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Increased sensitivity to drought stress in atlon4 Arabidopsis mutant

  • Article
  • Plant Physiology
  • Published:
Chinese Science Bulletin

Abstract

The ATP-dependent serine protease Lon belongs to the AAA+ superfamily, which is widely distributed in bacteria, archaea, and eukaryotic cells. Lon participates in the regulation of numerous physiological processes and gene expression via degrading various unstable and non-native regulators. In this study, we showed that the Arabidopsis atlon4 mutant is more sensitive to drought stress than wild-type plants. Compared with wild-type plants, atlon4 mutant plants showed increased water loss, decreased water use efficiency, and impaired stomatal closure in drought stress conditions.

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Authors and Affiliations

  1. School of Life Sciences, Lanzhou University, Lanzhou, 730000, China

    XiaoYi Li

  2. Photosynthesis Research Center, Key Laboratory of Photobiology, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China

    Ying Mu, XuWu Sun & LiXin Zhang

Authors
  1. XiaoYi Li
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  2. Ying Mu
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  3. XuWu Sun
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  4. LiXin Zhang
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Corresponding author

Correspondence to XuWu Sun.

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Cite this article

Li, X., Mu, Y., Sun, X. et al. Increased sensitivity to drought stress in atlon4 Arabidopsis mutant. Chin. Sci. Bull. 55, 3668–3672 (2010). https://doi.org/10.1007/s11434-010-4166-4

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  • DOI: https://doi.org/10.1007/s11434-010-4166-4

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