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Reference Detail
| Reference | ||
|---|---|---|
| Author | Wang F., Wang Y., Ying L., Lu H., Liu Y., Liu Y., Xu J., Wu Y., Mo X., Wu Z., Mao C. | |
| Title | Integrated transcriptomic analysis identifies coordinated responses to nitrogen and phosphate deficiency in rice. | |
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Abstract: Nitrogen (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 (<i>Oryza sativa</i>) to N and P deficiency. We revealed that N and P shortage inhibit rice growth and uptake of other nutrients. Gene Ontology (GO) analysis of differentially expressed genes (DEGs) suggested that N and Pi deficiency stimulate specific different physiological reactions and also some same physiological processes in rice. We established the transcriptional regulatory network between N and P signaling pathways based on all DEGs. 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 <i>NITRATE-INDUCIBLE, GARP-TYPE TRANSCRIPTIONAL REPRESSOR 1</i> (<i>NIGT1</i>) and show that its encoded protein is a positive regulator of P homeostasis and a negative regulator of N acquisition in rice. NIGT1 promoted Pi uptake but inhibited N absorption, induced the expression of Pi responsive genes <i>PT2</i> and <i>SPX1</i> and repressed the N responsive genes <i>NLP1</i> and <i>NRT2.1</i>. These results provide new clues about the mechanisms underlying the interaction between plant N and P starvation responses. |
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| Journal | Front Plant Sci | |
| Country | China | |
| Volume | 14 | |
| Pages | 1164441 | |
| Year | 2023 | |
| PubMed ID | 37223782 | |
| PubMed Central ID | 10200874 | |
| DOI | 10.3389/fpls.2023.1164441 | |
| URL | - | |
| Relation | ||
| Gene | NIGT1 NLP1 NRT2.1 PT2 SPX1 | |
| INSD | - | |
| Strain | Wild Core Collection | - |
| Induced Mutation Lines(NIG Collection) | - | |
| Sterile Seed Strain | - | |
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Lethal Embryo Mutantion Strain |
- | |
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Stages in Each Organ - Muant Lines (Gene) |
- | |
| Cultivated Varieties(NIG Collection) | - | |
| Stages in Each Organ | - | |
