Translocation of metals and its effects in the tomato plants grown on various amendments of tannery waste: evidence for involvement of antioxidants

Singh, Surinder; Sinha, Sarita; Saxena, Ruchi; Pandey, Kanti Bhooshan; Bhatt, Kavita

doi:10.1016/j.chemosphere.2004.04.041

Cited by 95 publications

(48 citation statements)

References 31 publications

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“…Oxidative stress can induce lipid peroxidation, the activity of certain enzymes and cause membrane damage and cellular toxicity (Singh et al 2004). When under oxidative stress, plants can produce or stimulate antioxidative enzymes, like catalase (CAT), peroxidase (POD), and superoxide dismutase (SOD), and non-enzymatic constituents that remove and neutralize the reactive oxygen species (Shah et al 2001).…”

Section: Introductionmentioning

confidence: 99%

Trace elements and activity of antioxidative enzymes in Cistus ladanifer L. growing on an abandoned mine area

Santos

Abreu²,

Nabais

et al. 2009

Ecotoxicology

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The Mediterranean shrub Cistus ladanifer grows naturally in São Domingos (Portugal), an abandoned copper mine. High levels of trace elements in plants can generate oxidative stress increasing the activity of antioxidant enzymes. The aim of this work was to evaluate and compare As, Cu, Pb and Zn concentrations and the activity of the soluble and cell wall ionically bounded forms of the enzymes catalase, peroxidase and superoxide dismutase in leaves of C. ladanifer, collected in spring and summer, growing on São Domingos mine and on a non-contaminated area (Pomarão). São Domingos soils showed high total concentrations of As (2.6 g kg(-1)) and Pb (7.3 g kg(-1)) however the available fraction represented less than 1.5% of the total. C. ladanifer population from mine showed tolerance to Pb and Zn, which attain in leaves concentrations considered toxic for plants. The enzymatic activity of catalase, peroxidise and superoxide dismutase varied with plant populations and seasons, although with no particular trend, being specific to each trace element and enzyme cell localization. Catalase activity was evenly distributed between the soluble and ionically bounded forms, whereas the ionically bounded form of peroxidase predominated relatively to total activity, and the opposite was observed for superoxide dismutase. Spring and summer leaves from the two areas presented enzymatic activities in both fractions except to peroxidase soluble activities in leaves collected in summer. C. ladanifer enzymatic activity seems to be related with the co-existence of different stress factors (trace elements concentration, temperature, UV radiation and drought). The survival and growth of this species on contaminated mining soils is due to the presence of effective antioxidant enzyme-based defence systems.

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Section: Introductionmentioning

confidence: 99%

Trace elements and activity of antioxidative enzymes in Cistus ladanifer L. growing on an abandoned mine area

Santos

Abreu²,

Nabais

et al. 2009

Ecotoxicology

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“…Several heavy metals (e.g., Fe, Mn, Cu, Zn, Ni, and Mo) are required in traces as micronutrients by plants [1][2][3], while others (e.g., Cd, Cr, Hg, and Pb) are known as pollutants [4][5][6][7][8][9][10][11][12]. Major functions of heavy metals in plant metabolism are based on their involvement in oxidation/reduction processes [1,2,13].…”

Section: Heavy Metals: Micronutrients or Pollutants?mentioning

confidence: 99%

Heavy Metals in Crop Plants: Transport and Redistribution Processes on the Whole Plant Level

2015

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Abstract:Copper, zinc, manganese, iron, nickel and molybdenum are essential micronutrients for plants. However, when present in excess they may damage the plant or decrease the quality of harvested plant products. Some other heavy metals such as cadmium, lead or mercury are not needed by plants and represent pollutants. The uptake into the roots, the loading into the xylem, the acropetal transport to the shoot with the transpiration stream and the further redistribution in the phloem are crucial for the distribution in aerial plant parts. This review is focused on long-distance transport of heavy metals via xylem and phloem and on interactions between the two transport systems. Phloem transport is the basis for the redistribution within the shoot and for the accumulation in fruits and seeds. Solutes may be transferred from the xylem to the phloem (e.g., in the small bundles in stems of cereals, in minor leaf veins). Nickel is highly phloem-mobile and directed to expanding plant parts. Zinc and to a lesser degree also cadmium are also mobile in the phloem and accumulate in meristems (root tips, shoot apex, axillary buds). Iron and manganese are characterized by poor phloem mobility and are retained in older leaves.

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“…Pollution of the biosphere with toxic metals has accelerated dramatically since the beginning of the industrial revolution [2]. Heavy metal pollution is mainly the result of human activities such as agriculture, mining, construction and industrial processes [3][4]. According toKabata and Pendias 5 , improper waste disposal activities and overuse of pesticides were among the most significant sources of heavy metal pollution in the environment.…”

Section: Introductionmentioning

confidence: 99%

The concentration and distribution of selected heavy metals (Pb, Cd, Cu and Zn) in soils collected from the rice fields of MADA in Kedah, Malaysia

Alrawiq

Khairiah²,

Latif³

et al. 2013

AIP Conference Proceedings

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Abstract. The present study was carried out to determine the concentration and distribution status of some heavy metals (Pb, Cd, Cu and Zn) in the paddy field soil fractions of MADA in the state of Kedah, Malaysia. Five replicate samples were randomly collected from five paddy fields in the MADA area of Jitra. The heavy metals in the soil were extracted using sequential extraction method that was presented by Badri and Aston [1], which consisted of four different fractions using different reagents. The first fraction of extraction is the easily leachable and freely exchangeable fraction (ELFE), which uses ammonium acetate (NH 4 CH 3 COO). The second fraction is acid reduction fraction (AR), which uses hydroxylamine chloride (NH 2 OH_HCl), while the third fraction of extraction called the organic oxidation fraction (OO) was carried out using the combination of hydrogen peroxide (H 2 O 2 ), and ammonium acetate (NH 4 CH 3 COO). The last fraction called the resistant fraction uses concentrated nitrate acid (HNO 3 ) and perchlorate acid (HClO 4 ). Generally, all the paddy soils in this study contained low levels of Pb, Cd, Cu and Zn concentration compared to the other paddy soils. The result showed that the concentration of heavy metals in the studied area was in the following decreasing order i.e.: Pb > Zn > Cu > Cd. The results also showed that the concentration of heavy metals in the paddy soil fractions were mainly concentrated in the RR fraction except for Pb, which was at the highest level in the OO fraction, whilst Cd was more evenly distributed throughout the whole soil fraction. In general, Pb was the highest metal concentration found in the OO fraction followed by Zn in the RR fraction of the soil fractions.

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Translocation of metals and its effects in the tomato plants grown on various amendments of tannery waste: evidence for involvement of antioxidants

Cited by 95 publications

References 31 publications

Trace elements and activity of antioxidative enzymes in Cistus ladanifer L. growing on an abandoned mine area

Trace elements and activity of antioxidative enzymes in Cistus ladanifer L. growing on an abandoned mine area

Heavy Metals in Crop Plants: Transport and Redistribution Processes on the Whole Plant Level

The concentration and distribution of selected heavy metals (Pb, Cd, Cu and Zn) in soils collected from the rice fields of MADA in Kedah, Malaysia

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