Carbon and nitrogen metabolism in rice cultivars affected by salt-alkaline stress

Guo, Liying; Yuya, LU; Shu, Bao; Zhang, Qiang; Geng, Yanqiu; Shao, Xiwen

doi:10.1071/cp20445

Cited by 13 publications

(9 citation statements)

References 45 publications

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“…Improving NUE under salt stress is critical for plants, as they are increasingly confronted with two major environmental constraints: excessive N fertilization and soil salinization. Several studies have been conducted to assess NUE under saline conditions (Song et al, 2019;Guo et al, 2021;Phan et al, 2022; Table 1). It has been proposed that NUE can be determined by agronomic NUE (aNUE), physiological NUE (pNUE), internal NUE (iNUE) and N recovery efficiency (NRE) which gets affected by salt stress.…”

Section: Regulation Of Nitrogen Metabolism and Nitrogen Use Efficienc...mentioning

confidence: 99%

“…Furthermore, NUE was significantly reduced in the salt-sensitive genotype of Avena sativa (oat) compared to tolerant genotype (Song et al, 2019). Recently, Guo et al (2021) revealed that salt stress significantly reduced N metabolism, NUE, and grain yield in rice seedlings. Effective crop management practices and smart decision-making are required to ensure high crop yields under salt stress conditions and meet increasing global food security.…”

Section: Regulation Of Nitrogen Metabolism and Nitrogen Use Efficienc...mentioning

confidence: 99%

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Sustaining nitrogen dynamics: A critical aspect for improving salt tolerance in plants

et al. 2023

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In the current changing environment, salt stress has become a major concern for plant growth and food production worldwide. Understanding the mechanisms of how plants function in saline environments is critical for initiating efforts to mitigate the detrimental effects of salt stress. Agricultural productivity is linked to nutrient availability, and it is expected that the judicious metabolism of mineral nutrients has a positive impact on alleviating salt-induced losses in crop plants. Nitrogen (N) is a macronutrient that contributes significantly to sustainable agriculture by maintaining productivity and plant growth in both optimal and stressful environments. Significant progress has been made in comprehending the fundamental physiological and molecular mechanisms associated with N-mediated plant responses to salt stress. This review provided an (a) overview of N-sensing, transportation, and assimilation in plants; (b) assess the salt stress-mediated regulation of N dynamics and nitrogen use- efficiency; (c) critically appraise the role of N in plants exposed to salt stress. Furthermore, the existing but less explored crosstalk between N and phytohormones has been discussed that may be utilized to gain a better understanding of plant adaptive responses to salt stress. In addition, the shade of a small beam of light on the manipulation of N dynamics through genetic engineering with an aim of developing salt-tolerant plants is also highlighted.

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Section: Regulation Of Nitrogen Metabolism and Nitrogen Use Efficienc...mentioning

confidence: 99%

Section: Regulation Of Nitrogen Metabolism and Nitrogen Use Efficienc...mentioning

confidence: 99%

Sustaining nitrogen dynamics: A critical aspect for improving salt tolerance in plants

et al. 2023

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“…46 Increased soil salinity leads to soil compaction and a reduction in plant growth, nutrient acquisition and yield due to altered carbon and nitrogen metabolism. 47 High salt concentrations negatively impact the physiology and development of plants by disturbing cellular ion balance, causing osmotic loss, disturbing membrane integrity and increasing the production of reactive oxygen species. Adopting suitable agronomic strategies to mitigate the impact of salt stress and identifying salt-tolerant varieties is the key to developing resilience in agricultural systems.…”

Section: Salinity Stressmentioning

confidence: 99%

Bibliometric Analysis of Peer-Reviewed Literature on Stress Factors Affecting Agricultural Productivity

