Lipoic acid mitigates oxidative stress and recovers metabolic distortions in salt‐stressed wheat seedlings by modulating ion homeostasis, the osmo‐regulator level and antioxidant system

Gorcek, Zeynep; Erdal, Serkan

doi:10.1002/jsfa.7020

Cited by 32 publications

(31 citation statements)

References 52 publications

(59 reference statements)

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“…In addition, our findings show that the improvement in water status following the exogenous application of ALA may be the result of the alleviation of the detrimental effects of osmotic stress. Similar to our findings, Görcek and Erdal [9] reported that exogenous ALA treatment mitigated the salt-induced decrease in water status and, hence, contributed by increasing the leaf surface area. In addition, the authors indicated that enhancement of the water status and leaf surface area due to foliar application of ALA was due to its modulating role in ion homeostasis, osmotic regulation and the antioxidant system.…”

Section: Discussionsupporting

confidence: 92%

“…The reduction in H 2 O 2 content after ALA application may be due to its ability to scavenge ROS, as antioxidant enzymes. This correlates with the findings of Gorcek and Erdal [9] who observed that ALA significantly reduced H 2 O 2 and superoxide contents and contributed to the response to oxidative damage and metabolic distortions in salt-stressed wheat seedlings. Likewise, in another study, it was shown that ALA can have protective and antimutagenic effects against oxidants (particularly H 2 O 2 ) in yeast cells via its antioxidant activity [28].…”

Section: Discussionsupporting

confidence: 91%

“…Furthermore, it affects specific proteins and enhances salt-stress tolerance [8]. In addition, it may mitigate oxidative stress by modulating ion homeostasis and the antioxidant system in salt-stressed wheat seedlings [9].…”

Section: Introductionmentioning

confidence: 99%

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Alpha lipoic acid treatment induces the antioxidant system and ameliorates lipid peroxidation in maize seedlings under osmotic stress

Terzi

Güler

Guven

et al. 2018

Arch biol sci (Beogr)

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Plants are markedly affected by drought stress caused by fluctuations in global climate, reduction in rainfall and a decrease in soil fertility. Therefore, some mechanistic strategies to cope with adverse effects of drought stress are needed. Alpha lipoic acid (ALA), a potent antioxidant molecule, is known to function in abiotic stress tolerance. In the current study, we investigated the ALA-stimulated physiological role in tolerance to osmotic stress induced by polyethylene glycol in two maize (Zea mays L.) cultivars (cv. Helen and cv. Akpinar). Application of ALA increased the leaf water potential of maize cultivars under stressful and stress-free conditions but decreased lipid peroxidation and the hydrogen peroxide (H 2 O 2) content. Additionally, enhanced activity of the antioxidant defense system was observed following ALA application. Exogenous ALA elevated the activities of enzymatic antioxidants such as superoxide dismutase (SOD), catalase (CAT), guaiacol peroxidase (GPX), glutathione reductase (GR) and monodehydroascorbate reductase (MDHAR) under osmotic stress as compared to seedlings not exposed to ALA. Conversely, ascorbate peroxidase (APX) activity was decreased by ALA application in both cultivars. Higher GR and MDHAR activities of both cultivars were simultaneously observed in ALA treatments under osmotic stress. Taken together, the data indicated that exogenous ALA may function in arranging resilience against osmotic stress by reducing oxidative damage through induction of the antioxidant machinery in maize cultivars.

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Section: Discussionsupporting

confidence: 92%

Section: Discussionsupporting

confidence: 91%

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Alpha lipoic acid treatment induces the antioxidant system and ameliorates lipid peroxidation in maize seedlings under osmotic stress

Terzi

Güler

Guven

et al. 2018

Arch biol sci (Beogr)

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“…Some data showed a high level of free proline accumulation in the salt-tolerant cultivar than in the salt-sensitive cultivar under salt stress (Misra and Gupta, 2005; Khan et al, 2009). By contrast, some studies demonstrated that the salt-sensitive cultivar accumulates more proline than salt-tolerant cultivar under salt stress (Lutts et al, 1999; Claussen, 2005).…”

Section: Discussionmentioning

confidence: 99%

Ability to Remove Na+ and Retain K+ Correlates with Salt Tolerance in Two Maize Inbred Lines Seedlings

Gao

et al. 2016

Front. Plant Sci.

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Maize is moderately sensitive to salt stress; therefore, soil salinity is a serious threat to its production worldwide. Here, excellent salt-tolerant maize inbred line TL1317 and extremely salt-sensitive maize inbred line SL1303 were screened to understand the maize response to salt stress and its tolerance mechanisms. Relative water content, membrane stability index, stomatal conductance, chlorophyll content, maximum photochemical efficiency, photochemical efficiency, shoot and root fresh/dry weight, and proline and water soluble sugar content analyses were used to identify that the physiological effects of osmotic stress of salt stress were obvious and manifested at about 3 days after salt stress in maize. Moreover, the ion concentration of two maize inbred lines revealed that the salt-tolerant maize inbred line could maintain low Na+ concentration by accumulating Na+ in old leaves and gradually shedding them to exclude excessive Na+. Furthermore, the K+ uptake and retention abilities of roots were important in maintaining K+ homeostasis for salt tolerance in maize. RNA-seq and qPCR results revealed some Na+/H+ antiporter genes and Ca2+ transport genes were up-regulated faster and higher in TL1317 than those in SL1303. Some K+ transport genes were down-regulated in SL1303 but up-regulated in TL1317. RNA-seq results, along with the phenotype and physiological results, suggested that the salt-tolerant maize inbred line TL1317 possesses more rapidly and effectively responses to remove toxic Na+ ions and maintain K+ under salt stress than the salt-sensitive maize inbred line SL1303. This response should facilitate cell homoeostasis under salt stress and result in salt tolerance in TL1317.

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“…Chlorophyll content was measured by the spectrophotometric method . Absorbance was measured at wavelengths of 645 and 663 nm, and 80% acetone aqueous solution was used as a reference.…”

Section: Methodsmentioning

confidence: 99%

Preparation and mechanism analysis of an environment‐friendly maize seed coating agent

Zeng

Zhao

et al. 2017

J Sci Food Agric

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Lipoic acid mitigates oxidative stress and recovers metabolic distortions in salt‐stressed wheat seedlings by modulating ion homeostasis, the osmo‐regulator level and antioxidant system

Abstract: LA reduced salinity-induced oxidative damage and thus contributed to the growth and development of plants in saline soils by modulating ion homeostasis between plant and soil as well as in osmo-regulator content and antioxidant system.

Cited by 32 publications

References 52 publications

Alpha lipoic acid treatment induces the antioxidant system and ameliorates lipid peroxidation in maize seedlings under osmotic stress

Alpha lipoic acid treatment induces the antioxidant system and ameliorates lipid peroxidation in maize seedlings under osmotic stress

Ability to Remove Na+ and Retain K+ Correlates with Salt Tolerance in Two Maize Inbred Lines Seedlings

Preparation and mechanism analysis of an environment‐friendly maize seed coating agent

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