Elongator and SPT4/SPT5 complexes as proxy to study RNA polymerase II transcript elongation control of plant development

Authors

  • Mieke Van Lijsebettens,

    Corresponding author
    1. Department of Plant Systems Biology, VIB, Ghent, Belgium
    2. Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
    • Correspondence: Professor Mieke Van Lijsebettens, VIB, Ghent University, Technologiepark 925, Ghent 9052, Belgium

      E-mail: mieke.vanlijsebettens@psb.ugent.be

      Fax: +32-9-3313809

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  • Julius Dürr,

    1. Department of Cell Biology and Plant Biochemistry, Biochemie-Zentrum Regensburg (BZR), University of Regensburg, Regensburg, Germany
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  • Magdalena Woloszynska,

    1. Department of Plant Systems Biology, VIB, Ghent, Belgium
    2. Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
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  • Klaus D. Grasser

    1. Department of Cell Biology and Plant Biochemistry, Biochemie-Zentrum Regensburg (BZR), University of Regensburg, Regensburg, Germany
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Abstract

The elongation phase of the RNA polymerase II (RNAPII) transcription process is dynamic and regulated. Elongator and SUPPRESSOR OF Ty4 (SPT4)/SPT5 are transcript elongation factors that contribute to the regulation of mRNA synthesis by RNA polymerase II in the chromatin context. Recently, the Elongator complex consisting of six subunits and the SPT4/SPT5 heterodimer were isolated from Arabidopsis. Mutant plants affected in the expression of Elongator or SPT4/SPT5 share various auxin-signaling phenotypes. In line with that observation, auxin-related genes are prominent among the genes differentially expressed in these mutants. Exemplified by Elongator and SPT4/SPT5, we discuss here the role that transcript elongation factors may play in the control of plant growth and development.

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