森林起源のフルボ酸鉄がコンブやワカメの生長に果たす効果 Effect of Fulvic Acid-Fe Derived from the Forest on the Growth of Laminaria Religiosa Miyabe and Undaria Pinnatifida Suringan

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Abstract

森林起源のフルポ酸鉄が海藻に果たす効果について, コンブと.ワカメの遊走子 (胞子) ならびにコンブの幼体を用いて検討した.遊走子が卵を形成する割合を フルポ-Fe, EDTA-Fe, 無定形水酸化鉄をそれぞれ0.2μMとして, 10℃で培養した.30日後, 卵形成はそれぞれ70, 54, 25%であった. ワカメの卵形成についてはそれぞれ55, 42, 25%であった.また, 幼体の生長はフルポ酸-Fe共存下では無定形水酸化鉄に比べ3倍も速かった.<BR>コンブによる鉄の摂取速度を フルポ酸-Feあるいは無定形水酸化鉄を用いて測定したが, フルポ酸-Feの方が1オーダ速い摂取速度を示した. フルポ酸-Fe共存下で卵形成割合が高いことならびに幼体の生長が速いことは鉄摂取速度の相違によって説明出来ると思われる.<BR>なお, 本研究はソルト・サイエンス研究財団のプロジェクト研究「 沿岸海水環境の変化と生態系への影響」の一部として行なった.プ ロジェクトリーダーである東京大学名誉教授堀部純男先生にまた有益なご助言をいただいた東京農業大学名誉教授杉二郎先生に心から謝意を表します.

Oogonium formation and the growth rates of young sporophytes in the presence of several forms of iron were bserved. The respective percentages of oogonium formation of <I>L. religiose</I> and <I>U. pinnatifida</I> after 30 day cultures were 70, 54, 25 and 5%, and 55, 42, 25 and 0% with the addition of fulvic acid-Fe (FA-Fe), EDTA-Fe, morphous Fe (am-Fe) and control in due order. The growth rate of young sporophytes of L. religiosa with FA-Fe was about 3 times higher than that with am-Fe. The iron uptake rate of <I>L. religiosa</I> with FA-Fe was about 20 mes higher than that with am-Fe. The high percentage of oogonium formation and the high growth rate with A-Fe will be explained by the high Fe uptake rate with FA-Fe.

Journal

  • Bulletin of the Society of Sea Water Science, Japan

    Bulletin of the Society of Sea Water Science, Japan 52(5), 315-318, 1998-10-01

    The Society of Sea Water Science, Japan

References:  18

  • <no title>

    GEIDER R. J.

    Photosynthesis Res. 39, 275, 1994

    Cited by (5)

  • <no title>

    ZAFIRIOU O. C.

    Mar. Chem. 8, 281, 1980

    Cited by (1)

  • <no title>

    HUDSON R. J. M.

    Mar. Chem. 38, 209, 1992

    Cited by (2)

  • <no title>

    MATSUNAGA K.

    Jan. J. Limnol. 43, 182, 1982

    Cited by (1)

  • <no title>

    MATSUNAGA K.

    Estuar. Coastal Shelf Sci. 18, 615, 1984

    Cited by (1)

  • <no title>

    HERING J. G.

    Envir. Sci. Tech. 22, 1234, 1988

    Cited by (1)

  • <no title>

    GRANELI E.

    J. Exp. Mar. Biol. Ecol. 136, 89, 1990

    Cited by (1)

  • <no title>

    CARLSSON P.

    Estur. Coastal Shelf Sci. 36, 433, 1993

    Cited by (1)

  • <no title>

    GLOVER H. E.

    Limnol. Oceanogr. 23, 534, 1978

    Cited by (2)

  • <no title>

    SUZUKI Y.

    Fish. Sci. 60, 373, 1994

    Cited by (1)

  • <no title>

    SUZUKI Y.

    Phycologia 34, 201, 1995

    Cited by (2)

  • <no title>

    MATSUNAGA K.

    J. Appl. Phycol. 6, 397, 1994

    Cited by (1)

  • <no title>

    SUZUKI Y.

    J. Exp. Mar. Biol. Ecol. 225, 69, 1998

    Cited by (2)

  • <no title>

    BYRNE R. H.

    Mar. Chem. 4, 255, 1976

    Cited by (1)

  • <no title>

    MANTOURA R. F. C.

    Anal. Chim. Acta 76, 97, 1975

    Cited by (1)

  • <no title>

    HUDSON R. J. M.

    Limnol. Oceanogr. 34, 1113, 1989

    Cited by (1)

  • <no title>

    KONONOVA M. M.

    soil organic matter ; its role in soil formation and in soil fertility 544, 1966

    Cited by (1)

  • <no title>

    KUMA K.

    Mar. Chem. 38, 133, 1992

    Cited by (2)

Codes

  • NII Article ID (NAID)
    10008282976
  • NII NACSIS-CAT ID (NCID)
    AN0018645X
  • Text Lang
    ENG
  • Article Type
    ART
  • ISSN
    03694550
  • NDL Article ID
    4574841
  • NDL Source Classification
    ZM44(科学技術--地球科学--海洋・陸水・火山) // ZP8(科学技術--化学・化学工業--無機化学・無機化学工業)
  • NDL Call No.
    Z15-47
  • Data Source
    CJP  NDL  J-STAGE 
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