モエジマシダ胞子の発芽における砒素耐性および前葉体の砒素吸収能力に関する実験的研究  [in Japanese] Arsenic tolerance and accumulation in the gametophytes of the fern Pteris vittata L.  [in Japanese]

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Author(s)

    • 榊原 正幸 Sakakibara Masayuki
    • 愛媛大学大学院理工学研究科数理物質科学専攻:防災情報研究センター Department of Mathematics, Physics and Earth Sciences, Graduate School of Science and Engineering, Ehime University:Center for Disaster Management Information Research, Regional disaster management sysytem research division
    • 梅木 育世 Umeki Ikuyo
    • 愛媛大学理学部地球科学科:(現)いよてつ高島屋 Department of Earth Science, Faculty of Sciences, Ehime University:Iyotetsu Takashimaya
    • 井上 雅裕 Inouhe Masahiro
    • 愛媛大学大学院理工学研究科環境機能科学専攻 Department of Chemistry and Biology, Graduate School of Science and Engineering, Ehime University

Abstract

The sporophyte of the fern Pteris vittata is known to be a hyperaccumulator of arsenic in its fronds to>2.3% of its dry weight. However, very little has been stated about hyperaccumulation of arsenic by gametophytes of P. vittata. Here we report that gametophytes of P. vittata from Beppu City and Okinawa Island in western Japan hyperaccumulate arsenic in a similar manner to that observed in the sporophyte. The gametophytes from the Beppu City are able to grow in medium containing 10mM arsenate and accumulate>1.8% of their dry weight as arsenic. The results suggest gametophytes of P. vittata also have a great potential to be used for phytoremediation and the relative ability of tolerance and accumulation show some local variation of their sources.

The sporophyte of the fern Pteris vittata is known to be a hyperaccumulator of arsenic in its fronds to>2.3% of its dry weight. However, very little has been stated about hyperaccumulation of arsenic by gametophytes of P. vittata. Here we report that gametophytes of P. vittata from Beppu City and Okinawa Island in western Japan hyperaccumulate arsenic in a similar manner to that observed in the sporophyte. The gametophytes from the Beppu City are able to grow in medium containing 10mM arsenate and accumulate>1.8% of their dry weight as arsenic. The results suggest gametophytes of P. vittata also have a great potential to be used for phytoremediation and the relative ability of tolerance and accumulation show some local variation of their sources.

Journal

  • Memoirs of the Faculty of Science,Ehime University

    Memoirs of the Faculty of Science,Ehime University 13, 1-6, 2007

    Ehime University

Codes

  • NII Article ID (NAID)
    110006484137
  • NII NACSIS-CAT ID (NCID)
    AN10408332
  • Text Lang
    JPN
  • Article Type
    Departmental Bulletin Paper
  • Journal Type
    大学紀要
  • ISSN
    09195203
  • NDL Article ID
    8820823
  • NDL Source Classification
    ZM2(科学技術--科学技術一般--大学・研究所・学会紀要)
  • NDL Call No.
    Z14-2057
  • Data Source
    NDL  NII-ELS  IR 
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