title: Transportation and localization of phenanthrene and its interaction with different species of arsenic in Pteris vittata L.
abstract: The interaction between arsenic (As) and phenanthrene (PHE) in Pteris vittata L. was investigated in this study. The migration and occurrence of PHE in P. vittata were determined by two-photon laser scanning confocal microscopy. Data indicated that PHE supplementation lowers the As concentration in P. vittata, decreasing As levels by 16.8-39.9% in the pinnae, 30.0-49.0% in the rachis, and 45-51.5% in the roots, respectively. Different arsenic species inhibited P. vittata PHE absorption. The most significant effect was observed using dimethylarsenic acid (DMA), which decreased PHE accumulation by 20.73%. With the exception of elevated As(V) concentrations in As(III)-treated plants, PHE treatment significantly reduced inorganic As concentrations in P. vittata. However, PHE elevated root DMA concentrations by 9%. According to in situ visualization, PHE is primarily found in the upper and lower epidermis and stomatal cells, particularly the stomata guard cells.
authors.affiliation: Beijing Key Laboratory of Environmental Damage Assessment and Remediation, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences (CAS), Beijing 100101, PR China. Electronic address: Liaoxy@igsnrr.ac.cn.
authors.forename: Xiaoyong
authors.initials: X
authors.lastname: Liao
authors.affiliation: Beijing Key Laboratory of Environmental Damage Assessment and Remediation, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences (CAS), Beijing 100101, PR China.
authors.forename: Xu
authors.initials: X
authors.lastname: Ma
authors.affiliation: Beijing Key Laboratory of Environmental Damage Assessment and Remediation, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences (CAS), Beijing 100101, PR China.
authors.forename: Xiulan
authors.initials: X
authors.lastname: Yan
authors.affiliation: Beijing Key Laboratory of Environmental Damage Assessment and Remediation, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences (CAS), Beijing 100101, PR China.
authors.forename: Longyong
authors.initials: L
authors.lastname: Lin
authors.affiliation: Beijing Key Laboratory of Environmental Damage Assessment and Remediation, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences (CAS), Beijing 100101, PR China.
authors.forename: Peili
authors.initials: P
authors.lastname: Shi
authors.affiliation: Beijing Key Laboratory of Environmental Damage Assessment and Remediation, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences (CAS), Beijing 100101, PR China.
authors.forename: Zeying
authors.initials: Z
authors.lastname: Wu
mesh_terms: D001151:Arsenic / Q000032:analysis / Q000737:chemistry*; D001692:Biological Transport; D002101:Cacodylic Acid / Q000737:chemistry; D018613:Microscopy, Confocal; D010616:Phenanthrenes / Q000032:analysis / Q000737:chemistry / Q000378:metabolism*; D018517:Plant Roots / Q000378:metabolism*; D032495:Pteris / Q000378:metabolism*; D012989:Soil Pollutants / Q000032:analysis / Q000737:chemistry*
chemical_list: D010616:Phenanthrenes; D012989:Soil Pollutants; C031181:phenanthrene; D002101:Cacodylic Acid; D001151:Arsenic
keywords: Arsenic; Hyperaccumulator; Polycyclic aromatic hydrocarbon; Speciation; Transport