Cadmium-induced oxidative stress and response of the ascorbate–glutathione cycle in Bechmeria nivea (L.) Gaud

Liu, Yunguo; Wang, Xin; Zeng, Guangming; Qu, Dan; Gu, Jianlan; Zhou, Ming; Chai, Liyuan

doi:10.1016/j.chemosphere.2007.04.040

Cited by 129 publications

(91 citation statements)

References 35 publications

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“…Accumulation of α-tocopherol, ascorbic acid and carotenoids levels in cadmium treated pea seedlings as being compared with control indicate their protective role against oxidative damage. Similar to the present results, other investigations have shown increased in α-tocopherol and ascorbic acids levels for different plant species exposed to cadmium (Liu et al, 2007;Molina et al, 2008;Zengin and Munzuroglu, 2005). Calcium chloride application either alone or in combination with cadmium acetate increased carotenoids content as compared with those of control plants.…”

Section: Resultssupporting

confidence: 81%

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Alleviation of Cadmium Toxicity in Pisum sativum L. Seedlings by Calcium Chloride

El-Beltagi

Mohamed

2013

Not Bot Hort Agrobot Cluj

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The present investigation was carried out to study the role of calcium chloride in enhancing tolerance and reducing cadmium toxicity in pea seedlings. Some treatment with 1 and 5 mM CaCl 2 mitigated cadmium stress by increasing antioxidant enzyme activities: catalase (CAT), peroxidase (POD) and polyphenol oxidase (PPO), as well as by elevating contents of ascorbic acid (ASA), tocopherol and carotenoids. On the other hand, total carbohydrate and total soluble proteins decreased with increasing cadmium concentrations in comparison with control plants. However, total phenol, total free amino acids, proline and lipid peroxidation increased with increasing concentrations of cadmium acetate. Electrophoretic studies of protein revealed that cadmium treatments alone or in combination with calcium chloride were associated with the disappearance of some bands or appearance of new bands in pea seedlings. Electrophoretic studies of α-esterase, β-esterase and acid phosphatase isozymes showed wide variations in their intensities and densities.

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Section: Resultssupporting

confidence: 81%

“…Cadmium (Cd) is a highly toxic trace element that enters the environment mainly from industrial processes and phosphate fertilizers (Liu et al, 2007). It can reach high levels in agricultural soil and is easily accumulated in plants.…”

Section: Introductionmentioning

confidence: 99%

Alleviation of Cadmium Toxicity in Pisum sativum L. Seedlings by Calcium Chloride

El-Beltagi

Mohamed

2013

Not Bot Hort Agrobot Cluj

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“…In our opinion this can be explained by activation of the synthesis of AsA and a high speed of its utilization. Liu et al (2007) also reported an increase in the content of AsA in Cd-treated plants of Bechmeria nivea.…”

Section: Discussionmentioning

confidence: 93%

Metal uptake, antioxidant status and membrane potential in maize roots exposed to cadmium and nickel

et al. 2014

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Root growth of the seedlings of maize cultivars Premia and Blitz exposed to 2 µM cadmium (Cd), nickel (Ni) or both metals acting simultaneously (Cd + Ni) for 72 h was significantly reduced but not ceased. The effect was more pronounced in the seedlings of the cv. Blitz. The heavy metals (HMs) contents increased significantly in the roots. Simultaneous application of metals had an antagonistic effect on either Cd or Ni uptake in Premia but not in Blitz. In control roots the contents of ascorbic acid (AsA) and dehydroascorbic acid (DHA) were lower and gluthatione (GSH) content was higher in Premia than in Blitz. A decrease of AsA content was induced by all metal treatments in Premia but only by Cd + Ni in Blitz while an increase was induced by single metals in this cultivar. All metal treatments increased DHA contents in both cultivars. GSH content decreased significantly in Premia treated with Cd or Cd + Ni, and in Blitz treated with Ni. Unlike the contents of AsA, DHA and GSH, the increased metal concentrations in root cells did not affect the membrane potential (EM). The changes in antioxidant contents depended on both, maize genotypes and HMs treatments. Nevertheless, the results indicated a role of antioxidative system in minimizing the effects of oxidative stress and protecting cell membranes in both maize cultivars.

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“…The intensive use of high-phosphate fertilizers in agriculture has led to the increased accumulation of metal ions, especially cadmium, in the soil (Taylor, 1997). Cadmium is one of the most important metals in terms of food-chain contamination, because it is readily taken up by the cells of various plant species (Liu et al, 2007). In fact, at least 70% of the Cd intake by humans originates from plant foods (Wagner, 1993), leading to a potential threat to human health (Shah and Dubey, 1998).…”

Section: Introductionmentioning

confidence: 99%

Role of salicylic acid in regulation of cadmium toxicity in wheat ( Triticum aestivum L.)

Moussa

El-Gamal²

2009

Acta Agronomica Hungarica

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Treatment with CdCl 2 (0, 100, 400 and 1000 µM) resulted in the inhibition of root dry biomass and root elongation and to increased Cd accumulation in the roots. These treatments also decreased the relative water content, chlorophyll content, 14 CO fixation, phosphoenol pyruvate carboxylase and ribulose-1,5-bisphosphate carboxylase activity and abscisic acid (ABA) content, while increasing the malondialdehyde, hydrogen peroxide and free proline contents and causing changes in the chloroplast and root ultrastructure. Pretreatment of seeds with SA (500 µM) for 20 h resulted in the amelioration of these effects.

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Cadmium-induced oxidative stress and response of the ascorbate–glutathione cycle in Bechmeria nivea (L.) Gaud

Cited by 129 publications

References 35 publications

Alleviation of Cadmium Toxicity in Pisum sativum L. Seedlings by Calcium Chloride

Alleviation of Cadmium Toxicity in Pisum sativum L. Seedlings by Calcium Chloride

Metal uptake, antioxidant status and membrane potential in maize roots exposed to cadmium and nickel

Role of salicylic acid in regulation of cadmium toxicity in wheat ( Triticum aestivum L.)

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