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ABC1K10a, an atypical kinase, functions in plant salt stress tolerance
BACKGROUND: 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...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7288548/ https://www.ncbi.nlm.nih.gov/pubmed/32522160 http://dx.doi.org/10.1186/s12870-020-02467-4 |
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author | Qin, Xiaohui Duan, Zhikun Zheng, Yuan Liu, Wen-Cheng Guo, Siyi Botella, José Ramón Song, Chun-Peng |
author_facet | Qin, Xiaohui Duan, Zhikun Zheng, Yuan Liu, Wen-Cheng Guo, Siyi Botella, José Ramón Song, Chun-Peng |
author_sort | Qin, Xiaohui |
collection | PubMed |
description | BACKGROUND: 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. RESULTS: 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. CONCLUSIONS: Taken together, our results reveal that the mitochondria-located ABC1K10a regulates mitochondrial ROS production and is a positive regulator of salt tolerance in Arabidopsis. |
format | Online Article Text |
id | pubmed-7288548 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | BioMed Central |
record_format | MEDLINE/PubMed |
spelling | pubmed-72885482020-06-11 ABC1K10a, an atypical kinase, functions in plant salt stress tolerance Qin, Xiaohui Duan, Zhikun Zheng, Yuan Liu, Wen-Cheng Guo, Siyi Botella, José Ramón Song, Chun-Peng BMC Plant Biol Research Article BACKGROUND: 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. RESULTS: 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. CONCLUSIONS: Taken together, our results reveal that the mitochondria-located ABC1K10a regulates mitochondrial ROS production and is a positive regulator of salt tolerance in Arabidopsis. BioMed Central 2020-06-10 /pmc/articles/PMC7288548/ /pubmed/32522160 http://dx.doi.org/10.1186/s12870-020-02467-4 Text en © The Author(s) 2020 Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data. |
spellingShingle | Research Article Qin, Xiaohui Duan, Zhikun Zheng, Yuan Liu, Wen-Cheng Guo, Siyi Botella, José Ramón Song, Chun-Peng ABC1K10a, an atypical kinase, functions in plant salt stress tolerance |
title | ABC1K10a, an atypical kinase, functions in plant salt stress tolerance |
title_full | ABC1K10a, an atypical kinase, functions in plant salt stress tolerance |
title_fullStr | ABC1K10a, an atypical kinase, functions in plant salt stress tolerance |
title_full_unstemmed | ABC1K10a, an atypical kinase, functions in plant salt stress tolerance |
title_short | ABC1K10a, an atypical kinase, functions in plant salt stress tolerance |
title_sort | abc1k10a, an atypical kinase, functions in plant salt stress tolerance |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7288548/ https://www.ncbi.nlm.nih.gov/pubmed/32522160 http://dx.doi.org/10.1186/s12870-020-02467-4 |
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