Role of polyamines in plants abiotic stress tolerance: Advances and future prospects

Bano, Chanda; Amist, Nimisha; Singh, Narsingh Bahadur

doi:10.1016/b978-0-12-818204-8.00021-7

Cited by 22 publications

(7 citation statements)

References 110 publications

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“…Polyamines (PAs) are nitrogen-containing compounds having a low molecular weight that are present in cellular compartments. The most common PAs found in plants are spermidine (Spd), putrescine (Put), and spermine (Spm), classified as plant growth substances ( Bano et al, 2020 ). Several other PAs such as cadaverine, homospermidine, canavalamine, and 1, 3-diamino propane are synthesized from amino acids.…”

Section: Major Osmoprotectants In Plantsmentioning

confidence: 99%

Salt stress resilience in plants mediated through osmolyte accumulation and its crosstalk mechanism with phytohormones

et al. 2022

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Salinity stress is one of the significant abiotic stresses that influence critical metabolic processes in the plant. Salinity stress limits plant growth and development by adversely affecting various physiological and biochemical processes. Enhanced generation of reactive oxygen species (ROS) induced via salinity stress subsequently alters macromolecules such as lipids, proteins, and nucleic acids, and thus constrains crop productivity. Due to which, a decreasing trend in cultivable land and a rising world population raises a question of global food security. In response to salt stress signals, plants adapt defensive mechanisms by orchestrating the synthesis, signaling, and regulation of various osmolytes and phytohormones. Under salinity stress, osmolytes have been investigated to stabilize the osmotic differences between the surrounding of cells and cytosol. They also help in the regulation of protein folding to facilitate protein functioning and stress signaling. Phytohormones play critical roles in eliciting a salinity stress adaptation response in plants. These responses enable the plants to acclimatize to adverse soil conditions. Phytohormones and osmolytes are helpful in minimizing salinity stress-related detrimental effects on plants. These phytohormones modulate the level of osmolytes through alteration in the gene expression pattern of key biosynthetic enzymes and antioxidative enzymes along with their role as signaling molecules. Thus, it becomes vital to understand the roles of these phytohormones on osmolyte accumulation and regulation to conclude the adaptive roles played by plants to avoid salinity stress.

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Section: Major Osmoprotectants In Plantsmentioning

confidence: 99%

Salt stress resilience in plants mediated through osmolyte accumulation and its crosstalk mechanism with phytohormones

et al. 2022

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“…Polyamines are low-molecular-weight nitrogen-containing molecules that are produced during metabolism in almost all types of cells ( Chen et al., 2019 ). They have strong capacity to bind DNA, RNA, and proteins, and the accumulation of polyamines, including spermine, Spd, and putrescine, has been reported to occur under stress conditions, which is associated with the upregulation of their biosynthetic pathway ( Hu et al., 2016 ; Bano et al., 2020 ). Polyamines play key roles in the alleviation of the oxidative damage to plants through their active role in upregulating the tolerance mechanisms aimed to neutralize toxic ROS ( Minocha et al., 2014 ).…”

Section: Introductionmentioning

confidence: 99%

Supplementation of nitric oxide and spermidine alleviates the nickel stress-induced damage to growth, chlorophyll metabolism, and photosynthesis by upregulating ascorbate–glutathione and glyoxalase cycle functioning in tomato

