Exogenous supplementation of melatonin alters representative organic acids and enzymes of respiratory cycle as well as sugar metabolism during arsenic stress in two contrasting indica rice cultivars

Samanta, Santanu; Singh, Ankur; Banerjee, Aditya; Roychoudhury, Aryadeep

doi:10.1016/j.jbiotec.2020.10.013

Cited by 54 publications

(24 citation statements)

References 101 publications

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“…The results of our study showed an increase in the organic acid contents of the examined plant parts with the exogenous application of melatonin. Our results are in accordance with the study conducted by Samanta et al [12], where melatonin efficiently restored the levels of various organic acids under arsenic stress. Similarly, Zhang et al [13] found that supplementing soybeans with 1 µM M Melatonin boosted malate and citrate exudation during aluminum (Al) stress.…”

Section: Root Organic Acid Contentsupporting

confidence: 93%

Role of Exogenous Melatonin, Hydrogen Sulfide and Nitric Oxide on Organic Acid Content of Eruca sativa L. under Salt Stress

Turan

Arjumend

Yıldırım

et al. 2021

int.jour.sci.res.mana.

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Salt stress affects agricultural output by influencing numerous internal metabolisms in plants and disrupting physiological and biochemical activities such as photosynthesis, translocation, respiration, and growth stimulants. The role of exogenous melatonin, hydrogen sulfide and nitric oxide application on the organic acid contents of rocket plants under salt stress was examined in this study. Different salt doses (0, 150 and 250 mM NaCl) and exogenous applications (0, 50 and100 µM) were made to rocket plants under the greenhouse conditions. Plants leaves and roots exhibited a decline in the organic acid contents under salinity stress. Application of the amendments, however, was found significant in mitigating the negative effect of salt stress. Melatonin and hydrogen sulfide treatments had a stronger anti-salt action in the leaves. On the other hand, nitrous oxide role was more obvious in the roots followed by melatonin. With this, exogenous applications to the plant mitigated the harmful effects of salt stress on organic acid contents depending on the dose.

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Section: Root Organic Acid Contentsupporting

confidence: 93%

Role of Exogenous Melatonin, Hydrogen Sulfide and Nitric Oxide on Organic Acid Content of Eruca sativa L. under Salt Stress

Turan

Arjumend

Yıldırım

et al. 2021

int.jour.sci.res.mana.

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show abstract

“…In contrast, the exogenous application of MEL improved the sugar levels ( Table 4 ), indicating the protective role of MEL in mitigating the toxic effects imposed by Cu. Several studies suggested that MEL increased the expression of genes involved in photosynthesis, carbohydrate metabolism, Krebs cycle, and other metabolic pathways in plants ( Samanta et al, 2020 ; Chen et al, 2021 ). Moreover, MEL application maintained nutrient homeostasis by restoring the root architecture and cell viability in Cu-stressed plants ( Altaf et al, 2020 ).…”

Section: Discussionmentioning

confidence: 99%

Perspective of Melatonin-Mediated Stress Resilience and Cu Remediation Efficiency of Brassica juncea in Cu-Contaminated Soils

2022

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The present study evaluated the influence of melatonin (MEL) on copper toxicity in terms of morphophysiological, microscopic, histochemical, and stress resilience responses in Brassica juncea. Different levels of Cu (0, 30, and 60 mg kg–1) were given in air-dried soil, and 25 days after sowing (DAS), plants were sprayed with 30, 40, or 50 μM of MEL. The results demonstrated that under Cu stress, a significant amount of Cu accumulated in plant tissues, particularly in roots than in upper ground tissues, thereby suppressing the overall growth as evidenced by decrease in tolerance index and photosynthesis and increase in oxidative stress biomarkers (reactive oxygen species, malondialdehyde, and electrolyte leakage content) and cell death. Interestingly, the follow-up treatment of MEL, mainly 40 μM, efficiently improved the physio-biochemical and growth parameters, sugar accumulation, and metabolism. The potential of MEL in modulating Cu stress is attributed to its involvement in enriching the level of nutrient and improving chloroplast and stomatal organization besides lowering oxidative stress via enhanced levels of antioxidants. MEL improved the Cu reclamation potential in plants by enhancing Cu uptake and its translocation to aerial tissues. Principal component analysis showed that most of the morphophysiological and growth attributes were positively linked with MEL and negatively related to Cu levels, whereas all the stress-enhancing attributes showed a strong relationship with excessive Cu levels in soils. The present study suggested that MEL has the potential to improve growth and photosynthesis resulting in improved stress resilience under Cu stress along with increased remediation capability of mustard for remediation of Cu-contaminated soils.

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“…The authors demonstrated that high doses of melatonin inhibit seedling growth by inducing the excessive accumulation of sucrose, hexose and starch, suppressing photosynthesis and sucrose phloem loading [ 76 ]. The role of melatonin in improving sucrose biosynthesis was also confirmed in pear, grape, and rice plants [ 70 , 79 , 80 ].…”

Section: Regulatory Action Of Melatonin On Carbohydrate Metabolismmentioning

confidence: 97%

Melatonin and Carbohydrate Metabolism in Plant Cells

Arnao

Hernández‐Ruíz

Caño

et al. 2021

Plants

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Melatonin, a multifunctional molecule that is present in all living organisms studied, is synthesized in plant cells in several intercellular organelles including in the chloroplasts and in mitochondria. In plants, melatonin has a relevant role as a modulatory agent which improves their tolerance response to biotic and abiotic stress. The role of melatonin in stress conditions on the primary metabolism of plant carbohydrates is reviewed in the present work. Thus, the modulatory actions of melatonin on the various biosynthetic and degradation pathways involving simple carbohydrates (mono- and disaccharides), polymers (starch), and derivatives (polyalcohols) in plants are evaluated. The possible applications of the use of melatonin in crop improvement and postharvest products are examined.

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Exogenous supplementation of melatonin alters representative organic acids and enzymes of respiratory cycle as well as sugar metabolism during arsenic stress in two contrasting indica rice cultivars

Cited by 54 publications

References 101 publications

Role of Exogenous Melatonin, Hydrogen Sulfide and Nitric Oxide on Organic Acid Content of Eruca sativa L. under Salt Stress

Role of Exogenous Melatonin, Hydrogen Sulfide and Nitric Oxide on Organic Acid Content of Eruca sativa L. under Salt Stress

Perspective of Melatonin-Mediated Stress Resilience and Cu Remediation Efficiency of Brassica juncea in Cu-Contaminated Soils

Melatonin and Carbohydrate Metabolism in Plant Cells

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