Assimilation of Nitrates in Plants

Rashid, Sufiya; Rashid, Kausar; Javid, Hanan; Wani, Bilal Ahmad; Magray, Junaid A.; Qadir, Rouf ul; Islam, Tajamul; Javed, Mubariz; Nawchoo, Irshad A.

doi:10.1201/9781003248361-5

Cited by 3 publications

(2 citation statements)

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“…These enzymes, which include glutamine synthetase, nitrite reductase, and nitrate reductase, are in charge of changing nitrogen from its inorganic to organic forms. The plant subsequently utilizes the resultant organic forms for different metabolic procedures (Rashid et al, 2022). The economic yield and general health of the plant are significantly influenced by the plant's capacity to control its nitrogen metabolism and endure water stress.…”

Section: Asn and Snp Synergistically Improve Plant Tolerance To Water...mentioning

confidence: 99%

Asparagine and nitric oxide jointly enhance antioxidant capacity and nitrogen metabolism to improve drought resistance in cotton: Evidence from long‐term field trials

Akin,

Kaya

2023

Food and Energy Security

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Asparagine (Asn) and nitric oxide (NO) can enhance plant tolerance to abiotic stress, but their interaction is not well understood. Cotton is a vital resource for the textile industry, but its yield is reduced by drought stress, which could threaten its global supply in a warming and stressful world. Improving cotton's drought tolerance is crucial for supporting the textile industry. Two simultaneous field experiments were conducted to study the effect of Asn and sodium nitroprusside (SNP), a NO donor, on cotton's drought tolerance. Two irrigation treatments were applied: control (C: 100% A pan) and drought stress (50% A pan). The plants were also sprayed with two plant stimulants before imposing drought stress: Mock control, 20 mM Asn, and 0.2 mM SNP, either alone or together. Drought stress impaired plant growth, photosynthesis, yield, nitrogen metabolism, and antioxidant defense, while increasing oxidative stress and free amino acid levels. However, Asn and SNP treatments alleviated these negative effects and improved antioxidant enzyme activity, plant growth, yield, and nitrogen content. The Asn + SNP treatment also increased irrigation water productivity under water‐limited conditions, suggesting its potential for enhancing water use efficiency in cotton production. The combined treatment was more effective than the single treatments, indicating a synergistic effect of Asn and SNP in enhancing drought tolerance in cotton. These results imply that Asn and SNP could be useful tools for sustaining cotton production under drought conditions by boosting nitrogen metabolism and antioxidant defense, thereby contributing to the global supply of cotton and supporting the textile industry.

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Section: Asn and Snp Synergistically Improve Plant Tolerance To Water...mentioning

confidence: 99%

Asparagine and nitric oxide jointly enhance antioxidant capacity and nitrogen metabolism to improve drought resistance in cotton: Evidence from long‐term field trials

Akin,

Kaya

2023

Food and Energy Security

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“…GS1 plays a crucial role in the initial assimilation of NH 4 + or NO 3 − from the soil and also participates in nitrogen assimilation from processes releasing NH 4 + , such as amino acid transamination and protein degradation during senescence ( Thomsen et al, 2014 ; Krapp, 2015 ; Fortunato et al, 2023 ). Conversely, GS2 is predominantly responsible for assimilating NH 4 + generated during photorespiration in chloroplasts ( Daniel-Vedele & Chaillou, 2005 ; Masclaux-Daubresse et al, 2010 ; Rashid et al, 2022 ). The expression of GS gene is intricately regulated by factors such as light exposure, nitrogen availability, and the plant’s developmental stage ( Fortunato et al, 2023 ; Larios et al, 2004 ).…”

Section: Introductionmentioning

confidence: 99%

Genomic organization and expression profiles of nitrogen assimilation genes in Glycine max

Elsanosi,

Zhu,

Zhou

et al. 2024

PeerJ

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Background Glutamine synthetase (GS), glutamate synthase (GOGAT), and nitrate reductase (NR) are key enzymes involved in nitrogen assimilation and metabolism in plants. However, the systematic analysis of these gene families lacked reports in soybean (Glycine max (L.) Merr.), one of the most important crops worldwide. Methods In this study, we performed genome-wide identification and characterization of GS, GOGAT, and NR genes in soybean under abiotic and nitrogen stress conditions. Results We identified a total of 10 GS genes, six GOGAT genes, and four NR genes in the soybean genome. Phylogenetic analysis revealed the presence of multiple isoforms for each gene family, indicating their functional diversification. The distribution of these genes on soybean chromosomes was uneven, with segmental duplication events contributing to their expansion. Within the nitrogen assimilation genes (NAGs) group, there was uniformity in the exon-intron structure and the presence of conserved motifs in NAGs. Furthermore, analysis of cis-elements in NAG promoters indicated complex regulation of their expression. RT-qPCR analysis of seven soybean NAGs under various abiotic stresses, including nitrogen deficiency, drought-nitrogen, and salinity, revealed distinct regulatory patterns. Most NAGs exhibited up-regulation under nitrogen stress, while diverse expression patterns were observed under salt and drought-nitrogen stress, indicating their crucial role in nitrogen assimilation and abiotic stress tolerance. These findings offer valuable insights into the genomic organization and expression profiles of GS, GOGAT, and NR genes in soybean under nitrogen and abiotic stress conditions. The results have potential applications in the development of stress-resistant soybean varieties through genetic engineering and breeding.

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Chemically Degraded Soil: Strategies for Mitigating its Toxicity and Enhancing Sustainable Crop Production

Alvi,

Ali,

Haider

et al. 2024

J Soil Sci Plant Nutr

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Assimilation of Nitrates in Plants

Cited by 3 publications

References 0 publications

Asparagine and nitric oxide jointly enhance antioxidant capacity and nitrogen metabolism to improve drought resistance in cotton: Evidence from long‐term field trials

Asparagine and nitric oxide jointly enhance antioxidant capacity and nitrogen metabolism to improve drought resistance in cotton: Evidence from long‐term field trials

Genomic organization and expression profiles of nitrogen assimilation genes in Glycine max

Chemically Degraded Soil: Strategies for Mitigating its Toxicity and Enhancing Sustainable Crop Production

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