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Binding and Electrostatic Attraction of Trace Elements to Plant Root Surfaces
Year:
2005
Authors :
Yermiyahu, Uri
;
.
Volume :
Co-Authors:
Yermiyahu, U., Agricultural Research Organization, Gilat Research Center, D.N. Negev 285280, Israel
Kinraide, T.B., Appalachian Farming Systems Research Center, Agricultural Research Service, United States Department of Agriculture, Beaver West, VA 25813-9423, United States
Facilitators :
From page:
365
To page:
389
(
Total pages:
25
)
Abstract:
An important feature of the biogeochemistry of trace elements in the rhizosphere is the interaction between plant root surfaces and the ions in the soil solution. These ions may accumulate in the aqueous phases of cell surfaces external to the plasma membranes (PMs). In addition, ions may bind to the cell wall (CW) components or to the PM surface with variable strength. The chapter describes the distribution of ions among the extracellular phases using electrostatic models (i.e., Gouy-Chapman-Stem and Donnan-plus-binding models) for which parameters are now available. Many plant responses to ions correlate well with computed PM-surface activities, but only poorly with activities in the soil solution. These responses include ion uptake, ion-induced intoxication, and the alleviation of intoxication by other ions. The chapter illustrates the technique for the quantitative resolution of multiple ion effects by inserting cell-surface activities into nonlinear equations. © 2005 Elsevier B.V. All rights reserved.
Note:
Related Files :
Binding
Biochemistry
rhizosphere
roots
soil
trace elements
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Related Content
More details
DOI :
10.1016/B978-044451997-9/50014-3
Article number:
Affiliations:
Database:
Scopus
Publication Type:
Book chapter
;
.
Language:
English
Editors' remarks:
ID:
29080
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:44
Scientific Publication
Binding and Electrostatic Attraction of Trace Elements to Plant Root Surfaces
Yermiyahu, U., Agricultural Research Organization, Gilat Research Center, D.N. Negev 285280, Israel
Kinraide, T.B., Appalachian Farming Systems Research Center, Agricultural Research Service, United States Department of Agriculture, Beaver West, VA 25813-9423, United States
Binding and Electrostatic Attraction of Trace Elements to Plant Root Surfaces
An important feature of the biogeochemistry of trace elements in the rhizosphere is the interaction between plant root surfaces and the ions in the soil solution. These ions may accumulate in the aqueous phases of cell surfaces external to the plasma membranes (PMs). In addition, ions may bind to the cell wall (CW) components or to the PM surface with variable strength. The chapter describes the distribution of ions among the extracellular phases using electrostatic models (i.e., Gouy-Chapman-Stem and Donnan-plus-binding models) for which parameters are now available. Many plant responses to ions correlate well with computed PM-surface activities, but only poorly with activities in the soil solution. These responses include ion uptake, ion-induced intoxication, and the alleviation of intoxication by other ions. The chapter illustrates the technique for the quantitative resolution of multiple ion effects by inserting cell-surface activities into nonlinear equations. © 2005 Elsevier B.V. All rights reserved.
Scientific Publication
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