Ribosomal protein QM/RPL10 positively regulates defense and protein translation mechanisms during nonhost disease resistance.

Ribosomes play an integral part in plant growth, development and defense responses. We report that the Ribosomal protein QM/RPL10 and its interacting proteins RNA recognition motif (RRM), RPL30, RPL23, and RPS30 have extra-ribosomal functions and play a role in nonhost disease resistance. The RPL10-silenced Nicotiana benthamiana plants showed compromised disease resistance against nonhost pathogen Pseudomonas syringae pv. tomato T1. The RNA-sequencing analysis revealed that many genes involved in defense and protein translation mechanisms were differentially affected due to silencing of NbRPL10. Arabidopsis AtRPL10 RNAi and rpl10 mutant lines showed compromised nonhost disease resistance to P. syringae pv. tomato T1 and P. syringae pv. tabaci. Overexpression of AtRPL10A in Arabidopsis resulted in improved disease resistance against host pathogen P. syringae pv. tomato (DC3000). These results suggest that QM/RPL10 positively regulates the defense and translation-associated genes during nonhost pathogen infection.

Dr. Ramu S Vemanna, Laboratory of Plant Functional Genomics, Regional Centre for Biotechnology, Faridabad.

For Full article:    https://bsppjournals.onlinelibrary.wiley.com/doi/10.1111/mpp.12991