Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - The influence of humic and fulvic acids on silver uptake by perennial ryegrass, and its relevance to the cycling of silver in soils
AU - Jones, K. C.
AU - Peterson, P. J.
PY - 1986/2/1
Y1 - 1986/2/1
N2 - An experiment in which perennial ryegrass (Lolium perenne L.) was grown in solution cultures containing various forms of radiosilver (110mAg) is ptake of labelled Ag from solutions containing either AgNO3, Ag2SO4, AgCH3COO, Ag-humic acid (HA) or Ag-fulvic acid (FA) complexes is compared. In each case concentrations of Ag in the plant roots was several fold higher than in the plant shoots. However the Ag concentration in roots from the Ag-HA preparations was only about 5% of that from the AgNO3 solutions; from Ag-FA it was 18%. Transport index values were highest for plants grown in the Ag-HA solution, indicating greater mobility of Ag within these plants. Preliminary data for a selective extraction procedure performed on Ag-HA preparations suggest sorption onto various active sites. The relevance of these findings to the cycling of Ag within soils is discussed.
AB - An experiment in which perennial ryegrass (Lolium perenne L.) was grown in solution cultures containing various forms of radiosilver (110mAg) is ptake of labelled Ag from solutions containing either AgNO3, Ag2SO4, AgCH3COO, Ag-humic acid (HA) or Ag-fulvic acid (FA) complexes is compared. In each case concentrations of Ag in the plant roots was several fold higher than in the plant shoots. However the Ag concentration in roots from the Ag-HA preparations was only about 5% of that from the AgNO3 solutions; from Ag-FA it was 18%. Transport index values were highest for plants grown in the Ag-HA solution, indicating greater mobility of Ag within these plants. Preliminary data for a selective extraction procedure performed on Ag-HA preparations suggest sorption onto various active sites. The relevance of these findings to the cycling of Ag within soils is discussed.
KW - Fulvic acids
KW - Humic acids
KW - Lolium perenne L.
KW - Silver
U2 - 10.1007/BF02378846
DO - 10.1007/BF02378846
M3 - Journal article
AN - SCOPUS:0002192311
VL - 95
SP - 3
EP - 8
JO - Plant and Soil
JF - Plant and Soil
SN - 0032-079X
IS - 1
ER -