[Chemical behavior and ecological effects of pollutants acting on root-soil interface].
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 pH environment 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 Laboratory of Terrestrial Ecological Process, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China. wmeie@hotmail.com
Meie
M
Wang
Qixing
Q
Zhou
Lihua
L
Zhang
D000327:Adsorption; D004463:Ecology; D006863:Hydrogen-Ion Concentration; D010084:Oxidation-Reduction; D018517:Plant Roots / Q000187:drug effects* / Q000378:metabolism / Q000382:microbiology; D012988:Soil Microbiology; D012989:Soil Pollutants / Q000633:toxicity*
D012989:Soil Pollutants