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Amaranthus Tricolor Has the Potential for Phytoremediation of Cadmium-Contaminated Soils

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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/44114

Title: Amaranthus Tricolor Has the Potential for Phytoremediation of Cadmium-Contaminated Soils
Authors: Watanabe, Toshihiro Browse this author →KAKEN DB
Murata, Yasutoshi Browse this author
Osaki, Mitsuru Browse this author
Keywords: Amaranthus tricolor
cadmium
Caryophyllales
phytoremediation
Issue Date: Nov-2009
Publisher: Taylor & Francis
Journal Title: Communications in Soil Science and Plant Analysis
Volume: 40
Issue: 19-20
Start Page: 3158
End Page: 3169
Publisher DOI: 10.1080/00103620903261676
Abstract: Phytoremediation is a developing technology that uses plants to cleanup pollutants in soils. To adopt this technology to cadmium (Cd)-contaminated soils efficiently, a Cd hyperaccumulator with high growth rate and large biomass is required. In the present study, we selected Caryophyllales as a potential clade that might include Cd hyperaccumulators because this clade had a high mean concentration of zinc, which was a same group element as Cd. Three species in Caryophyllales and three species in different clades were grown with Cd. Among them, Amaranthus tricolor showed high accumulating ability for Cd under both water culture and soil culture conditions, whereas Brassica juncea, a known Cd hyperaccumulator, accumulated high concentrations of Cd in shoots only under water culture conditions. This result suggests that A. tricolor has Cd-solubilizing ability in rhizosphere. Since A. tricolor has large biomass and high growth rate, this species could be useful for phytoremediation of Cd-contaminated fields.
Rights: This is an electronic version of an article published in Communications in Soil Science and Plant Analysis, 40(19-20) 2009, 3158-3169. Communications in Soil Science and Plant Analysis is available online at: http://www.informaworld.com/openurl?genre=article&issn=1532-2416&volume=40&issue=19-20&spage=3158
Type: article (author version)
URI: http://hdl.handle.net/2115/44114
Appears in Collections:農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 渡部 敏裕

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