Glomalins and their relationship with soil carbon

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The activity of bacteria and fungi is a relevant issue in the process of humification of organic matter and physical stability of the soil, standing out the role of arbuscular mycorrhizal fungi (AMF). AMF synthesize a recalcitrant glycoprotein called glomalin, with hydrophobic characteristics. GSRP...

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Detalles Bibliográficos
Otros Autores: Ferrero Holtz, Esteban Waldemar, González, Mirta Graciela, Giuffré, Lidia L., Ciarlo, Esteban Ariel
Formato: Artículo
Lenguaje:Inglés
Materias:
GLOMALIN
GSRP
ARGENTINE SOILS
TOTAL ORGANIC CARBON
Acceso en línea:http://ri.agro.uba.ar/files/download/articulo/2017ferreroholtzestebanwaldemar.pdf
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Aporte de:Registro referencial: Solicitar el recurso aquí
Biblioteca Central (FAUBA) de Universidad de Buenos Aires
Descripción
Sumario:The activity of bacteria and fungi is a relevant issue in the process of humification of organic matter and physical stability of the soil, standing out the role of arbuscular mycorrhizal fungi (AMF). AMF synthesize a recalcitrant glycoprotein called glomalin, with hydrophobic characteristics. GSRP (glomalin soil-related protein) is the generic product of proteins extracted from soil. The aim was to quantify GSRP and evaluate its share in the total soil organic carbon (TOC). GSRP presented a direct and positive association with soil TOC (R²:0.73). The quantitative participation of GSRP regarding TOC (GSRP / TOC) revealed that as TOC content decreases, GSRP proportion increases. Within the TOC range explored in this paper (1.3 to 3.2%), the glomalin related protein pool of soil changes about 9%, representing between 27% and 36% of TOC. This behavior would indicate an increase of resistant carbon forms counteracting the effects of carbon loss.
ISSN:2221-1004

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