title: Accumulation and tolerance characteristics of zinc in Agropyron cristatum plants exposed to zinc-contaminated soil.
abstract: In phytoremediation, plants are used to stabilize or remove toxins from soil. In this study, a pot experiment was conducted in a greenhouse to evaluate the phytoremediation potential of Agropyron cristatum (Poaceae) grown on Zinc (Zn) contaminated soils. Results indicated that Zn accumulation in both shoots and roots increased with soil Zn concentration, and Zn concentrations in roots were greater than in shoots. A significantly negative correlation was found between translocation factor or bioconcentration factor values and Zn concentrations in soil. Overall, A. cristatum was Zn excluder with an innate capacity to tolerate Zn stress and may have potential for the phytostabilization of sites contaminated with Zn.
authors.affiliation: Beijing Research and Development Center for Grass and Environment, Beijing Academy of Agriculture and Forestry Sciences, No. 9 ShuGuangHuaYuan Middle Road, Haidian District, Beijing, 100097, China. menglin9599@sina.com
authors.forename: Lin
authors.initials: L
authors.lastname: Meng
authors.forename: Qiang
authors.initials: Q
authors.lastname: Guo
authors.forename: Peichun
authors.initials: P
authors.lastname: Mao
authors.forename: Xiaoxia
authors.initials: X
authors.lastname: Tian
mesh_terms: D031702:Agropyron / Q000187:drug effects / Q000254:growth & development* / Q000378:metabolism*; D001673:Biodegradation, Environmental; D002681:China; D004784:Environmental Monitoring; D052918:Environmental Restoration and Remediation / Q000379:methods*; D012989:Soil Pollutants / Q000378:metabolism*; D013054:Spectrophotometry, Atomic; D015032:Zinc / Q000378:metabolism*
chemical_list: D012989:Soil Pollutants; D015032:Zinc