P. W. Morgan

Light dependent activation of the GCN2 kinase under cold and salt stress is mediated by the photosynthetic status of the chloroplast

The paper shows that GCN2 kinase in Arabidopsis is light-dependent and activated by cold and salt stress, linking chloroplast redox status to cytosolic translation regulation.

Light activates the translational regulatory GCN2 kinase via reactive oxygen species emanating from the chloroplast

The paper shows light-induced reactive oxygen species activate the GCN2 kinase in Arabidopsis, leading to eIF2 phosphorylation and affecting cytosolic translation.