Copper Accumulation and Tolerance in Chrysanthemum coronarium L. and Sorghum sudanense L.

Wei, Lan; Luo, Chunling; Li, Xiangdong; Shen, Zhenguo

doi:10.1007/s00244-007-9114-1

Cited by 59 publications

(19 citation statements)

References 34 publications

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“…A significant component of copper toxicity is oxidative stress, catalyzing the generation of harmful reactive oxygen species (ROS) such as superoxide radicals (O 2 -· ·), hydrogen peroxide (H 2 O 2 ) and hydroxyl radical (OH· ·), which can damage biological molecules and membranes by inducing lipid peroxidation (Weckx and Clijsters, 1996;Hall, 2002). To obviate copper toxicity, plants have developed various strategies employing secretion of organic acid, retention of copper in roots, and immobilization in the cell wall (Bradley et al, 1981;Hu et al, 2007;Wei et al, 2008). Plants have also evolved protective enzymatic mechanisms to scavenge ROS and alleviate their deleterious effects, such as peroxidases (POD), superoxide dismutase (SOD) and catalase (CAT) (Scandalios, 1993;Teisseire and Guy, 2000).…”

Section: Introductionmentioning

confidence: 99%

“…Many reports on Cu 2+ stress have concentrated mainly on growth inhibition (including root inhibition), Cu accumulation in the organism, and antioxidant enzymes of plant leaves (Maksymiec and Krupa, 2007;Khatun et al, 2008;Wei et al, 2008), but there are far fewer on the responses of root antioxidant enzymes to copper stress (Panda, 2008;Kováèik et al, 2009;Madejón et al, 2009). L. perenne and F. arundinacea are common turfgrasses in north China.…”

Section: Introductionmentioning

confidence: 99%

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Responses of Root Growth and Protective Enzymes to Copper Stress in Turfgrass

Zhao¹,

Liu²,

Qi³

et al. 2010

Acta Biologica Cracoviensia Series Botanica

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Root growth and protective enzymes of Festuca arundinacea L. and Lolium perenne L. under Cu stress were investigated in a hydroponic experiment. Cu stress significantly inhibited root growth (root elongation and dry biomass) of both turfgrasses. Malondialdehyde (MDA) content in roots of both turfgrasses markedly increased under copper stress. In F. arundinacea root, superoxide dismutase (SOD) activity increased greatly with increasing Cu concentration; peroxidase (POD) activity increased at low Cu level and decreased at high Cu level. Increased MDA content indicated the formation of free radicals under Cu stress, while increased SOD activity pointed to the operation of a scavenging mechanism. In roots of L. perenne, however, SOD and POD were not activated by copper. These results demonstrate that turfgrass cultivars clearly differ in tolerance to Cu stress, and that the tolerance depends largely on the enhanced activity of its antioxidant system. K Ke ey y w wo or rd ds s: : Copper stress, Festuca arundinacea L., Lolium perenne L., MDA, antioxidant enzyme.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Responses of Root Growth and Protective Enzymes to Copper Stress in Turfgrass

Zhao¹,

Liu²,

Qi³

et al. 2010

Acta Biologica Cracoviensia Series Botanica

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“…However, copper can cause toxic effects to organisms at high concentrations [1]. Cu pollution has become a significant environment issue at present due to human activities, such as mining, smelting, industrial waste disposal, sewage sludge application to agricultural soils, and the use of fertilizers and pesticides [2], [3]. Researchers are trying their best to find out appropriate technologies to remediate copper-contaminated soils.…”

Section: Introductionmentioning

confidence: 99%

Effects of Arbuscular Mycorrhizal Fungi Inoculation on a Wild Type Sorrel (Rumex acetosa) under Copper Stress

