NIN-like protein 7 promotes nitrate-mediated lateral root development by activating transcription of TRYPTOPHAN AMINOTRANSFERASE RELATED 2

Zhang, Tingting; Kang, Hui; Fu, Li; Sun, Wei-Jian; Gao, Wensheng; You, Chun‐Xiang

doi:10.1016/j.plantsci.2020.110771

Cited by 23 publications

(15 citation statements)

References 76 publications

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“…Recent genome-wide transcriptional profiling and time-resolved ChIP-seq analysis revealed that TAR2 and PIN7 are among the top NLP7-regulated genes that are also directly bound by NLP7 (Alvarez et al, 2020). This explains their upregulation in presence of NO À 3 (Maghiaoui et al, 2020) and the involvement of TAR2-mediated auxin biosynthesis for NO À 3 -dependent LR emergence (Zhang et al, 2021b).…”

Section: Nutrient-hormone Relations In Lr Primordium Progression and ...mentioning

confidence: 99%

Nutrient–hormone relations: Driving root plasticity in plants

2022

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Optimal plant development requires root uptake of 14 essential mineral elements from the soil. Since the bioavailability of these nutrients underlies large variation in space and time, plants must dynamically adjust their root architecture to optimize nutrient access and acquisition. The information on external nutrient availability and whole-plant demand is translated into cellular signals that often involve phytohormones as intermediates to trigger a systemic or locally restricted developmental response. Timing and extent of such local root responses depend on the overall nutritional status of the plant that is transmitted from shoots to roots in the form of phytohormones or other systemic long-distance signals. The integration of these systemic and local signals then determines cell division or elongation rates in primary and lateral roots, the initiation, emergence, or elongation of lateral roots, as well as the formation of root hairs. Here, we review the cascades of nutrient-related sensing and signaling events that involve hormones and highlight nutrient-hormone relations that coordinate root developmental plasticity in plants.

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Section: Nutrient-hormone Relations In Lr Primordium Progression and ...mentioning

confidence: 99%

Nutrient–hormone relations: Driving root plasticity in plants

2022

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“…OsNLP1 genome-edited lines showed impaired grain yield and NUE under N limiting conditions ( Alfatih et al, 2020 ) . The AtNLP7 promotes lateral root development by binding to TRYPTOPHAN AMINOTRANSFERASE RELATED 2 (TAR2) promoter region in a nitrate dependent manner ( Zhang et al, 2021b ). In cotton, the overexpression of Arabidopsis NLP7 enhanced the NUE and yield ( Jan et al, 2022 ).…”

Section: Introductionmentioning

confidence: 99%

Genome Editing Targets for Improving Nutrient Use Efficiency and Nutrient Stress Adaptation

et al. 2022

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In recent years, the development of RNA-guided genome editing (CRISPR-Cas9 technology) has revolutionized plant genome editing. Under nutrient deficiency conditions, different transcription factors and regulatory gene networks work together to maintain nutrient homeostasis. Improvement in the use efficiency of nitrogen (N), phosphorus (P) and potassium (K) is essential to ensure sustainable yield with enhanced quality and tolerance to stresses. This review outlines potential targets suitable for genome editing for understanding and improving nutrient use (NtUE) efficiency and nutrient stress tolerance. The different genome editing strategies for employing crucial negative and positive regulators are also described. Negative regulators of nutrient signalling are the potential targets for genome editing, that may improve nutrient uptake and stress signalling under resource-poor conditions. The promoter engineering by CRISPR/dead (d) Cas9 (dCas9) cytosine and adenine base editing and prime editing is a successful strategy to generate precise changes. CRISPR/dCas9 system also offers the added advantage of exploiting transcriptional activators/repressors for overexpression of genes of interest in a targeted manner. CRISPR activation (CRISPRa) and CRISPR interference (CRISPRi) are variants of CRISPR in which a dCas9 dependent transcription activation or interference is achieved. dCas9-SunTag system can be employed to engineer targeted gene activation and DNA methylation in plants. The development of nutrient use efficient plants through CRISPR-Cas technology will enhance the pace of genetic improvement for nutrient stress tolerance of crops and improve the sustainability of agriculture.

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“…The Arabidopsis NODULE INCEPTION (NIN)-LIKE PROTEIN ( NLP ) gene family encodes the core transcription factors that regulate nitrate signaling in plants ( Wang et al, 2018 ). Among these, NLP7 acts as a master regulator, controlling the primary response in nitrate signaling ( Konishi and Yanagisawa, 2013 ; Marchive et al, 2013 ; Liu et al, 2017 ; Zhang et al, 2021 ). The loss-of-function nlp7 exhibits a nitrogen-deficient phenotype as well as tolerance to drought ( Castaings et al, 2009 ).…”

Section: Introductionmentioning

confidence: 99%

The Loss of Function of the NODULE INCEPTION-Like PROTEIN 7 Enhances Salt Stress Tolerance in Arabidopsis Seedlings

Lee

Choi

et al. 2022

Front. Plant Sci.

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Plants acquire nitrogen, an essential macronutrient, from the soil as nitrate. Since nitrogen availability is a major determinant of crop productivity, the soil is amended with nitrogenous fertilizers. Extensive use of irrigation can lead to the accumulation of salt in the soil, which compromises crop productivity. Our characterization of NODULE INCEPTION (NIN)-like PROTEIN 7 (NLP7), a transcription factor regulating the primary response to nitrate, revealed an intersection of salt stress and nitrate metabolism. The growth of loss-of-function mutant nlp7 was tolerant to high salinity that normally reduces the fresh weight and chlorophyll and protein content of wild type (Col-0). On a medium with high salinity, the nlp7 experienced less stress, accumulating less proline, producing less nitric oxide (NO) and reactive oxygen species (ROS), and expressing lower transcript levels of marker genes, such as RD29A and COR47, than Col-0. Nevertheless, more sodium ions were translocated to and accumulated in the shoots of nlp7 than that of Col-0. Since nlp7 also expressed less nitrate reductase (NR) activity, nitrate accumulated to abnormally high levels with or without salinity. We attributed the enhanced salt tolerance of nlp7 to the balanced accumulation of nitrate anions and sodium cations. Our results suggest that nitrate metabolism and signaling might be targeted to improve salt tolerance.

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NIN-like protein 7 promotes nitrate-mediated lateral root development by activating transcription of TRYPTOPHAN AMINOTRANSFERASE RELATED 2

Cited by 23 publications

References 76 publications

Nutrient–hormone relations: Driving root plasticity in plants

Nutrient–hormone relations: Driving root plasticity in plants

Genome Editing Targets for Improving Nutrient Use Efficiency and Nutrient Stress Adaptation

The Loss of Function of the NODULE INCEPTION-Like PROTEIN 7 Enhances Salt Stress Tolerance in Arabidopsis Seedlings

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