Boron [B, 5]

Kabata‐Pendias, Alina; Szteke, Barbara

doi:10.1201/b18198-7

Cited by 15 publications

(27 citation statements)

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“…The most important role in retaining heavy metals in the soil is played by the content of the clay fraction in soil texture. In the case of sandy soils, the low content of the clay fraction leads to greater mobility of heavy metals, which makes them able to move both deep into the profile and greatly facilitates their bioavailability for plants [ 2 , 3 , 6 ]. The clay fraction, like organic matter, has a colloidal character and a high specific surface area, which allows the concentration of heavy metals and their solubility by immobilization to be monitored [ 6 , 7 ].…”

Section: Introductionmentioning

confidence: 99%

“…The clay fraction, like organic matter, has a colloidal character and a high specific surface area, which allows the concentration of heavy metals and their solubility by immobilization to be monitored [ 6 , 7 ]. The content of clay fraction can also affect the pH of the soil, which is mentioned in many works in the literature, as the main factor influencing the greater availability of elements with high soil acidification [ 2 , 3 , 6 – 8 ]. In addition, environmental factors include the influence of the heavy metal itself and its form present in the soil, followed by the possibility of penetration into the plant under appropriate soil conditions [ 2 , 3 , 6 – 9 ].…”

Section: Introductionmentioning

confidence: 99%

“…The content of clay fraction can also affect the pH of the soil, which is mentioned in many works in the literature, as the main factor influencing the greater availability of elements with high soil acidification [ 2 , 3 , 6 – 8 ]. In addition, environmental factors include the influence of the heavy metal itself and its form present in the soil, followed by the possibility of penetration into the plant under appropriate soil conditions [ 2 , 3 , 6 – 9 ]. To a large extent, the impact of heavy metals depends on their properties, concentration in the environment, and the form present; free ions are taken up the fastest, while metals occurring in the form of complexes are released, but only with the help of active substances derived from plants [ 6 , 10 ].…”

Section: Introductionmentioning

confidence: 99%

“…To a large extent, the impact of heavy metals depends on their properties, concentration in the environment, and the form present; free ions are taken up the fastest, while metals occurring in the form of complexes are released, but only with the help of active substances derived from plants [ 6 , 10 ]. It is worth noting the properties of some metals (Cu and Zn), which in small amounts have a stimulating effect, constituting microelements which are an indispensable component necessary for the proper course of metabolic processes [ 2 , 11 ]. A huge role in the process of uptake and accumulation of metals is also played by the plant itself.…”

Section: Introductionmentioning

confidence: 99%

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Antioxidant activities in relation to the transport of heavy metals from the soil to different parts of Betula pendula (Roth.)

et al. 2023

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Background Birch is a tree with a common occurrence in the environment and its organs are used in the form of herbal material. An important aspect of this study is birch pollen, which is a problem for allergy sufferers, and due to a variety of environmental conditions, its allergenicity may increase. Among the organs studied, inflorescences deserve attention, which, as seen from an overview of the literature, are analysed for the content of heavy metals for the first time in this study. Results This paper investigated the relationship between antioxidant properties and the content of heavy metals (Cu, Zn, Cd, Pb, Ni and Cr) as the plant's response to stress, taking into account both the vegetative and generative organs of the tree Betula pendula. While studying the accumulation of elements in individual organs, the research was extended to include the aspect of different environmental conditions, reflected in two soil types of differing physicochemical properties: sandy and silty soils. In order to thoroughly analyse the transport of the studied heavy metals from the soil to individual organs (leaves, inflorescences and pollen), ecotoxicological indicators were used. A modified translocation factor (TF) index into sTF (sap translocation factor) was presented as a novelty in research, calculated based on the content of selected heavy metals in the sap flowing to individual birch organs. This allowed for a more complete description of the transport of elements in the aerial parts of plants, indicating the accumulation of zinc and cadmium, especially in leaves. Among the studied environmental conditions which may affect the accumulation of heavy metals, sandy soil is of particular significance, conditioning lower pH values, among other things. However, analysis of the reaction of birch to the conditions of the soil environment and the content of heavy metals, based on antioxidant properties, demonstrated an evident reaction to stress, but without an unambiguous response among the studied vegetative and generative organs. Conclusions As birch is a plant with wide utility values, monitoring studies are advisable to exclude the risk of accumulation of heavy metals in its organs, and for this purpose it may be useful to use the sTF indicator and assess the antioxidant potential.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Antioxidant activities in relation to the transport of heavy metals from the soil to different parts of Betula pendula (Roth.)