Wang¹,

Li²,

Guo³

et al. 2016

IJESD

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Abstract-Phytoremediation is becoming a potential method for remediation of heavy metal contaminated soil. The aim of this study is to discuss whether the sorrel absorbs copper (Cu) from the soil, and whether arbuscular mycorrhizal fungi (AMF) inoculation enhances its capacity of Cu uptake. The experiment was conducted in plastic pots with three treatments: control, 600 mg/kg Cu, and 600 mg/kg Cu plus 10 g AMF. The results showed that the sorrel accumulated Cu when planted in Cu contaminated soil. Furthermore, the more uptake Cu, the more nitrogen (N) and phosphorus (P) was absorbed. When the sorrel was under copper stress, its peroxidase (POD) and catalase (CAT) activities increased, while superoxide dismutase (SOD) activity decreased compared with the control. Chlorophyll (Chl) content decreased under copper stress, but no significant differences were observed in malondialdehyde (MDA) content. Although Cu stress inhibited the activity of soil urease, it didn't affect activities of soil cellulose, soil sucrase, and soil catalase. It also showed that AMF inoculation promoted the growth of sorrel, enhanced the capacity of Cu, N, P, and potassium (K) uptake, but it didn't affect MDA and Chl content, POD activity , and CAT activities of sorrel. However, SOD activity was inhibited a little bit. The results also showed that AMF enhanced the activity of soil urease, inhibited activities of soil cellulose and soil sucrase. But it didn't influence the activity of soil CAT. It concluded that this sorrel was a Cu accumulating plant and AMF inoculation improved its capacity of Cu uptake.

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“…Accumulation of Cu in agricultural soils resulting from continuous use of Cu fungicides, recycled water and sludge application has been reported in many countries and is becoming increasingly hazardous (Merry et al 1983;Wei et al 2008). Although Cu is an essential micronutrient for plant development when provided in trace quantities, one of the major consequences of excessive accumulation of Cu in soils is its toxicity to plants and microbial communities (Jänsch et al 2007).…”

Section: Introductionmentioning

confidence: 99%

Phytoavailability of copper in the presence of recycled water sources

2011

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Background and aims Recycled water irrigation provides a reliable source of water supply to farmers and also adds valuable plant nutrients and organic matter to the soil. However, untreated or partially treated wastewater can introduce inorganic and organic contaminants, including heavy metals, into agricultural lands. The objective of this study was to evaluate the transformation of copper (Cu) in soils treated with recycled water sources and its subsequent uptake by plants.Methods The impact of recycled water sources [farm dairy effluent (FDE) and piggery effluent (PE)] on the transformation and phytoavailability of Cu was examined using two soils (Gawler and Adelaide Hills) which varied in their pH and organic matter content. The soils were spiked with varying levels of Cu (0-500 mg kg-1) in the presence of recycled water sources and MQ-water. The transformation of Cu was examined by monitoring the CaCl2 extractable free Cu2+ and pore water metal concentrations. The phytoavailability of Cu in the presence of recycled water sources was analyzed using Indian mustard (Brassica juncea var. Varuna) plants.Results The recycled water sources significantly reduced the CaCl2 extractable and pore water free Cu2+ concentrations in soils, indicating a decrease in the labile fraction of Cu. The results indicated that increasing the level of Cu applied through recycled water sources and Milli-Q (MQ) water elevated Cu concentration in plants. However, at the same level of Cu application, plants took up less Cu from recycled water-amended soils than from MQ-water-amended soils. The effect was more pronounced in PE treated soils, with a reduction in Cu concentration in the plant tissues by 74.8% and 54% in GL soil, and 57.2% and 49% in AH soil at 100 and 500 mg kg-1 Cu levels respectively, compared to the Cuspiked soils in the presence of MQ-water. ConclusionsThe results clearly showed that the presence of organic carbon in the recycled water was proved to be effective in reducing Cu phytotoxicity at high levels of Cu addition, indicating that the metalorganic complexes decreased the bioavailability of Cu to plants.

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Copper Accumulation and Tolerance in Chrysanthemum coronarium L. and Sorghum sudanense L.

Cited by 59 publications

References 34 publications

Responses of Root Growth and Protective Enzymes to Copper Stress in Turfgrass

Responses of Root Growth and Protective Enzymes to Copper Stress in Turfgrass

Effects of Arbuscular Mycorrhizal Fungi Inoculation on a Wild Type Sorrel (Rumex acetosa) under Copper Stress

Phytoavailability of copper in the presence of recycled water sources

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