Gene expression profiling reflects physiological processes in salt acclimation of Synechocystis sp. strain PCC 6803

Plant Physiology
Kay MarinMartin Hagemann

Abstract

The kinetics of genome-wide responses of gene expression during the acclimation of cells of Synechocystis sp. PCC 6803 to salt stress were followed by DNA-microarray technique and compared to changes in main physiological parameters. During the first 30 min of salt stress, about 240 genes became induced higher than 3-fold, while about 140 genes were repressed. However, most changes in gene expression were only transient and observed among genes for hypothetical proteins. At 24 h after onset of salt stress conditions, the expression of only 39 genes remained significantly enhanced. Among them, many genes that encode proteins essential for salt acclimation were detected, while only a small number of genes for hypothetical proteins remained activated. Following the expression of genes for main functions of the cyanobacterial cell, i.e. PSI, PSII, phycobilisomes, and synthesis of compatible solutes, such as ion homeostasis, distinct kinetic patterns were found. While most of the genes for basal physiological functions were transiently repressed during the 1st h after the onset of salt stress, genes for proteins specifically related to salt acclimation were activated. This gene expression pattern reflects well the changes in main ph...Continue Reading

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Citations

Jul 5, 2006·Functional & Integrative Genomics·Chandan SahiAnil Grover
Sep 10, 2005·Applied and Environmental Microbiology·Anand Ballal, Shree K Apte
Mar 14, 2007·Journal of Bacteriology·Masumi SatoHirofumi Yoshikawa
Jul 23, 2008·BMC Genomics·Zhigang ZhangArkady Khodursky
Apr 17, 2008·Saline Systems·Jagroop PandhalCatherine A Biggs
Apr 9, 2009·FEBS Letters·Ornella CastielliMiguel A De la Rosa
Aug 15, 2015·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Otilia Cheregi, Christiane Funk
Mar 5, 2013·Biochemical and Biophysical Research Communications·Shailendra P Singh, Beronda L Montgomery
May 15, 2012·Journal of Basic Microbiology·Diby Paul
Nov 9, 2010·Environmental Microbiology·Stephan Klähn, Martin Hagemann
Dec 18, 2010·Microbiology·Ashish Kumar SrivastavaBrett A Neilan
Jun 14, 2015·Microbiological Research·Sumaya Al-HosaniLina F Yousef
Apr 14, 2016·Biochemistry·Fei LiShelagh Ferguson-Miller
Jul 14, 2010·FEMS Microbiology Reviews·Martin Hagemann
Feb 15, 2014·Photosynthesis Research·Stephanie G Hays, Daniel C Ducat
Jul 16, 2014·Frontiers in Bioengineering and Biotechnology·Beronda L Montgomery

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