Up-regulation of antioxidant and glyoxalase systems by exogenous glycinebetaine and proline in mung bean confer tolerance to cadmium stress

Hossain, Mohammad Anwar; Hasanuzzaman, Mirza; Fujita, Masayuki

doi:10.1007/s12298-010-0028-4

Cited by 373 publications

(187 citation statements)

References 98 publications

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“…Under abiotic stress, the concentration of GSH, GB and SA would increase, which play important role in mediating plants responses to the stress [19,31,32]. Moreover, GSH, GB and SA pretreatment could significantly alleviate the Cd-induced growth inhibition and decrease the Cd content in plants [5,33,34]. So, the results suggested a practical potential for exogenous GSH, GB and SA application as an intervention strategy in alleviating Cd stress and reducing Cd translocation in rice plants.…”

Section: Resultsmentioning

confidence: 89%

Alleviating Effects of Exogenous Glutathione, Glycinebetaine, Brassinosteroids and Salicylic Acid on Cadmium Toxicity in Rice Seedlings (Oryza Sativa)

Cao¹,

Liu²

2012

Agrotechnol

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A hydroponic experiment was conducted to study the ameliorative effects of 24 h pretreatment with exogenous glutathione (GSH), glycinebetaine (GB), brassinosteroids (BRs) and salicylic acid (SA) upon 50 μM cadmium (Cd) stress to rice seedlings. The results showed that Cd caused a significant reduction in seedling height, chlorophyll content and biomass, the activity of POD in stems, and shoot Mn, shoot/root Zn and root Cu concentration, but improved SOD and POD activities in leaves with elevated MDA accumulation and Fe concentration. Pretreatment with 100 μM GSH, GB or SA greatly alleviated Cd-induced growth inhibition and suppressed Cd-induced MDA accumulation. Compared with Cd alone treatment, pretreatment of GSH, GB and SA markedly increased chlorophyll content; reduced shoot Cd concentration, and GSH also decrease root Cd content. GSH, GB and SA pretreatments counteracted the pattern of alterations in certain antioxidant enzymes induced by Cd, e.g. significantly suppressed Cd-induced increase of leaf SOD activity, GB and BRs also significantly decreased leaf POD activity; GSH significantly elevated the depressed stem POD and SOD activities; and GB elevated stem SOD activity. Compared with Cd alone, GSH pretreatment significantly relieved Cd-induced reduction in Cu or increase in Fe concentration in leaves; GB pretreatment decreased Cd-induced Fe enhancement; SA pretreatment markedly increased shoot Fe, but reduced Mn concentration. Although BRs pretreatment increased plant dry biomass with no effect on chlorophyll content and MDA accumulation, significantly increased Cd concentration both in shoots and roots.

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Section: Resultsmentioning

confidence: 89%

Alleviating Effects of Exogenous Glutathione, Glycinebetaine, Brassinosteroids and Salicylic Acid on Cadmium Toxicity in Rice Seedlings (Oryza Sativa)

Cao¹,

Liu²

2012

Agrotechnol

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“…The presence of Cd can result in excessive generation of reactive oxygen species (ROS) which could cause cell death due to oxidative stress such as membrane lipid peroxidation, enzyme inhibition, protein oxidation and damage to nucleic acids (GILL; TUTEJA, 2010;HOSSAIN et al, 2010;GILL et al, 2011a). To repair the Cd-induced inhibitory effects of ROS, plants employ a ROSdetoxifying antioxidant defense machinery which includes non-enzymatic (reduced glutathione (GSH), AsA, a -tocopherol and carotenoids) and enzymatic (SOD, CAT, APX, GR, MDHAR, DHAR, GPX and GST) antioxidants TUTEJA, 2010;HOSSAIN et al, 2010;GILL et al, 2011b;LIN et al, 2012;SUN et al, 2014;.…”

