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Reference Detail
| Reference | ||
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| Author | Ji C., Li J., Jiang C., Zhang L., Shi L., Xu F., Cai H. | |
| Title | Zinc and nitrogen synergistic act on root-to-shoot translocation and preferential distribution in rice. | |
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Abstract: Multiple studies have shown strong relationships between different nutrients in plants, and the important role of N in Zn acquisition and translocation has been recognized. The aim of this study was to estimate the effect of Zn on N uptake, translocation, and distribution in rice as well as the corresponding molecular mechanisms. We also aimed to evaluate the impact of N on the Zn content in rice grains which is closely related to the Zn nutrition in humans with rice-based diets. We conducted both field trials and hydroponic cultures of two rice cultivars to analyze the growth and yield, the uptake, translocation, and distribution of N and Zn, as well as the expression of N transport and assimilation genes, and the Zn transporter genes under different combined applications of N and Zn. Zn supply promoted the root-to-shoot translocation (12-70% increasing) and distribution of N into the leaves (19-49% increasing) and brown rice (6-9% increasing) and increased the rice biomass (by 14-35%) and yield (by 13-63%). Zn supply induced the expression of <i>OsNRTs</i> and <i>OsAMTs</i> in both roots and shoots, but repressed the expression of <i>OsNiR2</i>, <i>OsGS1;2</i>, and <i>OsFd-GOGAT</i> in roots, whereas it activated the expression of <i>OsNiR</i>2, <i>OsGS1;1</i>, <i>OsGS2</i>, and <i>OsFd-GOGAT</i> in the shoots. Moreover, the enzyme activities of nitrite reductase, nitrate reductase, and glutamine synthetase increased and the free NO3 - concentration decreased, but the soluble protein concentration increased significantly in the shoots after Zn supply. Synergistically, N significantly facilitated the root-to-shoot translocation (1.68-11.66 fold) and distribution of Zn into the leaves (1.68-6.37 fold) and brown rice (7-12% increasing) and upregulated the expression levels of Zn transporter genes in both the roots and shoots. We propose a working model of the cross-talk between Zn and N in rice plants, which will aid in the appropriate combined application of Zn and N fertilizers in the field to improve both N utilization in plants and Zn nutrition in humans with rice-based diets. |
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| Journal | Journal of Advanced Research | |
| Country | China | |
| Volume | 35 | |
| Pages | 187-198 | |
| Year | 2022 | |
| PubMed ID | 35003800 | |
| PubMed Central ID | 8721242 | |
| DOI | 10.1016/j.jare.2021.04.005 | |
| URL | - | |
| Relation | ||
| Gene | GLN1;1 GLN1;2 GS2 NIR2 | |
| 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 | - | |
