Post-Transcriptional Control of SULTR1;1 and SULTR1;2 High-Affinity Sulfate Transporters in Arabidopsis

DOI

Bibliographic Information

Other Title
  • シロイヌナズナの高親和型硫酸イオントランスポーターSULTR1;1、SULTR1;2の転写後制御

Abstract

SULTR1;1 and SULTR1;2 are two high-affinity sulfate transporters co-localizing at epidermis and cortex of Arabidopsis roots for the uptake of sulfate from the environment during sulfur limitation (-S). Previously, we have reported that -S induction of SULTR1;1 and SULTR1;2 transcripts are dependent on their promoters activities. To analyze post-transcriptional regulation of SULTR1;1 and SULTR1;2, we generated transgenic plants that rescue the sulfate uptake capacity of sultr1;1 sultr1;2 double knockout mutant by constitutively over-expressing SULTR1;1 or SULTR1;2 under the control of 35S RNA promoter. In transgenic plants, SULTR1;1 mRNA was expressed only in roots, and SULTR1;1 protein content was increased by -S. By contrast, SULTR1;2 mRNA was expressed in both roots and leaves, however SULTR1;2 protein was accumulated exclusively in roots during -S. The present study suggested existence of post-transcriptional mechanisms for the control of SULTR1;1 and SULTR1;2, playing important roles in optimizing the uptake of sulfate during -S.

Journal

Details 詳細情報について

  • CRID
    1390282680609061376
  • NII Article ID
    130006994002
  • DOI
    10.14841/jspp.2007.0.291.0
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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