Suppressing photorespiration for the improvement in photosynthesis and crop yields: A review on the role of S-allantoin as a nitrogen source

Fahad, Shah; Khan, Faheem Ahmed; Pandupuspitasari, NuruliarizkiShinta; Hussain, Saddam; Khan, Imtiaz Ali; Saeed, Muhammad; Saud, Shah; Hassan, Shah; Adnan, Muhammad; Amanullah, .; Arif, Muhammad; Alam, Mukhtar; Ullah, Hidayat; Hakeem, Khalid Rehman; Alharby, Hesham F.; Riaz, Muhammad; Sameeullah, Muhammad; Hammad, Hafiz Mohkum; Nasim, Wajid; Ahmad, Shakeel; Afzal, Muhammad; Alghamdi, Salem S.; Bamagoos, Atif A.; Abd_Allah, Elsayed Fathi; Huang, Jikun

doi:10.1016/j.jenvman.2019.02.082

Cited by 28 publications

(20 citation statements)

References 81 publications

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“…The photoprotective effect of photorespiration in the ygl53 mutant might be secondary to its more important role in regulating nitrogen metabolism. Previous studies also supported the hypothesis that photorespiration could promote nitrogen metabolism. − NH 3 released by photorespiration will be reassimilated and reused via the GS/GOGAT cycle in plants, and 2-OG can also enter nitrogen metabolism for the synthesis of amino acids and proteins . This is very useful for nitrogen metabolism, especially when nitrogen accumulation of plants is insufficient.…”

Section: Discussionmentioning

confidence: 63%

“…29−31 NH 3 released by photorespiration will be reassimilated and reused via the GS/GOGAT cycle in plants, and 2-OG can also enter nitrogen metabolism for the synthesis of amino acids and proteins. 29 This is very useful for nitrogen metabolism, especially when nitrogen accumulation of plants is insufficient. Photorespiration may be the major glycine and serine biosynthesis pathway in plant cells, thus leading to the drain of energy and RuBP from the Calvin cycle.…”

Section: ■ Discussionmentioning

confidence: 99%

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Photorespiration Regulates Carbon–Nitrogen Metabolism by Magnesium Chelatase D Subunit in Rice

Liang

Wang

Zeng

et al. 2020

J. Agric. Food Chem.

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The growth and development of plants are dependent on the interaction between carbon and nitrogen metabolism. Essential information about the metabolic regulation of carbon−nitrogen metabolism is still lacking, such as possible interactions among nitrogen metabolism, photosynthesis, and photorespiration. This study shows that higher photorespiration consumes more CO 2 fixed by photosynthesis, making the high photosynthetic efficiency mutant fail to increase production. In order to clarify the effects of photosynthesis and photorespiration on carbon and nitrogen metabolism in high photosynthetic efficiency mutant, a yellow-green leaf mutant (ygl53) was isolated from rice (Oryza sativa L.). Its chlorophyll (Chl) content decreased, but chloroplast development was not affected. Genetic analysis demonstrated that YGL53 encodes the magnesium chelatase D subunit (ChlD). The ygl53 mutant showed an increased net assimilation rate (An) and electron transport flux efficiency and catalase (CAT) activity, and it also had a higher photorespiration rate (Pr), lower H 2 O 2 , and reduced nitrogen uptake efficiency (NUpE); however, there was no loss in yield. The higher activities of glutamate synthase (GOGAT) and glutamine synthetase (GS) ensure the α-ketoglutaric acid (2-OG) and ammonia (NH 3 ) availabilities, which are produced from photorespiration in the ygl53 mutant. These have an important function for carbon and nitrogen metabolism homeostasis in ygl53. Further analysis indicated that the energy and substances derived from carbon metabolism supplemented nitrogen metabolism in the form of photorespiration to ensure its normal development when the An of photosynthesis was increased in the ygl53 mutant with reduced NUpE.

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Section: Discussionmentioning

confidence: 63%

Section: ■ Discussionmentioning

confidence: 99%

Photorespiration Regulates Carbon–Nitrogen Metabolism by Magnesium Chelatase D Subunit in Rice

Liang

Wang

Zeng

et al. 2020

J. Agric. Food Chem.

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“…Allantoin ( Scheme 1 ) possesses physiological functions, such as promoting cell growth [ 12 ], accelerating wound healing [ 13 ], and softening keratin [ 14 ]. It is a good healing agent for skin wounds.…”

