Overexpression of <i>SIZ1</i> enhances tolerance to cold and salt stresses and attenuates response to abscisic acid in <i>Arabidopsis thaliana</i>

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Sumoylation is a post-translational modification to control several cellular functions, including responses to environmental stresses and hormones in plants, and SIZ1 is a SUMO (small ubiquitin-related modifier) E3 ligase that plays an important role in sumoylation. In this study, we produced transgenic <i>Arabidopsis thaliana</i> plants with a moderately higher expression of <i>SIZ1</i>. Compared to wild type, the transgenic plants, with or without cold acclimation, were tolerant to freezing stress when subjected to freezing temperatures. The transgenic plants exhibited enhanced performance associated with robust shoot and root growth under salinity stress, whereas the wild type exhibited necrosis in the leaves with salt treatment. Furthermore, <i>SIZ1</i> overexpression attenuated the root growth inhibition caused by abscisic acid. These results suggest that SIZ1 has the potential to genetically improve plant responses to abiotic stresses.

収録刊行物

  • Plant Biotechnology

    Plant Biotechnology 31(2), 167-172, 2014

    日本植物細胞分子生物学会

各種コード

  • NII論文ID(NAID)
    130003391371
  • NII書誌ID(NCID)
    AA11250821
  • 本文言語コード
    ENG
  • ISSN
    1342-4580
  • NDL 記事登録ID
    025551082
  • NDL 請求記号
    Z54-J126
  • データ提供元
    NDL  J-STAGE 
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