ABC1K10a, an atypical kinase, functions in plant salt stress tolerance

BMC Plant Biology
Xiaohui QinChun-Peng Song

Abstract

ABC1K (Activity of BC1 complex Kinase) is an evolutionarily primitive atypical kinase family widely distributed among prokaryotes and eukaryotes. The ABC1K protein kinases in Arabidopsis are predicted to localize either to the mitochondria or chloroplasts, in which plastid-located ABC1K proteins are involved in the response against photo-oxidative stress and cadmium-induced oxidative stress. Here, we report that the mitochondria-localized ABC1K10a functions in plant salt stress tolerance by regulating reactive oxygen species (ROS). Our results show that the ABC1K10a expression is induced by salt stress, and the mutations in this gene result in overaccumulation of ROS and hypersensitivity to salt stress. Exogenous application of the ROS-scavenger GSH significantly represses ROS accumulation and rescues the salt hypersensitive phenotype of abc1k10a. ROS overaccumulation in abc1k10a mutants under salt stress is likely due to the defect in mitochondria electron transport chain. Furthermore, defects of several other mitochondria-localized ABC1K genes also result in salt hypersensitivity. Taken together, our results reveal that the mitochondria-located ABC1K10a regulates mitochondrial ROS production and is a positive regulator of sal...Continue Reading

References

Mar 9, 1999·The Plant Journal : for Cell and Molecular Biology·S J Clough, A F Bent
May 5, 2001·Annual Review of Plant Physiology and Plant Molecular Biology·Ian M Moller
Sep 16, 2003·Current Opinion in Plant Biology·Jian Kang Zhu
Sep 21, 2004·Annual Review of Plant Biology·Klaus Apel, Heribert Hirt
Oct 7, 2004·Trends in Plant Science·Ron MittlerFrank Van Breusegem
Mar 6, 2008·American Journal of Human Genetics·Julie MolletAgnès Rötig
Aug 29, 2009·Plant, Cell & Environment·Gad MillerRon Mittler
Sep 8, 2009·Trends in Endocrinology and Metabolism : TEM·Robert O PoytonPablo R Castello
Sep 28, 2010·Plant Physiology and Biochemistry : PPB·Sarvajeet Singh Gill, Narendra Tuteja
Sep 10, 2011·Trends in Plant Science·Richard P JacobyA Harvey Millar
Jun 15, 2012·Trends in Plant Science·Peter K LundquistKlaas J van Wijk
Oct 30, 2012·Molecular Cell·Laura A Sena, Navdeep S Chandel
May 2, 2013·Plant Physiology·Jacopo MartinisFelix Kessler
Nov 12, 2013·Molecular Cell·Shunping YanXinnian Dong
Nov 26, 2013·The Plant Journal : for Cell and Molecular Biology·Jacopo MartinisFelix Kessler
Apr 24, 2014·Journal of Experimental Botany·Ahmed IsmailPeter Nick
Dec 17, 2014·Molecular Cell·Jonathan A StefelyDavid J Pagliarini
Jan 1, 2015·Proceedings of the National Academy of Sciences of the United States of America·Pengcheng WangJian-Kang Zhu
Aug 1, 1993·Physiologia Plantarum·Albert C Purvis, Robert L Shewfelt
Dec 6, 2017·The New Phytologist·Yongqing Yang, Yan Guo
Feb 10, 2019·Free Radical Biology & Medicine·Fuqiang CuiKirk Overmyer
Mar 15, 2019·Nature Communications·Zhijia YangYan Guo
Apr 18, 2019·Nature Communications·Hao LiuChun-Peng Song
Feb 1, 2020·Nature Communications·Zhen LinPengcheng Wang

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Citations

Nov 17, 2020·Frontiers in Plant Science·Zhikun DuanLianwei Peng

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Methods Mentioned

BETA
transgenic
salt stress
PCR
Protein Assay
X-ray

Software Mentioned

MEGA4

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