TY - JOUR

T1 - Gold uptake by perennial ryegrass

T2 - The influence of humates on the cycling of gold in soils

AU - Jones, K. C.

AU - Peterson, P. J.

PY - 1989/1/1

Y1 - 1989/1/1

N2 - An experiment in which perennial ryegrass (Lolium perenne L.) was grown in solution cultures containing various forms of radioactive gold ( 198 Au) is described. Uptake of labelled Au from solutions containing either Au chloride or various Au-humic acid (HA) complexes is compared. In each case concentrations of Au in the plant roots were several fold higher than in the plant shoots. However, the Au concentration in roots from some of the Au-HA preparations was only about 5% of that from the Au-HA solutions. High voltage electrophoresis studies indicate the presence of several Au-HA complexes in the solution cultures. The relevance of these findings to the cycling of Au within soils is discussed.

AB - An experiment in which perennial ryegrass (Lolium perenne L.) was grown in solution cultures containing various forms of radioactive gold ( 198 Au) is described. Uptake of labelled Au from solutions containing either Au chloride or various Au-humic acid (HA) complexes is compared. In each case concentrations of Au in the plant roots were several fold higher than in the plant shoots. However, the Au concentration in roots from some of the Au-HA preparations was only about 5% of that from the Au-HA solutions. High voltage electrophoresis studies indicate the presence of several Au-HA complexes in the solution cultures. The relevance of these findings to the cycling of Au within soils is discussed.

KW - cycling in soils

KW - gold

KW - humates

KW - humic acid

KW - plant uptake

U2 - 10.1007/BF00000894

DO - 10.1007/BF00000894

M3 - Journal article

AN - SCOPUS:0024912308

VL - 7

SP - 3

EP - 10

JO - Biogeochemistry

JF - Biogeochemistry

SN - 0168-2563

IS - 1

ER -