Effect of Copper on Antioxidant Enzyme Activities and Mineral Nutrition of White Lupin Plants Grown in Nutrient Solution

Mourato, Miguel; Martins, L. L.; Cuypers, Ann

doi:10.1080/01904160903242375

Cited by 11 publications

(7 citation statements)

References 41 publications

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“…In order to alleviate the damage initiated by activated oxygen, the complex antioxidant defense systems in plants regulate the contents or induce the activities of antioxidants. The activities of antioxidant enzymes usually increase at a certain level of heavy metals (Lyubenova et al 2009;Mourato et al 2009). In this study, H. reticulatum showed relatively higher SOD activities than C. globularis under Pb treatment.…”

Section: Discussionmentioning

confidence: 99%

“…The submerged species, C. globularis, postponed Pb deposition more efficiently than the floating species, H. reticulatum at the beginning of the experiment, but this Table 1 Relative growth rates (RGR, %) of the two macroalgae exposed to different Pb levels after 5 and 15 days effect became weaker with prolonged exposure. Lead levels in soils are variable, depending on soil type and characteristics (i.e., acidity, organic matter content, texture, cationic exchange capacity, and redox potential; Mourato et al 2009). In this study, a large portion of macroalgae died at high levels of Pb (160 mg L −1 ) and the detritus containing Pb sank to the soil surface to become a component of the sediment.…”

Section: Discussionmentioning

confidence: 99%

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Response of Chara globularis and Hydrodictyon reticulatum to lead pollution: their survival, bioaccumulation, and defense

Gao

Yan

2011

J Appl Phycol

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The responses of the pioneer submerged macroalga (Chara globularis) and the rapidly spreading floating macroalga (Hydrodictyon reticulatum) to high levels of lead (40, 80, and 160 mg L −1 ) at pH 7.14 were studied. Growth rate, Pb bioaccumulation, and physiological response of plants were measured after 5 and 15 days exposure. Both macroalgae efficiently postponed the deposition process of Pb from water column to soil. The Pb bioaccumulation in C. globularis was concentration-and time-dependent increase during the experiment and the maximum bioaccumulation activity was about 3,650 mg Pb kg −1 DW in 160 mg L −1 Pb at pH 7.14 after 15 days, whereas H. reticulatum showed saturable bioaccumulation in 5 days and the maximum was approximately 4,000 mg Pb kg −1 DW; in addition, H. reticulatum exhibited higher tolerance to Pb pollution than C. globularis. The results also showed that the antioxidant defense systems of both tested macroalgae were overwhelmed under high Pb levels with superoxide radical and malondiadehyde levels increasing significantly. The antioxidant enzymes, superoxide dismutase, catalase, and guaiacol peroxidase activities were inhibited severely increasing Pb levels and exposure time.These results indicate that the pioneer species C. globularis would have difficulty growing in a habitat polluted by Pb >40 mg L −1 and the rapidly spreading H. reticulatum may not grow in an environment polluted by >80 mg L −1 Pb. Because Pb levels in most water bodies are lower than 40 mg L −1 , both C. globularis and H. reticulatum can be considered for phytoremediation of Pb pollution.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Response of Chara globularis and Hydrodictyon reticulatum to lead pollution: their survival, bioaccumulation, and defense

Gao

Yan

2011

J Appl Phycol

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“…[1] It is thus extremely important to study the interaction between heavy metals and plants, as it affects crop production and plant growth. [2,3] However, this is also true from an ecological interest point of view.…”

Section: Introductionmentioning

confidence: 88%

Variation in trace element mobility and nitrogen metabolism ofVerbascum olympicum Boiss. under copper stress

Guleryuz

Erdemir

Arslan

et al. 2015

Chemistry and Ecology

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The aim of this study was to evaluate the effects of copper (Cu) stress on accumulation and transport of trace elements, nitrogen assimilation, and growth parameters of Verbascum olympicum. Eight-week-old seedlings were grown in Hoagland's solution and exposed to 0, 50, 250, or 500 µM CuSO 4 for seven days in laboratory conditions. Bioaccumulation of trace elements (boron, bismuth, cobalt, Cu, iron, lithium, manganese, molybdenum, nickel, lead, zinc) in the roots and leaves was determined by inductively coupled plasma-mass spectrometry after one, three, and seven days. Chlorophyll content, nitrate reductase, and glutamine synthetase activities, soluble protein content, and biomass were determined. Copper accumulated in the roots and leaves (up to 19609.8 and 256.2 mg kg −1 dry weight, respectively). Other trace elements accumulated to higher levels in the roots of Cu-treated plants compared with those of control plants. High Cu concentrations decreased nitrogen-assimilatory enzyme activities. Compared with control plants, those treated with high Cu concentrations showed lower chlorophyll contents, total protein contents, and biomass. Nitrogen assimilation and growth parameters of V. olympicum were negatively affected by Cu treatment but mineral nutrition was not severely disrupted. The results support the suitability of V. olympicum as a candidate for phytoremediation of Cu-contaminated soils.

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“…These ROS may scavenge due to the production of antioxidant enzymes in the plant cell that includes enzymatic components such as catalase (CAT), superoxide dismutase (SOD), ascorbate peroxidase (APX), peroxidase (POD), glutathione reductase (GR) as well as nonenzymatic molecular antioxidants such as ascorbic acid (AsA). ROS reactive oxygen species under Cu stress compared to control (Mourato et al 2009). Moreover, rapid increase in CAT activity was evident in tomato exposed to Cu (Mediouni et al 2008).…”

Section: Effect On Ros Generation and Antioxidant Enzymesmentioning

confidence: 97%

The effect of excess copper on growth and physiology of important food crops: a review

Adrees

Ali

Rizwan

et al. 2015

Environ Sci Pollut Res

646

279

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In recent years, copper (Cu) pollution in agricultural soils, due to arbitrary use of pesticides, fungicides, industrial effluent and wastewater irrigation, present a major concern for sustainable agrifood production especially in developing countries. The world's major food requirement is fulfilled through agricultural food crops. The Cu-induced losses in growth and yield of food crops probably exceeds from all other causes of food safety and security threats. Here, we review the adverse effects of Cu excess on growth and yield of essential food crops. Numerous studies reported the Cu-induced growth inhibition, oxidative damage and antioxidant response in agricultural food crops such as wheat, rice, maize, sunflower and cucumber. This article also describes the toxic levels of Cu in crops that decreased plant growth and yield due to alterations in mineral nutrition, photosynthesis, enzyme activities and decrease in chlorophyll biosynthesis. The response of various crops to elevated Cu concentrations varies depending upon nature of crop and cultivars used. This review could be helpful to understand the Cu toxicity and the mechanism of its tolerance in food crops. We recommend that Cu-tolerant crops should be grown on Cu-contaminated soils in order to ameliorate the toxic effects for sustainable farming systems and to meet the food demands of the intensively increasing population.

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Effect of Copper on Antioxidant Enzyme Activities and Mineral Nutrition of White Lupin Plants Grown in Nutrient Solution

Cited by 11 publications

References 41 publications

Response of Chara globularis and Hydrodictyon reticulatum to lead pollution: their survival, bioaccumulation, and defense

Response of Chara globularis and Hydrodictyon reticulatum to lead pollution: their survival, bioaccumulation, and defense

Variation in trace element mobility and nitrogen metabolism ofVerbascum olympicum Boiss. under copper stress

The effect of excess copper on growth and physiology of important food crops: a review

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