How a multimeric macromolecule is affected by divalent salts? Experimental and simulation study

Janati-Fard, Fatemeh; Housaindokht, Mohammad Reza; Monhemi, Hassan; Nakhaeipour, Ali

doi:10.1016/j.ijbiomac.2017.08.018

Cited by 7 publications

(2 citation statements)

References 46 publications

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“…In addition, the excessive production of reactive oxygen species might have led to enzyme inactivation, or interference with the synthesis of the enzyme or its subunits might have also contributed to this phenomenon. This result could be due to enzyme inactivation caused by excessive production of ROS or interference with the synthesis of the enzyme or its subunits [ 38 , 39 ]. For example, under the same salt stress conditions (150 mM NaCl), cotton seedlings of ‘Nongda Cotton 601’ showed a decrease in POD [ 8 ].…”

Section: Discussionmentioning

confidence: 99%

Exogenous γ-Aminobutyric Acid Can Improve Seed Germination and Seedling Growth of Two Cotton Cultivars under Salt Stress

Dong,

Huang,

et al. 2023

Plants

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Excessive salt content in soil has adverse effects on cotton production, especially during the germination and seedling stages. γ-aminobutyric acid (GABA) is an important active substance that is expected to improve the resistance of plants to abiotic stresses. This study focused on two cotton cultivars (Gossypium hirsutum L.: Tahe 2 and Xinluzhong 62) and investigated the impact of exogenous GABA (0, 1, 2, 3, and 4 mM) on seed germination, seedling growth, and related morphological, physiological, and biochemical indicators under salt stress (150 mM NaCl). The results showed that salt stress significantly reduced the germination rate and germination index of cotton seeds (decreased by 20.34% and 32.14% for Tahe 2 and Xinluzhong 62, respectively), leading to decreased seedling height and biomass and causing leaf yellowing. Salt stress induced osmotic stress in seedlings, resulting in ion imbalance (marked reduction in K+/Na+ ratio) and oxidative damage. Under salt stress conditions, exogenous GABA increased the germination rate (increased by 10.64~23.40% and 2.63~31.58% for Tahe 2 and Xinluzhong 62, respectively) and germination index of cotton seeds, as well as plant height and biomass. GABA treatment improved leaf yellowing. Exogenous GABA treatment increased the content of proline and soluble sugars, with varying effects on betaine. Exogenous GABA treatment reduced the Na+ content in seedlings, increased the K+ content, and increased the K+/Na+ ratio (increased by 20.44~28.08% and 29.54~76.33% for Tahe 2 and Xinluzhong 62, respectively). Exogenous GABA treatment enhanced the activities of superoxide dismutase and peroxidase, and reduced the accumulation of hydrogen peroxide and malondialdehyde, but had a negative impact on catalase activity. In conclusion, exogenous GABA effectively improved cotton seed germination. By regulating osmoprotectant levels, maintaining ion homeostasis, and alleviating oxidative stress, GABA mitigated the adverse effects of salt stress on cotton seedling growth.

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Section: Discussionmentioning

confidence: 99%

Exogenous γ-Aminobutyric Acid Can Improve Seed Germination and Seedling Growth of Two Cotton Cultivars under Salt Stress

Dong,

Huang,

et al. 2023

Plants

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“…To maintain periodic boundary conditions, during MD simulation process using cubic cells, the minimum distance between protein atoms and cell wall was set to 1 Å. The design of box size followed the standard that the distance between protein atoms and wall was greater than 1 nm to maintain periodic boundary conditions, 23 and a simple point charge solvent model (SPC) 216 was applied to solvate the system (the type of solvent is water). Generally, the simulation system was balanced by adding counterions such as Cl − or Na + to achieve a physiologically neutral state, so 171 Na + and 168 Cl − were added in current simulation.…”

Section: Methodsmentioning

confidence: 99%

Unveiling the inhibitory mechanism of aureusidin targeting xanthine oxidase by multi-spectroscopic methods and molecular simulations

Yang

et al. 2023

RSC Adv.

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The influence of two imidazolium-based ionic liquids on the structure and activity of glucose oxidase: Experimental and theoretical studies

Janati-Fard

Housaindokht

Monhemi

et al. 2018

International Journal of Biological Macromolecules

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How a multimeric macromolecule is affected by divalent salts? Experimental and simulation study

Cited by 7 publications

References 46 publications

Exogenous γ-Aminobutyric Acid Can Improve Seed Germination and Seedling Growth of Two Cotton Cultivars under Salt Stress

Exogenous γ-Aminobutyric Acid Can Improve Seed Germination and Seedling Growth of Two Cotton Cultivars under Salt Stress

Unveiling the inhibitory mechanism of aureusidin targeting xanthine oxidase by multi-spectroscopic methods and molecular simulations

The influence of two imidazolium-based ionic liquids on the structure and activity of glucose oxidase: Experimental and theoretical studies

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