Tandem gene amplification restores photosystem II accumulation in cytochrome b559 mutants of cyanobacteria

January 5, 2022

Title

Tandem gene amplification restores photosystem II accumulation in cytochrome b559 mutants of cyanobacteria

Author

Yi-Fang Chiu, Han-Yi Fu, Petra Skotnicova, Keng-Min Lin, Josef Komenda, Hsiu-An Chu

Year

2021

Journal

New Phytologist

Abstract

RNA-seq analysis showed greatly increased transcript levels of the psbEFLJ operon in these autotrophic transformants. Multiple copies of the psbEFLJ operon in these transformants were only maintained during autotrophic growth, while its copy numbers gradually decreased under photoheterotrophic conditions. Two-dimensional PAGE analysis of membrane proteins revealed a strong deficiency in PSII complexes in the Cyt b559 mutants that was reversed in the autotrophic transformants.

Instrument

FP-8300

Keywords

RNA-seq, Cytochrome, cyanobacteria