title: [Characteristics of 23 species of weed in northeast of China hyperaccumulating PAHs in contaminated soils].
abstract: Pot experiments were conducted to investigate the 23 species of weed accumulation characteristics of phenanthrene, as a representative of polycyclic aromatic hydrocarbons (PAHs), from soil in the northeast of China. The result indicated that among the 23 species, the bioconcentration factors of Taraxacum ohwianum K., Potentilla aiscolor B. and Chelidonium majus L. were all higher than 1, which were 1.01, 4.98, 38.24 respectively. The phenanthrene concentrations in roots were 2.83, 16.34 and 9.66 mg/kg which were lower than those in aboveground part with phenanthrene concentrations were 15.18, 74.70 and 573.62 mg/kg, respectively. The hyperaccumulators were indicated by strong conveyance of phenanthrene from root to aboveground part. The analysis of phenanthrene concentration in aboveground weed and aboveground plant biomass showed that the accumulation of phenanthrene in plant were not correlated with their biomass. It concluded that Taraxacum ohwianum K., Potentilla aiscolor B. and Chelidonium majus L. had hyperaccumulative characteristics of phenanthrene, and it is possible to screen out plants with high biomass and hyperaccumulation capability.
authors.affiliation: School of Forestry, Northeast Forestry University, Harbin 150040, China.
authors.forename: Min
authors.initials: M
authors.lastname: Zhang
authors.forename: Hong
authors.initials: H
authors.lastname: Liang
authors.forename: Da-Wen
authors.initials: DW
authors.lastname: Gao
authors.forename: Bai-Hui
authors.initials: BH
authors.lastname: Zhang
authors.forename: Xin-Ping
authors.initials: XP
authors.lastname: Li
authors.forename: Xiao-Hu
authors.initials: XH
authors.lastname: Guo
mesh_terms: D028281:Chelidonium / Q000378:metabolism*; D002681:China; D010616:Phenanthrenes / Q000032:analysis / Q000378:metabolism; D057685:Plant Weeds / Q000378:metabolism; D006109:Poaceae / Q000145:classification / Q000378:metabolism; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis / Q000378:metabolism*; D031987:Potentilla / Q000378:metabolism*; D012989:Soil Pollutants / Q000378:metabolism*; D031205:Taraxacum / Q000378:metabolism*
chemical_list: D010616:Phenanthrenes; D011084:Polycyclic Aromatic Hydrocarbons; D012989:Soil Pollutants; C031181:phenanthrene