Soil Contamination by Heavy Metals and Metalloids

Gasparatos, Dionisios

doi:10.3390/environments9030032

Cited by 10 publications

(5 citation statements)

References 23 publications

(23 reference statements)

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“…Such a lithology contributes to a cleaner environment within a sustainable and blue-green approach. It relates to the protection of groundwater and surface water quality (SDG 6), and is consistent with other SDGs (2, 3, 7, 12, 13 and 15) [30][31][32][33][34][35][36][37].…”

Section: Study Area Overviewsupporting

confidence: 82%

Geochemistry of Metals and Organic Matter in Water and Sediments of the Karst River Cetina, Croatia

Maldini¹,

Cukrov

Pikelj

et al. 2023

Water

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The Cetina River Basin (CRB) belongs to a Dinaric karst area (Croatia). According to the obtained results on water and sediment quality, the Cetina River reaches the sixth goal of Sustainable Development (source of drinking water). Together with the CRB water quality assessment, it was confirmed that sediments undoubtedly contribute to the purification of watercourses from trace metals as well as organic matter. In 5 years, water samples were collected at 20 sampling sites and sediment samples were collected at 18 sampling sites. The fresh water of the Cetina River belongs to the hydrocarbonate type due to its lithology. The concentrations of the measured elements in the sediments, normalized to Al, are an indicator of possible pressures affecting the ecosystem of the river. According to the Principal Component Analysis (PCA) for elements in sediments, Principal Component 1 (PC1) describes the geogenic origin of the elements, while Principal Component 2 (PC2) describes positive values reflecting anthropogenic pressures (Total Nitrogen, TN; and Total Phosphorus, TP). Depending on element composition, the factor scores related to PC1 and PC2 resulted in four different groups of sites. The first three groups of sediments showed geological impact, while the fourth group was partially anthropogenic in origin. The hierarchical cluster analysis showed four clusters in relation to the content of the elements. Cluster analysis of all elements and the Total Organic Carbon (TOC) in the sediments showed grouping in only two clusters, the first cluster consisting of Ca, and the second of TOC with other elements.

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Section: Study Area Overviewsupporting

confidence: 82%

Geochemistry of Metals and Organic Matter in Water and Sediments of the Karst River Cetina, Croatia

Maldini¹,

Cukrov

Pikelj

et al. 2023

Water

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“…However, the presence of excessive amounts of these two elements can also be toxic to plants [4]. In recent years, the extensive use of zinc-containing and copper-containing pesticides and fertilizers, as well as the development of zinc and copper mining, means that the pollution of zinc and copper in soil has become increasingly serious [3,37]. In order to solve the damage caused by soil metal pollution to plants, people have tried many methods.…”

Section: Discussionmentioning

confidence: 99%

MeGLYI-13, a Glyoxalase I Gene in Cassava, Enhances the Tolerance of Yeast and Arabidopsis to Zinc and Copper Stresses

Li,

Tang,

Che

et al. 2023

Plants

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Although zinc and copper are the two essential nutrients necessary for plant growth, their excessive accumulation in soil not only causes environmental pollution but also seriously threatens human health and inhibits plant growth. The breeding of plants with novel zinc or copper toxicity tolerance capacities represents one strategy to address this problem. Glyoxalase I (GLYI) family genes have previously been suggested to be involved in the resistance to a wide range of abiotic stresses, including those invoked by heavy metals. Here, a MeGLYI-13 gene cloned from a cassava SC8 cultivar was characterized with regard to its potential ability in resistance to zinc or copper stresses. Sequence alignment indicated that MeGLYI-13 exhibits sequence differences between genotypes. Transient expression analysis revealed the nuclear localization of MeGLYI-13. A nuclear localization signal (NLS) was found in its C-terminal region. There are 12 Zn2+ binding sites and 14 Cu2+ binding sites predicted by the MIB tool, of which six binding sites were shared by Zn2+ and Cu2+. The overexpression of MeGLYI-13 enhanced both the zinc and copper toxicity tolerances of transformed yeast cells and Arabidopsis seedlings. Taken together, our study shows the ability of the MeGLYI-13 gene to resist zinc and copper toxicity, which provides genetic resources for the future breeding of plants resistant to zinc and copper and potentially other heavy metals.

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“…They are involved in various metabolic processes or act as activators or constituents of enzymes. However, due to continuous anthropogenic activities such as mining, smelting operations or application of fertilizers, HMs in soils are more often found in toxic or lethal concentrations (Gasparatos, 2022;Adnan et al, 2022). The presence of HMs in high concentrations disrupt the primary and secondary metabolism of plants, thus hindering their yield and overall health.…”

Section: Introductionmentioning

confidence: 99%

Geranium robertianum L. tolerates various soil types burdened with heavy metals

Hasanović,

Čakar,

Ahatović Hajro

et al. 2023

Environ Sci Pollut Res

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Heavy metals (HMs) are crucial micronutrients for the growth and development of plants, however, human activities such as mining, smelting, and fertilizers have led to toxic levels of HMs in soil. Fortunately, many plant species have developed incredible adaptive mechanisms to survive and thrive in such harsh environments. As a widespread and ruderal species, Geranium robertianum L. inhabits versatile soil types, both polluted and unpolluted. Considering the ubiquity of G. robertianum, the study aimed to determine whether geographically distant populations can tolerate HMs.We collected soil and plant samples from serpentine, an anthropogenic heavy metal contaminated, and a nonmetalliferous site to study the physiological state of G. robertianum. HMs in soil and plants were determined using ame atomic absorption spectrometry. Spectrophotometric methods were used to measure the total content of chlorophylls a and b, total phenolics, phenolic acids, avonoids, and proline. Principal component analysis (PCA) was used to investigate the potential correlation between HMs concentrations gathered from various soil types and plant samples and biochemical data acquired for plant material. A statistically signi cant difference was observed for all localities regarding secondary metabolite parameters. A positive correlation between Ni and Zn in soil and Ni and Zn in plant matter was observed (p<0.0005) indicating higher absorption. Regardless of high concentrations of heavy metals in investigated soils, G. robertianum displayed resilience and was capable of thriving. These results may be ascribed to several protective mechanisms that allow G. robertianum to express normal growth and development and act as a pioneer species.

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Soil Contamination by Heavy Metals and Metalloids

Abstract: Soils are central to life on Earth because they provide food, clean water, and air due to their filtering capacity; raw materials; habitats for living organisms; and climate resilience via carbon sequestration, therefore supporting a variety of ecosystem services [...]

Cited by 10 publications

References 23 publications

Geochemistry of Metals and Organic Matter in Water and Sediments of the Karst River Cetina, Croatia

Geochemistry of Metals and Organic Matter in Water and Sediments of the Karst River Cetina, Croatia

MeGLYI-13, a Glyoxalase I Gene in Cassava, Enhances the Tolerance of Yeast and Arabidopsis to Zinc and Copper Stresses

Geranium robertianum L. tolerates various soil types burdened with heavy metals

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