An Arabidopsis soluble chloroplast proteomic analysis reveals the participation of the Executer pathway in response to increased light conditions

Journal of Experimental Botany
Estefanía UbereguiMónica Balsera

Abstract

The Executer1 and Executer2 proteins have a fundamental role in the signalling pathway mediated by singlet oxygen in chloroplast; nonetheless, not much is known yet about their specific activity and features. Herein, we have followed a differential-expression proteomics approach to analyse the impact of Executer on the soluble chloroplast protein abundance in Arabidopsis. Because singlet oxygen plays a significant role in signalling the oxidative response of plants to light, our analysis also included the soluble chloroplast proteome of plants exposed to a moderate light intensity in the time frame of hours. A number of light- and genotype-responsive proteins were detected, and mass-spectrometry identification showed changes in abundance of several photosynthesis- and carbon metabolism-related proteins as well as proteins involved in plastid mRNA processing. Our results support the participation of the Executer proteins in signalling and control of chloroplast metabolism, and in the regulation of plant response to environmental changes.

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Citations

Sep 8, 2015·International Journal of Molecular Sciences·Mohammad-Zaman NouriSetsuko Komatsu
Jan 26, 2016·Journal of Proteomics·Xin Wang, Setsuko Komatsu
Mar 1, 2016·Journal of Proteomics·Mohibullah ShahFrancisco A P Campos
Jan 7, 2016·Annual Review of Plant Biology·Kai Xun ChanBarry J Pogson
Oct 3, 2018·Journal of Experimental Botany·Liangsheng Wang, Klaus Apel
Dec 20, 2019·Journal of Experimental Botany·Tegan Armarego-MarriottŁucja Kowalewska
Mar 17, 2018·Journal of Experimental Botany·Samuel J WatsonPaul Jarvis
Aug 24, 2019·Current Opinion in Plant Biology·Jesse D Woodson

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Methods Mentioned

BETA
PCR
genotyping
electrophoresis
PCA
light treatment
protein folding

Software Mentioned

Labscan
Redfin
Executers
Executer
Mascot

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