Metal Availability, Uptake, Transport and Accumulation in Plants

Greger, Maria

doi:10.1007/978-3-662-07743-6_1

Cited by 103 publications

(92 citation statements)

References 92 publications

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“…These heavy metals are transported from roots to the different parts of the plant. Greger (2004) found that Cd and Zn were more mobile than Cu and Pb.…”

Section: Heavy Metals Concentration In O Stamineus Plant Partsmentioning

confidence: 99%

Using <i>Orthosiphon stamineus</i> B. for Phytoremediation of Heavy Metals in Soils Amended with Sewage Sludge

Abdu¹

2011

American Journal of Applied Sciences

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Problem statement:Phytoremediation is a biological treatment where plants are used to remove pollutants from the environment to make them harmless. A study was conducted in a greenhouse at the Faculty of Forestry, Universiti Putra Malaysia on the potential of Orthosiphon stamineus B. planted in sewage sludge for heavy metals uptake. The objective of this study was to evaluate the ability of O. stamineus to remove toxic heavy metals from sewage sludge. Approach: A total of 36 of O. stamineus were treated at six different levels of soil mixture and sludge treatment including one control. The treatments were replicated six times. Growth parameters mainly height and basal diameter were measured for each plant within 10 weeks. Soil texture (pipette method), soil pH (glass-electrode method) and total carbon (C) (Los on Ignition) were determined. The concentration of heavy metals that include cadmium (Cd), chromium (Cr), zinc (Zn), copper (Cu) and lead (Pb) in the planting media and plant parts were analyzed using Inductively Coupled Plasma-Mass Spectrometry (ICP-MS). Results: There was a significant difference (P≤0.05) in height, basal diameter and number of leaves among the six treatments. The height increment values for all treatments in descending order are: T3 (10.22 cm), T2 (12.42 cm), T1 (13.92 cm), T5 (14.65 cm), T4 (16.20 cm) and C (16.97 cm). In terms of basal diameter, the highest incremental values in ascending order are T5 (0.99 mm), T1 (1.20 mm), T3 (1.31 mm), T2 (1.38 mm), T4 (1.53 mm) and C (1.75 mm). Soil texture for the control is categorized as clay and for T5 is silt loam. Soil reaction is acidic while total carbon ranges from 16.7% to 61.3 %. The concentrations of heavy metals in the planting medium were higher before planting as compared to after planting. For examples, the values for Cd, Cr, Zn, Cu and Pb in T5 (100% sewage sludge) before planting are 0.18 ppm, 23.45 ppm, 290.05 ppm, 17.07 ppm and 5.33 ppm, respectively. The values decreased after planting where 0.13 ppm for Cd, 24.30 ppm for Cr, 252.04 ppm for Zn, 18.56 ppm for Cu and 5.96 ppm for Pb were observed. O. stamineus absorbed heavy metals in the range of 0.01 ppm to 0.57 ppm for Cd, 0.08 ppm to 8.48 ppm for Cr, 0 ppm to 43.93 ppm for Zn, 0.11 ppm to 16.73 ppm for Cu and 0.01 ppm to 9.05 ppm for Pb in various plant parts of leaves, stems and roots. Conclusion: Most of the heavy metals taken up by the plants were stored in the leaves, whereas Zn seemed to be stored in all plant parts. These results indicate that O. stamineus has the potential to accumulate heavy metals particularly Zn, Pb and hence could be considered as a good phytoremediator species.

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“…These heavy metals are transported from roots to the different parts of the plant. Greger (2004) found that Cd and Zn were more mobile than Cu and Pb.…”

Section: Heavy Metals Concentration In O Stamineus Plant Partsmentioning

confidence: 99%

Using <i>Orthosiphon stamineus</i> B. for Phytoremediation of Heavy Metals in Soils Amended with Sewage Sludge

Abdu¹

2011

American Journal of Applied Sciences

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“…The mean concents of target metals in plant samples decrease in the following: Zn>Cu>Ni>Cd. This is probably attributed to different metal content in compost, diverse metal uptake mechanisms, and some disparities in their translocation abilities [33]. Fig.…”

Section: Metal Concentrations and Partitioning In Plantsmentioning

confidence: 99%

Bioaccumulation of Cadium, Copper, Zinc, and Nickel by Weed Species from Municipal Solid Waste Compost

Zhao¹,

Duo²

2015

Pol. J. Environ. Stud.

