Rice NIN‐LIKE PROTEIN 4 plays a pivotal role in nitrogen use efficiency

Wu, Jie; Zhang, Zisheng; Xia, Jianjun; Alfatih, Alamin; Song, Ying; Huang, Yongping; Wan, Guangyu; Sun, Liangqi; Tang, Hui; Liu, Yang; Wang, Shimei; Zhu, Qi-Sheng; Qin, Peng; Wang, Yuping; Li, Shigui; Mao, Chuanzao; Zhang, Guiquan; Chu, Chengcai; Yu, Linhui; Xiang, Cheng‐Bin

doi:10.1111/pbi.13475

Cited by 76 publications

(86 citation statements)

References 76 publications

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“…lines increased yield and NUE under moderate N levels compared with wild typ scriptomic analyses revealed that OsNLP4 orchestrates the expression of a ma known N uptake, assimilation, and signalling genes by directly binding to the responsive cis-element in their promoters to regulate their expression. Moreover pression of OsNLP4 can rescue the phenotype of atnlp7 mutant and enhance its [44]. Interestingly, the same results were found through GWAS analysis.…”

Section: Nitrate Relative Genes Play An Important Role In Improving Nue In Ricesupporting

confidence: 74%

Molecular Regulatory Networks for Improving Nitrogen Use Efficiency in Rice

Hou

et al. 2021

IJMS

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Nitrogen is an important factor limiting the growth and yield of rice. However, the excessive application of nitrogen will lead to water eutrophication and economic costs. To create rice varieties with high nitrogen use efficiency (NUE) has always been an arduous task in rice breeding. The processes for improving NUE include nitrogen uptake, nitrogen transport from root to shoot, nitrogen assimilation, and nitrogen redistribution, with each step being indispensable to the improvement of NUE. Here, we summarize the effects of absorption, transport, and metabolism of nitrate, ammonium, and amino acids on NUE, as well as the role of hormones in improving rice NUE. Our discussion provide insight for further research in the future.

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Section: Nitrate Relative Genes Play An Important Role In Improving Nue In Ricesupporting

confidence: 74%

Molecular Regulatory Networks for Improving Nitrogen Use Efficiency in Rice

Hou

et al. 2021

IJMS

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“…It was showed that OsNLP1, OsNLP3 and OsNLP4 can activate the expression of OsNR1 and OsNR2 genes while AtNLP8, a homologous gene of OsNLP2 , activate the expression of ABA catabolism gene CYP707A2 in Arabidopsis [ 35 , 37 , 38 , 46 ]. To further examine the relationship between OsNLP2 and those salt-induced genes, OsABA8ox1 , OsNR1 and OsNR2 ( Figure 4 b and Figure 5 c), we performed transient trans-activation expression assay for OsNLP2 on both ABA catabolism genes and nitrate reductase encoding genes.…”

Section: Resultsmentioning

confidence: 99%

“…Over expression of these genes all displayed higher yield per plant by increasing tiller number and grain number per plant. What is more, three OsNLPs were all found to bind the promoter of OsNR1 , OsNR2 and OsNiR which thereby regulate the expression of these genes [ 37 , 38 , 46 ]. Their results strongly indicated that OsNLPs might be involved in regulating NO production via NR-NiR pathway.…”

Section: Discussionmentioning

confidence: 99%

NLP2-NR Module Associated NO Is Involved in Regulating Seed Germination in Rice under Salt Stress

Peng

Song

et al. 2022

Plants

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Salt stress has the most severe impact on plant growth and development, including seed germination. However, little is known about the mechanism of NR (nitrate reductase)-associated nitric oxide (NO) regulates salt tolerance during seed germination in rice. Herein, we shown that inhibition of seed germination by salt stress was significantly impaired by sodium nitroferricyanide (SNP), a NO donor. Then a triple mutant, nr1/nr2/nr3, was generated. Results shown that germination of triple mutants were delayed and were much more sensitive to salt stress than WT plant, which can be rescued by application of SNP. qPCR analysis revealed that expressions of abscisic acid (ABA) catabolism gene, OsABA8ox1, was suppressed in triple mutants under salt stress, resulting in an elevated ABA content. Similar to SNP, application of nitrate also rescued seed germination under salt stress, which, however, was blocked in the triple mutants. Further study revealed that a nitrate responsive transcript factor, OsNLP2, was induced by salt stress, which thus up-regulates the expression of OsNRs and NR activity, resulting in promoted salt tolerance during seed germination. In addition, nitrate-mediated salt tolerance was impaired in mutant of aba8ox1, a target gene for NLP2. Transient trans-activation assays further revealed NLP2 can significantly activate the expression of OsABA8ox1 and OsNR1, suggesting that NLP2 activates expression of ABA catabolism gene directly or indirectly via NR-associated NO. Taken together, our results demonstrate that NLP2-NR associated NO was involved in salt response by increasing ABA catabolism during seed germination and highlight the importance of NO for stress tolerance of plants.

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“…At the reverse, osnlp1 mutants display lower grain yield and lower NUE under N-limiting conditions. OsNLP4 expression is induced by N deficiency and its overexpression promoted higher grain yield and NUE under moderate N level [108]. OsNLP4 regulates and orchestrates the expression of a majority of known N uptake, assimilation, and signaling genes, by directly binding to the nitrate-responsive cis-element located in their promoters.…”

Section: N Signaling and Transcriptional Regulationmentioning

confidence: 99%

Recent Advances on Nitrogen Use Efficiency in Rice

Lee

2021

Agronomy

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Rice (Oryza sativa L.) is a daily staple food crop for more than half of the global population and improving productivity is an important task to meet future demands of the expanding world population. The application of nitrogen (N) fertilization improved rice growth and productivity in the world, but excess use causes environmental and economic issues. One of the main goals of rice breeding is reducing N fertilization while maintaining productivity. Therefore, enhancing rice nitrogen use efficiency (NUE) is essential for the development of sustainable agriculture and has become urgently needed. Many studies have been conducted on the main steps in the use of N including uptake and transport, reduction and assimilation, and translocation and remobilization, and on transcription factors regulating N metabolism. Understanding of these complex processes provides a base for the development of novel strategies to improve NUE for rice productivity under varying N conditions.

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Rice NIN‐LIKE PROTEIN 4 plays a pivotal role in nitrogen use efficiency

Cited by 76 publications

References 76 publications

Molecular Regulatory Networks for Improving Nitrogen Use Efficiency in Rice

Molecular Regulatory Networks for Improving Nitrogen Use Efficiency in Rice

NLP2-NR Module Associated NO Is Involved in Regulating Seed Germination in Rice under Salt Stress

Recent Advances on Nitrogen Use Efficiency in Rice

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