Expression of Primary Sigma Factor (PSF) and PSF-Like Sigma Factors in the Cyanobacterium Synechocystis sp. Strain PCC 6803 - UTU Research Portal

A1 Refereed original research article in a scientific journal

Expression of Primary Sigma Factor (PSF) and PSF-Like Sigma Factors in the Cyanobacterium Synechocystis sp. Strain PCC 6803

Authors: Ilona Tuominen, Esa Tyystjärvi, Taina Tyystjärvi

Publisher: Journal of Bacteriology

Publication year: 2003

Volume: 185

Issue: 3

First page : 1116

Last page: 1119

DOI: https://doi.org/10.1128/JB.185.3.1116–1119.2003

Abstract

Large amounts of sigA mRNA, encoding the primary sigma factor (PSF) in Synechocystis sp. strain PCC 6803, accumulated under standard growth conditions, while stress conditions like heat or high salinity led to a rapid decrease in sigA mRNA content. The sigB, sigC, sigD, and sigE genes, encoding PSF-like factors, were under strict physiological control.