Back

OsNLP4-OsD3 module integrates nitrogen-iron nutrient signals to promote rice tillering by repressing strigolactone signaling

Song, Y.; Xiang, C.

2023-03-01 plant biology
10.1101/2023.02.28.530551 bioRxiv
Show abstract

Rice tillers are a major yield component regulated by phytohormones and nutrients. How nutrients interact with phytohormones to control tillering remains largely elusive. Here, we report a novel mechanism by which the transcription factor NIN-like protein 4 (OsNLP4) integrates nitrogen (N)-iron (Fe) nutrient signals to promote tillering by repressing OsD3 in strigolactone (SL) signaling. We show that the N-Fe balance modulates OsNLP4 nuclear accumulation, which is increased by Fe through H2O2 reduction. Furthermore, OsNLP4 upregulates multiple H2O2 scavenging genes, providing a positive regulatory loop for OsNLP4 nuclear accumulation. Our findings uncover a fundamental mechanism by which the OsNLP4-OsD3 module integrates N-Fe nutrient signals to downregulate SL signaling and thereby promote rice tillering and yield, thus facilitating sustainable agriculture worldwide.

Matching journals

The top 5 journals account for 50% of the predicted probability mass.

50% of probability mass above

"Similar papers" are the closest papers from that journal in the model's embedding space. They show what the match is built on, but the ranking comes mostly from a classifier over the whole training set, not from these examples alone.