GSE227072 Integrated transcriptomic analysis identifies coordinated responses to nitrogen and phosphate deficiency in rice

Contributors : Fei Wang ; Yan Wang ; Luying Ying ; Hong LuSeries Type : Expression profiling by high throughput sequencingOrganism : Oryza sativa Japonica GroupNitrogen (N) and phosphorus (P) are two primary components of fertilizers for crop production. Coordinated acquisition and utilization of N and P are crucial for plants to achieve nutrient balance and optimal growth in a changing rhizospheric nutrient environment. However, little is known about how N and P signaling pathways are integrated. We performed transcriptomic analyses and physiological experiments to explore gene expression profiles and physiological homeostasis in the response of rice (Oryza sativa) to N and P deficiency. We determined that the transcript levels of 763 core genes changed under both N or P starvation conditions. Among these core genes, we focused on the transcription factor gene NITRATE-INDUCIBLE, GARP-TYPE TRANSCRIPTIONAL REPRESSOR 1 (NIGT1) and show that its encoded protein is a positive regulator of P homeostasis and a negative regulator of N acquisition in rice. These results provide new clues about the mechanisms underlying the interaction between plant N and P starvation responses.
Source: GEO: Gene Expression Omnibus - Category: Genetics & Stem Cells Tags: Expression profiling by high throughput sequencing Oryza sativa Japonica Group Source Type: research