.doi.org/10.1081/PLN-120014704
---------- VANCOUVER ----------
Storni de Cano, M.M., Zulpa de Caire, G., Zaccaro de Mulé, M.C., Palma, R.M. Effect of Tolypothrix tenuis and Microchaete tenera on biochemical soil properties and maize growth. J. Plant Nutr. 2002;25(11):2421-2431.
http://dx.doi.org/10.1081/PLN-120014704