Record ID No. |
6229 |
Author(s) |
Holtz E. W. F.*, Gonzales M. G., Giuffré L. and Ciarlo Esteban. , 2016 |
Affiliation |
Universidad de Buenos Aires Facultad de Agronomía Departamento de Recursos Naturales y Ambiente Cátedra de Edafología.Av. San Martín 4453. 1417 Buenos Aires. Argentina. |
Title |
Glomalins and their relationship with soil carbon. |
Source. Vol.(no):Page |
International Journal of Applied Science and Technology. 6(2). |
Categories |
Arbuscular Mycorrhiza |
Subjects |
Biochemistry |
Host |
NA |
Organism |
NA |
Country |
Argentina |
Abstracts |
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. |