Section: Introductionmentioning

confidence: 99%

“…To repair the Cd-induced inhibitory effects of ROS, plants employ a ROSdetoxifying antioxidant defense machinery which includes non-enzymatic (reduced glutathione (GSH), AsA, a -tocopherol and carotenoids) and enzymatic (SOD, CAT, APX, GR, MDHAR, DHAR, GPX and GST) antioxidants TUTEJA, 2010;HOSSAIN et al, 2010;GILL et al, 2011b;LIN et al, 2012;SUN et al, 2014;. Moreover, GSH and oxidized glutathione (GSSG) are particularly important in scavenging ROS based on the GSH-GSSG reaction and the ascorbate-glutathione cycle (NOCTOR et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Exogenous glutathione reduces the damage induced by cadmium in cucumber seedlings

Sun¹,

Wang²,

He³

et al. 2016

Biosci. J.

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Cadmium (Cd) toxicity is a worldwide problem for crop production. The present work used hydroponic experiments to investigate the ameliorating effects and physiological mechanisms of glutathione (GSH) mitigation of Cd toxicity in cucumber seedlings. The results revealed that Cd was mainly accumulated in roots of cucumber, 100 µM GSH pretreatment in 50 µM Cd solution significantly recovered Cd-induced growth inhibition, improved photosynthetic and chlorophyll fluorescence performance. Moreover, external GSH obviously depressed hydroxyl free radical (·OH) and malondialdehyde accumulation, increased the total antioxidant capacity in cucumber exposed to Cd. Results indicated that pre-treatment of GSH can alleviate Cd toxicity by reducing Cd uptake and ROS accumulation, reduce the negative consequences of oxidative stress caused by Cd toxicity, moreover protect photosynthetic machinery from damaging, balance nutrients and antioxidants in cucumber.

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“…Cadmium accumulation alters mineral nutrients uptake, inhibits stomatal opening by interacting with the water balance of plant [8], disturbs the Calvin cycle enzymes, photosynthesis, carbohydrate metabolism [9,10], changes the antioxidant metabolism [6], and lowers the crop productivity [1]. As Cd is unable to participate directly in biological redox reactions, it induces oxidative stress via different indirect mechanisms.…”

Section: Introductionmentioning

confidence: 99%

Cadmium Toxicity in Plants and Role of Mineral Nutrients in Its Alleviation

Nazar¹,

Iqbal²,

Masood³

et al. 2012

AJPS

401

158

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Cadmium (Cd) is a toxic heavy metal that enters the environment through various anthropogenic sources, and inhibits plant growth and development. Cadmium toxicity may result from disturbance in plant metabolism as a consequence of disturbance in the uptake and translocation of mineral nutrients. Plant nutrients and Cd compete for the same transporters and, therefore, presence of Cd results in mineral nutrients deficiency. The optimization of mineral nutrients under Cd stress could reduce Cd toxicity by greater availability at the transport site resulting in reduced accumulation of Cd, and could also alleviate Cd-induced toxic effects by enhancing biochemical reactions and physiological processes in plants. In the present review the role of plant macro, micro and beneficial elements in alleviating Cd stress in crop plants is discussed.

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Up-regulation of antioxidant and glyoxalase systems by exogenous glycinebetaine and proline in mung bean confer tolerance to cadmium stress

Abstract: The present study investigates the possible mediatory role of exogenously applied glycinebetaine (betaine) and proline on reactive oxygen species (ROS) and methylglyoxal (MG) detoxification systems in mung bean seedlings subjected to cadmium (Cd) stress

Cited by 373 publications

References 98 publications

Alleviating Effects of Exogenous Glutathione, Glycinebetaine, Brassinosteroids and Salicylic Acid on Cadmium Toxicity in Rice Seedlings (Oryza Sativa)

Alleviating Effects of Exogenous Glutathione, Glycinebetaine, Brassinosteroids and Salicylic Acid on Cadmium Toxicity in Rice Seedlings (Oryza Sativa)

Exogenous glutathione reduces the damage induced by cadmium in cucumber seedlings

Cadmium Toxicity in Plants and Role of Mineral Nutrients in Its Alleviation

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