Complete loss of RelA and SpoT homologs in Arabidopsis reveals the importance of the plastidial stringent response in the interplay between chloroplast metabolism and plant defense response
M. Inazu, T. Nemoto, S. Suzuki, S. Ono, Y. Kanno, M. Seo, A. Oikawa, S. Masuda
This study shows that loss of plastid ppGpp synthases/hydrolases in Arabidopsis leads to reduced ppGpp levels, leaf chlorosis, and enhanced defense gene expression under nitrogen starvation.
bioRxiv · Sep 20, 2022Plant Biology