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With the rise in population and economic development, municipal solid waste (MSW) is being produced massively, especially in developing countries. Chinese cities generate more than 100 million tons of MSW every year [1]. A lot of attention has been paid to the disposal of large volumes of MSW in China. Composting has proved to be an effective way to reduce large quantities of MSW and accelerate the biodegradable components to decompose and stabilize, for completely sustainable recycling [2]. The use of MSW compost on agricultural land enables the recycling of valuable plant nutrients N, P, and K plus micronutrients and organic matter, resulting in beneficial effects on soil properties such as water-holding capacity, aeration and porosity, and plant nutrition [3][4][5]. However, MSW compost often contains potentially toxic metals that can cause phytotoxicity, soil contamination, and accumulation in plant and animal products [6][7][8]. Therefore, toxic metals should be cleaned up before MSW compost application on agricultural land.Phytoextraction, which uses appropriate plants to remove metals from contaminated soils, has gained popularity due to its low cost and comparatively lower damage [9, 10]. Early studies mostly focused on hyperaccumulator plant species and more than 400 species of hyperaccumulators have been documented in the world [11,12]. Though hyperaccumulators can accumulate exceptionally high quantities of metals, they are not practically used in phytoextraction partly due to the fact that the hyperaccumulator plants are relatively rare, have limited response to various metals, and maintain a slow growth rate [13]. Thus identification of more effective hyperaccumulators is of Pol. J. Environ. Stud. Vol. 24, No. 1 (2015), [413][414][415][416][417] AbstractA field experiment was conducted to evaluate the efficiency of native monocotyledonous weed species for heavy metal phytoextraction from municipal solid waste (MSW) compost. Results showed that total contents of cadium (Cd), copper (Cu), and zinc (Zn) in MSW compost generally exceeded the maximum levels indicated in Chinese regulations, except nickel (Ni). The general trend of metal accumulation in plants was Zn>Cu>Ni>Cd and accumulation differences depended on plant species. Except for Carex tristachya, the Cd, Cu, and Ni contents in above-ground parts of four other species were within the normal values in plants. Most plants accumulated target metals mostly in the roots. With BCF and TF values >1, Carex tristachya displayed some Cd-hyperaccumulative characteristics, being classified as potential species for phytoextraction of Cd from MSW compost. Other species can be considered adequate candidates for metal stabilization and soil conservation.

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“…Insights from all these studies point to the existence of a wide variation in the ability of different plants to accumulate heavy metals and the ability of a particular genera or species to accumulate different amounts of the same heavy metal from different sites. This variability depends upon environmental factors like metal speciation of the sediment, initial concentration of the metal present at a particular site, pH, redox potential, sediment organic matter, interaction of different heavy metals among each other and the plant growth form [28]- [30]. Moreover, the concentration of heavy metals in the root tissues of freshwater macrophytes from polluted areas has been found to be higher compared to that of their aboveground parts [15] [21] [22].…”

Section: Introductionmentioning

confidence: 99%

Heavy Metal Accumulation Potential of Some Wetland Plants Growing Naturally in the City of Kolkata, India

Jha¹,

Samal²,

Santra³

et al. 2016

AJPS

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Freshwaters are not only used locally in many developing countries but they are often over exploited for domestic purposes, agriculture and disposal of industrial wastes which result in an overload of excess nutrients, harmful chemicals and heavy metals. Plant species together with sediments and water samples collected from eleven aquatic water bodies in the vicinity of industrial units in Kolkata were studied for their potential to uptake Pb, Cd and Cr under field conditions. Cd and Cr concentrations in the sediments were higher than background values considered to be toxic.Alternanthera philoxeroides and Eichhornia crassipes were the two invasive species present, with the former being more widely distributed. Among native plants, Ipomoea aquatica was the most abundant. Metal uptake in the plants differed among species, tissues and sites. Pb and Cd accumulation in root tissues for all plants in most sites suggested an exclusion strategy for metal tolerance. Since I. aquatica is widely consumed in many parts of SE Asia, its metal content should be checked before use since it was found to efficiently translocate both Pb and Cd from roots to shoots.The potential of A. philoxeroides as a metal excluder needs to be explored further since it translocates less to its shoots as compared to E. crassipes and I. aquatica.

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Metal Availability, Uptake, Transport and Accumulation in Plants

Cited by 103 publications

References 92 publications

Using <i>Orthosiphon stamineus</i> B. for Phytoremediation of Heavy Metals in Soils Amended with Sewage Sludge

Using <i>Orthosiphon stamineus</i> B. for Phytoremediation of Heavy Metals in Soils Amended with Sewage Sludge

Bioaccumulation of Cadium, Copper, Zinc, and Nickel by Weed Species from Municipal Solid Waste Compost

Heavy Metal Accumulation Potential of Some Wetland Plants Growing Naturally in the City of Kolkata, India

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