Ammonium transporters in arbuscular mycorrhizal symbiosis

DOI
  • Kobae Yoshihiro
    Graduate School of Bioagricultural Sciences, Nagoya University
  • Tamura Yosuke
    Graduate School of Bioagricultural Sciences, Nagoya University
  • Takai Shoko
    Graduate School of Bioagricultural Sciences, Nagoya University
  • Banba Mari
    Graduate School of Bioagricultural Sciences, Nagoya University
  • Hata Shingo
    Graduate School of Bioagricultural Sciences, Nagoya University

Bibliographic Information

Other Title
  • 菌根誘導型アンモニウムトランスポーターの機能と分子進化

Description

Soybean (Glycine max) is one of the world's leading protein and oil crops. The mechanism of nutrient uptake from the soil is an important matter. Approximately two-thirds of all species of land plant are symbiotically associated with arbuscular mycorrhizal (AM) fungi in the roots. Fungal hyphae can explore the soil, efficiently take up nutrients from the soil and transfer to the roots of host plants. In colonized root cortical cells, fungal intraradical hyphae spread in the intracellular spaces and temporally form characteristic symbiotic structures, arbuscules, where fungal hyphae are highly branched to extend their surface area. Although it is assumed that arbuscule is the site of major Pi transfer to the plants, there is no direct evidence that ammonium is also transferred at this structure. Therefore, to know the mechanism of ammonium uptake in soybean associated with the AM symbiosis, we searched AMT genes in JGI Glycine max genome database with BLAST analysis, and found sixteen genes (GmAMTs). The gene specific RT-PCR indicated that three genes (GmAMT4.1, GmAMT4.3 and GmAMT4.4) were the AM-inducible candidates. We will discuss the function of them.

Journal

Details 詳細情報について

  • CRID
    1390001205632223488
  • NII Article ID
    130006993802
  • DOI
    10.14841/jspp.2010.0.0950.0
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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