Section: Introductionmentioning

confidence: 99%

Allantoin Inhibits Compound 48/80-Induced Pseudoallergic Reactions In Vitro and In Vivo

et al. 2022

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Pseudoallergic reactions are hypersensitivity reactions mediated by an IgE-independent mechanism. Since allantoin (AT)-mediated pseudoallergy has not been studied, in this study, our objective is to investigate the anti-pseudoallergy effect of AT and its underlying mechanism. In vitro, β-hexosaminidase (β-Hex) and histamine (HIS) release assays, inflammatory cytokine assays, toluidine blue staining, and F-actin microfilament staining were used to evaluate the inhibitory effect of AT in RBL-2H3 cells stimulated with Compound 48/80 (C48/80). Western blot analysis is further performed to investigate intracellular calcium fluctuation-related signaling pathways. In vivo, Evans Blue extraction, paw swelling, and the diameter of Evans Blue extravasation were evaluated, and skin tissues are examined for histopathological examination in mice with passive cutaneous anaphylaxis (PCA) induced by C48/80. Body temperature is measured, and the levels of cytokines are further determined by ELISA kits in mice with active systemic anaphylaxis (ASA) induced by C48/80. The results show that AT dose-dependently inhibited degranulation in C48/80-stimulated RBL-2H3 cells by inhibiting β-Hex and HIS release, reducing the levels of TNF-α, IL-8, and MCP-1, inhibiting shape changes due to degranulation and disassembling the F-actin cytoskeleton. Furthermore, AT dose-dependently inhibits the phosphorylation of PLCγ and IP3R. In vivo, AT decreased Evans Blue extravasation, paw swelling, and the diameter of Evans Blue extravasation and significantly ameliorate pathological changes and mast cell degranulation in C48/80-induced PCA. Furthermore, AT help the mice recover from the C48/80-induced decrease in body temperature and decreased the levels of cytokines in C48/80-treated ASA mice. Our results indicate that allantoin inhibits compound 48/80-induced pseudoallergic reactions. AT has the potential to be used in IgE-independent anti-allergic and anti-inflammatory therapies.

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“…The use of growth regulators, or biostimulants, has been evaluated as an agronomic management strategy to mitigate the negative effects caused by environmental stress in recent years (Ahammed et al, 2015;Quintero-Calderoń et al, 2021;Akhtar et al, 2022). Fahad et al (2016) observed that the use of growth regulators (including brassinosteroids) helped rice plants to acclimatize to the heat stress condition, improving stomatal conductance, photosynthesis, and transpiration. Kosakivska et al (2022) also found that exogenous applications of cytokinins favored stomatal conductance, photosynthesis, and different photosynthetic pigments in different cereals subjected to heat stress.…”

Section: Introductionmentioning

confidence: 99%

Foliar cytokinins or brassinosteroids applications influence the rice plant acclimatization to combined heat stress

Pantoja-Benavides

Garcés-Varón²,

Restrepo-Díaz³

2022

Front. Plant Sci.

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The effect of different foliar sprays numbers of cytokinins – (CK) and brassinosteroids – (BR) on the physiological, biochemical, and panicle parameters of rice plants subjected to combined heat stress (high day/night temperatures) were studied in three different experiments. The treatments established for the first (E1) and second (E2) experiments were the following: i) absolute control, ii) stress control, iii) heat stress + one foliar spray of CK, iv) heat stress + two foliar sprays of CK, v) heat stress + three foliar sprays of CK, vi) heat stress + one foliar spray of BR, vii) heat stress + two foliar sprays of BR, or viii) heat stress + three foliar sprays of BR. For the third experiment (E3), the treatments were the following: i) absolute control, ii) stress control, iii) heat stress + three foliar applications of CK, iv) heat stress + three foliar applications of BR. Rice-stressed plants and sprayed with three foliar sprays of CK or BR had a better stomatal conductance in E1 and E2 compared to their heat-stressed control. The relative tolerance index suggests that three CK or BR applications helped to mitigate the combined heat stress in both experiments. The foliar CK or BR applications at the flowering and grain-filling stages in rice-stressed plants increased Fv/Fm ratio and panicle characteristics (number of filled spikelets and the percentage of panicle blanking in E3). In conclusion, foliar applications of BR or CK can be considered an agronomic strategy to help improve the negative effect of combined heat stress conditions on the physiological behavior of rice plants during different phenological stages.

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Suppressing photorespiration for the improvement in photosynthesis and crop yields: A review on the role of S-allantoin as a nitrogen source

Cited by 28 publications

References 81 publications

Photorespiration Regulates Carbon–Nitrogen Metabolism by Magnesium Chelatase D Subunit in Rice

Photorespiration Regulates Carbon–Nitrogen Metabolism by Magnesium Chelatase D Subunit in Rice

Allantoin Inhibits Compound 48/80-Induced Pseudoallergic Reactions In Vitro and In Vivo

Foliar cytokinins or brassinosteroids applications influence the rice plant acclimatization to combined heat stress

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