Chemical behavior and ecological effects of pollutants acting on root-soil interface

Abstract

Abstract: Root-soil interface is the main entrance of pollutants intruding into plant tissues and the special micro-ecosphere that can result in a series of ecological safety problems. In this review, the concept of root-soil interface is presented and it is suggested that root-soil interface behavior and effects of chemical pollutants should be grouped into two aspects as rhizosphere chemical behavior and ecological effects and root chemical behavior and ecological effects.These two aspects are theoretically discussed according to the latest research advances.Rhizosphere chemical behavior and ecological effects included rhizosphere pHenvironment and adsorptive behavior, rhizosphere oxidation-reduction behavior, rhizosphere chemical toxicology effects, rhizosphere microbiological effects,and rhizosphere bioenzymatic reaction etc.,and root chemical behavior and ecological effects included root exudation, influence of enzymatic systems in roots, disturbance of normal physiological processes, change of cellular structure and function,and interference of structure and function of biological macromolecules.Particular attention should be paid to the significance as well as some problems of research on chemical behavior and ecological effects of pollutants acting root-soil interface in pollution ecology.

Key words: Root-soil interface, Rhizosphere, Root, Pollutant, Chemical behavior, Ecological effect

CLC Number:

X171.5

WANG Meie, ZHOU Qixing, ZHANG Lihua . Chemical behavior and ecological effects of pollutants acting on root-soil interface[J]. Chinese Journal of Applied Ecology, 2003, (11): 2067-2071.

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