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Mn accumulation and tolerance in Celosia argentea Linn.: a new Mn-hyperaccumulating plant species.
Liu, Jie; Shang, Weiwei; Zhang, Xuehong; Zhu, Yinian; Yu, Ke.
Afiliación
  • Liu J; Guangxi Scientific Experiment Center of Mining, Metallurgy, and Environment, Guilin University of Technology, Guilin, Guangxi 541004, China. Electronic address: Liu-j7775@163.com.
  • Shang W; Guangxi Scientific Experiment Center of Mining, Metallurgy, and Environment, Guilin University of Technology, Guilin, Guangxi 541004, China.
  • Zhang X; Guangxi Scientific Experiment Center of Mining, Metallurgy, and Environment, Guilin University of Technology, Guilin, Guangxi 541004, China.
  • Zhu Y; Guangxi Scientific Experiment Center of Mining, Metallurgy, and Environment, Guilin University of Technology, Guilin, Guangxi 541004, China.
  • Yu K; Guangxi Scientific Experiment Center of Mining, Metallurgy, and Environment, Guilin University of Technology, Guilin, Guangxi 541004, China.
J Hazard Mater ; 267: 136-41, 2014 Feb 28.
Article en En | MEDLINE | ID: mdl-24444455
Identifying a hyperaccumulator is an important groundwork for the phytoextraction of heavy metal-contaminated soil. Celosia argentea Linn., which grew on a Mn tailing wasteland, was found to hyperaccumulate Mn (14 362mgkg(-1) in leaf dry matter) in this study. To investigate Mn tolerance and accumulation in C. argentea, a hydroponic culture experiment was conducted in a greenhouse. Results showed that the biomass and the relative growth rate of C. argentea were insignificantly different (p>0.05) at the Mn supply level ranging from 2.5mgL(-1) (control) to 400mgL(-1). Manganese concentrations in leaves, stems, and roots reached maxima of 20228, 8872, and 2823mgkg(-1) at 600mgMnL(-1), respectively. The relative rate of Mn accumulation increased by 91.2% at 400mgMnL(-1). Over 95% of the total Mn taken up by C. argentea was translocated to shoots. Thus, C. argentea exhibits the basic characteristics of a Mn-hyperaccumulator. This species has great potential to remediate Mn-contaminated soil cheaply and can also aid the studies of Mn uptake, translocation, speciation, distribution and detoxification in plants.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Celosia / Manganeso Tipo de estudio: Prognostic_studies Idioma: En Revista: J Hazard Mater Asunto de la revista: SAUDE AMBIENTAL Año: 2014 Tipo del documento: Article Pais de publicación: Países Bajos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Celosia / Manganeso Tipo de estudio: Prognostic_studies Idioma: En Revista: J Hazard Mater Asunto de la revista: SAUDE AMBIENTAL Año: 2014 Tipo del documento: Article Pais de publicación: Países Bajos