Transcriptional regulation of genes involved in sulfur assimilation in plants: Understanding from the analysis of high-affinity sulfate transporters

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Abstract

Sulfur is one of the essential macronutrients required for plant growth. Since the expression of several sulfur-assimilatory genes is stimulated under the condition of sulfur deficiency (-S), transcriptional regulation of these genes is considered to be critical for the control of sulfur assimilation. In the last several years, the author and coworkers have been investigated molecular mechanisms of -S-inducible expression of high-affinity sulfate transporters, SULTR1;1 and SULTR1;2 in Arabidopsis thaliana. SULTR1;1 and SULTR1;2 facilitate sulfate uptake in roots. This review summarizes the recent progress about the transcriptional regulation of these sulfate transporters by focusing on three major topics. 1) Identification of a cis-acting element involved in the -S-inducible expression of SULTR1;1. 2) Cytokinin-dependent repression of SULTR expression and sulfate uptake. 3) Central transcription regulator SLIM1 controlling -S responsive gene expression including sulfur assimilation and metabolism.

Original languageEnglish
Pages (from-to)323-326
Number of pages4
JournalPlant Biotechnology
Volume25
Issue number4
Publication statusPublished - Sep 8 2008
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Agronomy and Crop Science
  • Plant Science

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