et al. 2023

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“…Despite their name, rare earth elements (REEs) are actually plentiful in the earth’s crust and worldwide soils, with an abundance comparable with copper, lead, and zinc . REEs comprise the lanthanides plus scandium and yttrium and can be further subdivided into light REEs (LREEs) defined as series lanthanum (La) to europium (Eu) and heavy REEs (HREEs) spanning gadolinium (Gd) to ytterbium (Yb).…”

Section: Introductionmentioning

confidence: 99%

Plasma-Membrane-Localized Transporter NREET1 is Responsible for Rare Earth Element Uptake in Hyperaccumulator Dicranopteris linearis

Zheng

Liu

Sun

et al. 2023

Environ. Sci. Technol.

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Rare earth elements (REEs) are critical for numerous modern technologies, and demand is increasing globally; however, production steps are resource-intensive and environmentally damaging. Some plant species are able to hyperaccumulate REEs, and understanding the biology behind this phenomenon could play a pivotal role in developing more environmentally friendly REE recovery technologies. Here, we identified a REE transporter NRAMP REE Transporter 1 (NREET1) from the REE hyperaccumulator fern Dicranopteris linearis. Although NREET1 belongs to the natural resistance-associated macrophage protein (NRAMP) family, it shares a low similarity with other NRAMP members. When expressed in yeast, NREET1 exhibited REE transport capacity, but it could not transport divalent metals, such as zinc, nickel, manganese, or iron. NREET1 is mainly expressed in D. linearis roots and predominantly localized in the plasma membrane. Expression studies in Arabidopsis thaliana revealed that NREET1 functions as a transporter mediating REE uptake and transfer from root cell walls into the cytoplasm. Moreover, NREET1 has a higher affinity for transporting light REEs compared to heavy REEs, which is consistent to the preferential enrichment of light REEs in field-grown D. linearis. We therefore conclude that NREET1 may play an important role in the uptake and consequently hyperaccumulation of REEs in D. linearis. These findings lay the foundation for the use of synthetic biology techniques to design and produce sustainable, plant-based REE recovery systems.

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Using iterative 2δ‐technique and 4δ‐outlier test for evaluating the geochemical background concentrations of trace elements in topsoil at Cao Bang province, Vietnam

Tran,

Nguyen,

Dang

et al. 2024

Vietnam Journal of Chemistry

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This study investigated the geochemical background values for seven trace elements in topsoil samples collected from highland areas within Cao Bang province, Vietnam. Total concentrations of these elements were determined, revealing the following order of mean concentration: Zn > Cr > Pb > Cu > As > Ni > Co. The background values were calculated using two different methods including iterative 2δ‐technique and 4δ‐outlier test. The 4δ‐outlier test yielded the following background concentrations (dry weight) for the seven elements: As (24.41 ± 12.42 mg kg−1), Co (15.64 ± 10.57 mg kg−1), Cr (49.31 ± 33.41 mg kg−1), Cu (29.77 ± 27.14 mg kg−1), Ni (22.52 ± 13.33 mg kg−1), Pb (38.06 ± 31.48 mg kg−1), Zn (71.79 61.09 mg kg−1). The 2δ‐technique, on the other hand, resulted in the following background concentrations (dry weight) for the same elements: As (8.41 ± 8.57 mg kg−1), Co (5.06 ± 4.31 mg kg−1), Cr (26.72 ± 26.20 mg kg−1), Cu (25.31 ± 24.81 mg kg−1), Ni (8.02 ± 7.83 mg kg−1), Pb (28.12 ± 27.58 mg kg−1), Zn (51.91 ± 49.44 mg kg−1). These results provide valuable baseline data for future environmental assessments and monitoring programs in the region. They also highlight the potential impact of human activities, such as mining, on the geochemical landscape of highland areas.

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Boron [B, 5]

Cited by 15 publications

References 0 publications

Antioxidant activities in relation to the transport of heavy metals from the soil to different parts of Betula pendula (Roth.)

Antioxidant activities in relation to the transport of heavy metals from the soil to different parts of Betula pendula (Roth.)

Plasma-Membrane-Localized Transporter NREET1 is Responsible for Rare Earth Element Uptake in Hyperaccumulator Dicranopteris linearis

Using iterative 2δ‐technique and 4δ‐outlier test for evaluating the geochemical background concentrations of trace elements in topsoil at Cao Bang province, Vietnam

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