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The Arabidopsis thaliana RNA Editing Factor SLO2, which affects the mitochondrial electron transport chain, participates in multiple stress and hormone responses

Qiang Zhu UGent, Jasper Dugardeyn UGent, Chunyi Zhang, Per Mühlenbock UGent, Peter J Eastmond, Roland Valcke, Barbara De Coninck, Sevgi Öden, Michail Karampelias, Bruno PA Cammue, et al. (2014) MOLECULAR PLANT. 7(2). p.290-310
abstract
Recently, we reported that the novel mitochondrial RNA editing factor SLO2 is essential for mitochondrial electron transport, and vital for plant growth through regulation of carbon and energy metabolism. Here, we show that mutation in SLO2 causes hypersensitivity to ABA and insensitivity to ethylene, suggesting a link with stress responses. Indeed, slo2 mutants are hypersensitive to salt and osmotic stress during the germination stage, while adult plants show increased drought and salt tolerance. Moreover, slo2 mutants are more susceptible to Botrytis cinerea infection. An increased expression of nuclear-encoded stress-responsive genes, as well as mitochondrial-encoded NAD genes of complex I and genes of the alternative respiratory pathway, was observed in slo2 mutants, further enhanced by ABA treatment. In addition, H2O2 accumulation and altered amino acid levels were recorded in slo2 mutants. We conclude that SLO2 is required for plant sensitivity to ABA, ethylene, biotic, and abiotic stress. Although two stress-related RNA editing factors were reported very recently, this study demonstrates a unique role of SLO2, and further supports a link between mitochondrial RNA editing events and stress response.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
stress, ABSCISIC-ACID, SLO2, PLANT-PATHOGEN INTERACTIONS, NUCLEAR GENE-EXPRESSION, SIGNAL-TRANSDUCTION, COMPLEX-I, PENTATRICOPEPTIDE REPEAT PROTEIN, PPR PROTEIN, TRANSCRIPTION FACTOR, OXIDATIVE STRESS, DYW DOMAIN, PPR protein, RNA editing, mitochondria, plant stress, ethylene, Arabidopsis thaliana, ABA
journal title
MOLECULAR PLANT
Mol. Plant.
volume
7
issue
2
pages
290 - 310
Web of Science type
Article
Web of Science id
000330841400004
JCR category
PLANT SCIENCES
JCR impact factor
6.337 (2014)
JCR rank
9/204 (2014)
JCR quartile
1 (2014)
ISSN
1674-2052
DOI
10.1093/mp/sst102
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
4350067
handle
http://hdl.handle.net/1854/LU-4350067
date created
2014-04-01 15:38:55
date last changed
2016-12-19 15:43:04
@article{4350067,
  abstract     = {Recently, we reported that the novel mitochondrial RNA editing factor SLO2 is essential for mitochondrial electron transport, and vital for plant growth through regulation of carbon and energy metabolism. Here, we show that mutation in SLO2 causes hypersensitivity to ABA and insensitivity to ethylene, suggesting a link with stress responses. Indeed, slo2 mutants are hypersensitive to salt and osmotic stress during the germination stage, while adult plants show increased drought and salt tolerance. Moreover, slo2 mutants are more susceptible to Botrytis cinerea infection. An increased expression of nuclear-encoded stress-responsive genes, as well as mitochondrial-encoded NAD genes of complex I and genes of the alternative respiratory pathway, was observed in slo2 mutants, further enhanced by ABA treatment. In addition, H2O2 accumulation and altered amino acid levels were recorded in slo2 mutants. We conclude that SLO2 is required for plant sensitivity to ABA, ethylene, biotic, and abiotic stress. Although two stress-related RNA editing factors were reported very recently, this study demonstrates a unique role of SLO2, and further supports a link between mitochondrial RNA editing events and stress response.},
  author       = {Zhu, Qiang and Dugardeyn, Jasper and Zhang, Chunyi and M{\"u}hlenbock, Per and Eastmond, Peter J and Valcke, Roland and De Coninck, Barbara and {\"O}den, Sevgi and Karampelias, Michail and Cammue, Bruno PA and Prinsen, Els and Van Der Straeten, Dominique},
  issn         = {1674-2052},
  journal      = {MOLECULAR PLANT},
  keyword      = {stress,ABSCISIC-ACID,SLO2,PLANT-PATHOGEN INTERACTIONS,NUCLEAR GENE-EXPRESSION,SIGNAL-TRANSDUCTION,COMPLEX-I,PENTATRICOPEPTIDE REPEAT PROTEIN,PPR PROTEIN,TRANSCRIPTION FACTOR,OXIDATIVE STRESS,DYW DOMAIN,PPR protein,RNA editing,mitochondria,plant stress,ethylene,Arabidopsis thaliana,ABA},
  language     = {eng},
  number       = {2},
  pages        = {290--310},
  title        = {The Arabidopsis thaliana RNA Editing Factor SLO2, which affects the mitochondrial electron transport chain, participates in multiple stress and hormone responses},
  url          = {http://dx.doi.org/10.1093/mp/sst102},
  volume       = {7},
  year         = {2014},
}

Chicago
Zhu, Qiang, Jasper Dugardeyn, Chunyi Zhang, Per Mühlenbock, Peter J Eastmond, Roland Valcke, Barbara De Coninck, et al. 2014. “The Arabidopsis Thaliana RNA Editing Factor SLO2, Which Affects the Mitochondrial Electron Transport Chain, Participates in Multiple Stress and Hormone Responses.” Molecular Plant 7 (2): 290–310.
APA
Zhu, Qiang, Dugardeyn, J., Zhang, C., Mühlenbock, P., Eastmond, P. J., Valcke, R., De Coninck, B., et al. (2014). The Arabidopsis thaliana RNA Editing Factor SLO2, which affects the mitochondrial electron transport chain, participates in multiple stress and hormone responses. MOLECULAR PLANT, 7(2), 290–310.
Vancouver
1.
Zhu Q, Dugardeyn J, Zhang C, Mühlenbock P, Eastmond PJ, Valcke R, et al. The Arabidopsis thaliana RNA Editing Factor SLO2, which affects the mitochondrial electron transport chain, participates in multiple stress and hormone responses. MOLECULAR PLANT. 2014;7(2):290–310.
MLA
Zhu, Qiang, Jasper Dugardeyn, Chunyi Zhang, et al. “The Arabidopsis Thaliana RNA Editing Factor SLO2, Which Affects the Mitochondrial Electron Transport Chain, Participates in Multiple Stress and Hormone Responses.” MOLECULAR PLANT 7.2 (2014): 290–310. Print.