Absorption of arsenate and arsenite by arsenic hyperaccumulating fern (Pteris vittata)

Kumiko Tashiro, Chihiro Inoue, Koichi Suto, Tadashi Chida, Nobuyuki Kitazima, Reiko Nagashima, Toshihito Kondo

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Phytoremediation using an arsenic hyperaccumulator, Pteris vittata L., has generated increasing interest worldwide, for it's both environmentally sound and cost effective. However, the mechanisms of arsenic uptake and accumulation by this plant are not clear at this time. This study shows the uptake of arsenate (As(V)) and arsenite (As(III)) using a hydroponie culture of P. vittata. The fern takes up both As(V) and As(III) from the culture which spiked with 50 mg of arsenic per litter, and can grow within 5 days of experimental period. Final amount of arsenic accumulated in the fern is 3.2 mg (As(V)), and 3.8 mg(As(III)). Although about 10% of the culture solution was decreased per day by transpiration of the fern, the arsenic concentration in the solution is not changed to the initial value in both cases. This result means that most of arsenic, both arsenate and arsenite, are transferred into the plant from root with a flow of water absorption.

Original languageEnglish
Title of host publicationProceedings of the Second IASTED International Conference on Advanced Technology in the Environmental Field, ATEF 2006
Pages244-246
Number of pages3
Publication statusPublished - 2007 Dec 1
Event2nd IASTED International Conference on Advanced Technology in the Environmental Field, ATEF 2006 - Lanzarote, Canary Islands, Spain
Duration: 2006 Feb 62006 Feb 8

Other

Other2nd IASTED International Conference on Advanced Technology in the Environmental Field, ATEF 2006
CountrySpain
CityLanzarote, Canary Islands
Period06/2/606/2/8

Keywords

  • Arsenic
  • Groundwater and soil remediation
  • Hyperaccumulation
  • Phytoremediation
  • Pteris vittata

ASJC Scopus subject areas

  • Computer Science(all)
  • Environmental Science(all)

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