gojo
06-22-2008, 06:11 PM
Hey all,
AM excretes glomalin :up:
Glomalin extraction info (http://invam.caf.wvu.edu/methods/mycorrhizae/glomalin.htm)
http://www.ars.usda.gov/is/AR/archive/sep02/soil0902.htm
A sticky protein seems to be the unsung hero of soil carbon storage.
Until its discovery in 1996 by ARS soil scientist Sara F. Wright, this soil "super glue" was mistaken for an unidentifiable constituent of soil organic matter. Rather, it permeates organic matter, binding it to silt, sand, and clay particles. Not only does glomalin contain 30 to 40 percent carbon, but it also forms clumps of soil granules called aggregates. These add structure to soil and keep other stored soil carbon from escaping.
As a glycoprotein, glomalin stores carbon in both its protein and carbohydrate (glucose or sugar) subunits. Wright, who is with the Sustainable Agricultural Systems Laboratory in Beltsville, Maryland, thinks the glomalin molecule is a clump of small glycoproteins with iron and other ions attached. She found that glomalin contains from 1 to 9 percent tightly bound iron
AM excretes glomalin :up:
Glomalin extraction info (http://invam.caf.wvu.edu/methods/mycorrhizae/glomalin.htm)
http://www.ars.usda.gov/is/AR/archive/sep02/soil0902.htm
A sticky protein seems to be the unsung hero of soil carbon storage.
Until its discovery in 1996 by ARS soil scientist Sara F. Wright, this soil "super glue" was mistaken for an unidentifiable constituent of soil organic matter. Rather, it permeates organic matter, binding it to silt, sand, and clay particles. Not only does glomalin contain 30 to 40 percent carbon, but it also forms clumps of soil granules called aggregates. These add structure to soil and keep other stored soil carbon from escaping.
As a glycoprotein, glomalin stores carbon in both its protein and carbohydrate (glucose or sugar) subunits. Wright, who is with the Sustainable Agricultural Systems Laboratory in Beltsville, Maryland, thinks the glomalin molecule is a clump of small glycoproteins with iron and other ions attached. She found that glomalin contains from 1 to 9 percent tightly bound iron