Sisodia

Sharma

2023

Curr Agri Res Jour

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Sustaining agricultural productivity is essential to ensuring food security. Climate change, increasing population and dwindling resources are factors of concern threatening crop productivity. Research across the globe have focused on seeking innovative measures to protect and enhance crop yield. We explored and analyzed peer-reviewed literature to provide an understanding of current and emerging trends in the field. A bibliometric method was followed using the database Scopus. Search queries used to retrieve documents were “Agriculture/crop productivity” and “Plant stress”. The study period was restricted to the last five years, from 2017-2021. The search query found 2207 documents in Scopus under the agriculture and plant stress theme. Increasing growth of publications was observed in successive years. Research activities in this field have the most contributors from Asian countries – China and India followed by the US. The major stresses affecting agricultural productivity being investigated were-Water stress, Temperature stress, Salinity stress. Amongst these, the theme related to water stress/ precipitation/ drought stress was the most investigated. The availability of water has a pivotal role in sustainable agriculture. The use of conservation agricultural practices such as intercropping, no-tillage, and soil mulching has proven to be effective in retaining soil water content and reducing the dependency on irrigation, especially in rainfed areas, thereby assisting in drought mitigation and increasing crop yield. Precision agriculture approach employing satellite data to predict weather and rainfall and early detection of stress signals using hyperspectral reflectance has shown promising results in ensuring sustained productivity. Breeding and transgenic approaches for plants with higher water use efficiency (WUE) and the ability to tolerate water stress are key areas of research being followed throughout the world.

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“…Carbon and nitrogen metabolism were closely related, and their degree of coordination not only affected the growth and development process but also affected yield and quality of crops (Guo et al, 2021;Cheng et al, 2019). Long-term warming in cool region can improve rice yields in three ways (Fig.…”

Section: The Effect Of Physiological Response Of Rice On Yield Under ...mentioning

confidence: 99%

Improving Stay-green Traits and Related Physiological Metabolism Increased the Rice Yield under Long-term Warming in Cool Region

Ma,

Zhou,

et al. 2023

Preprint

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Research on the effect of long-term warming on rice in cool region is still rare. This study used the widely cultivated japonica rice Jiyang100 in Northeast China as the experiment material. We set up warming treatments at three growth stages of rice in the field: the tillering-panicle initiation stage (T1), the whole growth stage (T2) and the grain-filling stage (T3). The rice yield showed a trend of T1 > T2 > T3 > CK in both years. The positive effects of T1, T2 and T3 on the total number of spikelets per hole significantly increased the yield, with average increased by 11.5%, 9.9% and 6.5%, respectively. Each warming treatment had significant positive effect on the stay-green traits, photosynthesis, sucrose synthesis, and nitrogen metabolism of rice. The yield was significantly positively correlated with SPAD, soluble sugar content, sucrose content, SPS, NR, GS, and GOGAT activity. The physiological models constructed by SPAD and sucrose content could explain the changes of the yield (R2=0.704). The stay-green traits had significant correlation between carbon and nitrogen metabolism, and it played a pivotal role in them. Wherein, SPAD had significant positive correlation with soluble sugar content, soluble protein content, NR, GS, GOGAT and GDH activity, and significant negative correlation with AI activity. The stay-green ability had significant positive correlation with Pn, soluble sugar content and soluble protein content. The above results indicated that the coupling interaction of stay-green traits, nitrogen metabolism and carbon metabolism increased the sink capacity potential and sink storage supply capacity, which was the reason for the increase in rice yield under long-term warming in cool region.

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Carbon and nitrogen metabolism in rice cultivars affected by salt-alkaline stress

Cited by 13 publications

References 45 publications

Sustaining nitrogen dynamics: A critical aspect for improving salt tolerance in plants

Sustaining nitrogen dynamics: A critical aspect for improving salt tolerance in plants

Bibliometric Analysis of Peer-Reviewed Literature on Stress Factors Affecting Agricultural Productivity

Improving Stay-green Traits and Related Physiological Metabolism Increased the Rice Yield under Long-term Warming in Cool Region

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