Source leaves and CRF2 coordinate systemic nitrate responses in Arabidopsis

Source leaves and CRF2 coordinate systemic nitrate responses in Arabidopsis

Plants adjust nitrate acquisition to spatially heterogeneous soils, but how shoots decode root-derived systemic signals remains largely unclear. Using Arabidopsis split-root assays, we show that source leaves are necessary and sufficient for the early root transcriptional response to systemic nit...