Effect of Chloride in Soil Solution on the Plant Availability of Biosolid‐Borne Cadmium

Weggler, Karin; McLaughlin, Michael J.; Graham, Robin D.

doi:10.2134/jeq2004.4960

Cited by 129 publications

(42 citation statements)

References 37 publications

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“…In particular, anions have been recognized to greatly reduce sorption and enhanced mobility of Cd and Pb in soils by complexation of Cl − with these metals (Usman et al, 2005;Ghallab and Usman, 2007). Salinity change the bioavailability of heavy metals such as Cd and Pb in soil, irrespective of soil pH (Weggler et al, 2004) and it is found to be one of the key features in translocating metals from roots to foliar parts of the plants (Fitzgerald et al, 2003;Manousaki et al, 2009). Moreover, Sari and Din (2012) reported that physiological mechanisms in addition to metals speciation control the Cd and Pb uptake by Avicennia alba roots and further translocation to the stems and leaves in saline conditions.…”

Section: Discussionmentioning

confidence: 99%

Growth and Physiological Responses of Two Rice Varieties to Applied Lead in Normal and Salt-Affected Soils

Iqbal¹,

Murtaza²,

Saqib³

et al. 2015

IJAB

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To cite this paper: Iqbal, M.M., G. Murtaza, Z.A. Saqib and R. Ahmad, 2015. Growth and physiological responses of two rice varieties to applied lead in saltaffected soils. AbstractIn arid and semi-arid regions of the world, soil salinity and heavy metal pollution occurring through various natural and anthropogenic means, is becoming major threat to safe crop production. The most feasible and effective approach is screening, breeding and cultivation of food crop varieties with low toxic metal accumulation. A pot study was conducted to investigate the growth and physiological responses of rice exposed to applied lead (Pb) in normal and salt-affected soils comprising four levels of Pb (0, 50, 100 and 150 mg kg -1 soil), two rice varieties (Shaheen basmati and KS-282) and two types of soil as normal and salt-affected soils. Increasing level of Pb decreased plant height, straw and paddy yields, photosynthetic and transpiration rates and stomatal conductance, more under salt-affected conditions. The cv. Shaheen basmati showed better response for growth, yield, physiological attributes and had lower Pb concentration in straw and paddy compared to cv. KS-282, at all levels of applied Pb in both normal and salt-affected soils. Thus, Shaheen basmati was found to be grown for Pb risk-free rice production and can be a good source for future rice breeding programs with the aim to produce low Pb accumulation and salt-tolerant rice varieties.

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Section: Discussionmentioning

confidence: 99%

Growth and Physiological Responses of Two Rice Varieties to Applied Lead in Normal and Salt-Affected Soils

Iqbal¹,

Murtaza²,

Saqib³

et al. 2015

IJAB

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“…A number of studies have examined the effect of inorganic anionic complex formation on the adsorption of Cd 2+ by soils. Weggler et al (2004) showed that increasing chloride (Cl) concentrations in soil solution increase the cadmium (Cd) concentration in the soil solution and Cd uptake by plants. This suggests that soil-borne Cd is desorbed by chloride ligands in soil solution.…”

Section: Complexationmentioning

confidence: 99%

Developments in Bioremediation of Soils and Sediments Polluted with Metals and Radionuclides. 3. Influence of Chemical Speciation and Bioavailability on Contaminants Immobilization/Mobilization Bio-processes

Hullebusch

Lens

Tabak

2005

Rev Environ Sci Biotechnol

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The biotransformation of metals is an exciting, developing strategy to treat metal contamination, especially in environments that are not accessible to other remediation technologies. However, our ability to benefit from these strategies hinges on our ability to monitor these transformations in the environment. That's why remediation of contaminated sediments and soil requires detailed in situ characterization of the speciation of the toxic substances and their transformations with respect to time and spatial distribution. The present paper gives an overview of the literature regarding research performed in the laboratory as well as in the field.

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“…In humus-rich soils, ca. 75 % of the element occurs in complexes with organic compounds (Weggler et al 2004). Bioavailable cadmium present in the environment can be easily absorbed by organisms.…”

Section: Resultsmentioning

confidence: 99%

“…However, the anthropogenic sources of potentially toxic trace elements in agricultural soils include mining, smelting, waste disposal, urban effluent, vehicle exhausts, sewage sludge, pesticides, fertilizers application and so on (Wei and Yang 2010). In an ecological aspect, contamination may have a significant negative impact on soil as habitat for numerous soil organisms and plants (Ayodele and Oluyomi 2011;Boshoff et al 2014;Dalenberg and Driel 1990;Heikens et al 2001;Holoubek et al 2009;Kelepertzis 2014;Martínez-López et al 2014;Notten et al 2005;Weggler et al 2004;Zhang et al 2015).…”

Section: Introductionmentioning

confidence: 99%

Monitoring bioconcentration of potentially toxic trace elements in soils trophic chains

Chrzan

2016

Environ Earth Sci

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Potentially toxic trace elements (PTEs) may be transferred to plants and consequently enter the food chain. Environmental monitoring of PTEs is important to control their concentrations in the environment and, particularly in farmland soils. The study aims at estimating the concentration of PTEs in the soil, its grass cover and collected soil invertebrates and consequently to investigate the transfer of pollutants in the soil-plant-fauna trophic chain. None of the PTEs was recorded in soil concentrations at levels exceeding the limits defined by the Regulation of the Minister of Environment. Mean concentrations of Zn, Pb, Cd, Ni, and Cu in soil were 55, 52, 44, 23, and 10 % of the permitted values, respectively. The concentrations of potentially toxic trace elements in soil samples were higher compared to their levels in grass, except for Cd which was the other way around. Higher concentration of Cd in grass than in soil may be attributable to direct deposition of metal particulates emitted from motor vehicles on grass, rather than soil along the road. As far as other metals (Pb, Ni, Cu, Zn) are concerned, concentration in soil was higher than in grass, however, lower than in the fauna. In the investigated meadow, both grass cover and the collected soil fauna accumulated cadmium in largest amounts and incorporated the studied metals in the following order:All considered elements showed greater concentrations (nearly tenfold higher for cadmium) in fauna than grasses.

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Effect of Chloride in Soil Solution on the Plant Availability of Biosolid‐Borne Cadmium

Cited by 129 publications

References 37 publications

Growth and Physiological Responses of Two Rice Varieties to Applied Lead in Normal and Salt-Affected Soils

Growth and Physiological Responses of Two Rice Varieties to Applied Lead in Normal and Salt-Affected Soils

Developments in Bioremediation of Soils and Sediments Polluted with Metals and Radionuclides. 3. Influence of Chemical Speciation and Bioavailability on Contaminants Immobilization/Mobilization Bio-processes

Monitoring bioconcentration of potentially toxic trace elements in soils trophic chains

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