2022

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Experiments were conducted to evaluate the role of exogenously applied nitric oxide (NO; 50 µM) and spermidine (Spd; 100 µM) in alleviating the damaging effects of Ni (1 mM NiSO46H2O) toxicity on the growth, chlorophyll metabolism, photosynthesis, and mineral content in tomato. Ni treatment significantly reduced the plant height, dry mass, and the contents of glutamate 1-semialdehyde, δ-amino levulinic acid, prototoporphyrin IX, Mg–prototoporphyrin IX, total chlorophyll, and carotenoids; however, the application of NO and Spd alleviated the decline considerably. Supplementation of NO and Spd mitigated the Ni-induced decline in photosynthesis, gas exchange, and chlorophyll fluorescence parameters. Ni caused oxidative damage, while the application of NO, Spd, and NO+Spd significantly reduced the oxidative stress parameters under normal and Ni toxicity. The application of NO and Spd enhanced the function of the antioxidant system and upregulated the activity of glyoxalase enzymes, reflecting significant reduction of the oxidative effects and methylglyoxal accumulation. Tolerance against Ni was further strengthened by the accumulation of proline and glycine betaine due to NO and Spd application. The decrease in the uptake of essential mineral elements such as N, P, K, and Mg was alleviated by NO and Spd. Hence, individual and combined supplementation of NO and Spd effectively alleviates the damaging effects of Ni on tomato.

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“…In plants, diamine putriscene is derived either through multiple sequential process of L-arginine decarboxylation catalyzed by arginine decarboxylase (ADC) followed by two successive steps catalyzed by agmatine iminohydrolase (AIH) and N-carbamoylputrescine amidohydrolase (CPA), or by L-ornithine through catalysis of ornithine decarboxylase (ODC). Under unfavorable cues, PAs’ synthesis is induced by the arginine decarboxylase (ADC) pathway ( Slocum et al., 1984 ; Bouchereau et al., 1999 ; Bano et al., 2020 ). Moreover, arginine is first converted into N-carbamoylputrescine by a reaction catalyzed by arginine decarboxylase (ADC), and decarboxylated arginine (agmatine) is synthesized by plants ( Coleman et al., 2004 ; Pegg, 2016 ), then agmatine is converted into diamine putrescine (Put) via an intermediate N-carbamoylputrescine by N-carbamoylputrescine amidohydrolase (CPA), followed by agmatine deiminase (ADI)-catalyzed reactions.…”

Section: Biosynthesis Of Polyaminesmentioning

confidence: 99%

Versatile roles of polyamines in improving abiotic stress tolerance of plants

et al. 2022

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In recent years, extreme environmental cues such as abiotic stresses, including frequent droughts with irregular precipitation, salinity, metal contamination, and temperature fluctuations, have been escalating the damage to plants’ optimal productivity worldwide. Therefore, yield maintenance under extreme events needs improvement in multiple mechanisms that can minimize the influence of abiotic stresses. Polyamines (PAs) are pivotally necessary for a defensive purpose under adverse abiotic conditions, but their molecular interplay in this remains speculative. The PAs’ accretion is one of the most notable metabolic responses of plants under stress challenges. Recent studies reported the beneficial roles of PAs in plant development, including metabolic and physiological processes, unveiling their potential for inducing tolerance against adverse conditions. This review presents an overview of research about the most illustrious and remarkable achievements in strengthening plant tolerance to drought, salt, and temperature stresses by the exogenous application of PAs. The knowledge of underlying processes associated with stress tolerance and PA signaling pathways was also summarized, focusing on up-to-date evidence regarding the metabolic and physiological role of PAs with exogenous applications that protect plants under unfavorable climatic conditions. Conclusively, the literature proposes that PAs impart an imperative role in abiotic stress tolerance in plants. This implies potentially important feedback on PAs and plants’ stress tolerance under unfavorable cues.

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Role of polyamines in plants abiotic stress tolerance: Advances and future prospects

Cited by 22 publications

References 110 publications

Salt stress resilience in plants mediated through osmolyte accumulation and its crosstalk mechanism with phytohormones

Salt stress resilience in plants mediated through osmolyte accumulation and its crosstalk mechanism with phytohormones

Supplementation of nitric oxide and spermidine alleviates the nickel stress-induced damage to growth, chlorophyll metabolism, and photosynthesis by upregulating ascorbate–glutathione and glyoxalase cycle functioning in tomato

Versatile roles of polyamines in improving abiotic stress tolerance of plants

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