Phytate induced arsenic uptake and plant growth in arsenic-hyperaccumulator Pteris vittata

Liu, Xue; Fu, Jijiang; Tang, Ni; Silva, E.B. da; Cao, Yue; Turner, Benjamín L.; Chen, Yanshan; Lena, Q.

doi:10.1016/j.envpol.2017.04.021

Cited by 26 publications

(19 citation statements)

References 32 publications

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“…During the pre-culture with P starvation, the low-availability P environment may evoke P deficiency responses in P. vittata. Once As(V), as P analog, is furnished, P. vittata may not be able to distinguish between them and mistakenly uptake As, thereby increasing the accumulation of As in plants [18]. Our results of inhibitory effect of P on plant As accumulation may support this hypothesis.…”

Section: A Arsenic Concentration and Accumulation In Plantssupporting

confidence: 64%

Phosphorus- and Iron-Deficiency Stresses Affect Arsenic Accumulation and Root Exudates in Pteris vittata

Yang¹,

Chien²,

Ho³

et al. 2019

IJESD

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Phosphorus (P) and iron (Fe) are important elements for arsenic (As) transportation between plant and As contaminated soil. In the case of As phytoremediation, a better understanding of the roles to the P and Fe in regulating As bioavailability and plant growth will be beneficial to optimize the phytoremediation process. In this study, we demonstrated that both As absorption and translocation from root to shoot of Pteris vittata were enhanced under phosphorus deficiency. In high arsenic concentration treatments, P. vittata assimilated more As under nutrient deficiency. Moreover, As persuaded plants to secrete oxalic acid in sufficient nutrients. P-and Fe-deficiency stimulate more oxalic acid exuded by plants.

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Section: A Arsenic Concentration and Accumulation In Plantssupporting

confidence: 64%

Phosphorus- and Iron-Deficiency Stresses Affect Arsenic Accumulation and Root Exudates in Pteris vittata

Yang¹,

Chien²,

Ho³

et al. 2019

IJESD

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“…They observed that As uptake and its root–shoot translocation was enhanced, indicating the importance of Pi supply for As phytoremediation. Pteris vittata has been extensively studied for its role in phytoremediation of As-contaminated soils [ 359 , 362 , 363 , 364 , 365 , 366 ]. The As-hyperaccumulator, P. vittata , is very efficient in the phytoextraction of As as it can hyperaccumulate As through high-affinity Pi transporters and reduce it to As(III), ultimately sequestering into frond vacuoles [ 363 , 365 ] ( Figure 6 ).…”

Section: Detoxification Mechanisms Of Arsenic In Plantsmentioning

confidence: 99%

Arsenic Uptake, Toxicity, Detoxification, and Speciation in Plants: Physiological, Biochemical, and Molecular Aspects

Abbas

Murtaza

Bibi

et al. 2018

IJERPH

589

240

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Environmental contamination with arsenic (As) is a global environmental, agricultural and health issue due to the highly toxic and carcinogenic nature of As. Exposure of plants to As, even at very low concentration, can cause many morphological, physiological, and biochemical changes. The recent research on As in the soil-plant system indicates that As toxicity to plants varies with its speciation in plants (e.g., arsenite, As(III); arsenate, As(V)), with the type of plant species, and with other soil factors controlling As accumulation in plants. Various plant species have different mechanisms of As(III) or As(V) uptake, toxicity, and detoxification. This review briefly describes the sources and global extent of As contamination and As speciation in soil. We discuss different mechanisms responsible for As(III) and As(V) uptake, toxicity, and detoxification in plants, at physiological, biochemical, and molecular levels. This review highlights the importance of the As-induced generation of reactive oxygen species (ROS), as well as their damaging impacts on plants at biochemical, genetic, and molecular levels. The role of different enzymatic (superoxide dismutase, catalase, glutathione reductase, and ascorbate peroxidase) and non-enzymatic (salicylic acid, proline, phytochelatins, glutathione, nitric oxide, and phosphorous) substances under As(III/V) stress have been delineated via conceptual models showing As translocation and toxicity pathways in plant species. Significantly, this review addresses the current, albeit partially understood, emerging aspects on (i) As-induced physiological, biochemical, and genotoxic mechanisms and responses in plants and (ii) the roles of different molecules in modulation of As-induced toxicities in plants. We also provide insight on some important research gaps that need to be filled to advance our scientific understanding in this area of research on As in soil-plant systems.

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“…Li et al reported that Sb bioaccessibility, determined using two in vitro extraction methods, was negatively correlated with the Fe content in soil . In addition, it is possible that Sb may enter cells through P-transporters , because Sb, like As, is a P analogue sharing similar chemical properties and behavior. Conceivably, labile Sb may be transformed into less soluble phases by complexation with Fe under gastrointestinal conditions, similar to the previous observations for As .…”

Section: Resultsmentioning

confidence: 99%

Leaching and In Vivo Bioavailability of Antimony in PET Bottled Beverages

Zhou

et al. 2021

Environ. Sci. Technol.

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Antimony (Sb) may leach from polyethylene terephthalate (PET) materials into bottled water under improper storage conditions, particularly at high temperatures, leading to potential Sb chronic exposure and adverse health effects. However, Sb leaching may be promoted by various beverage constituents, which has received limited attention to date. In addition, few studies have considered Sb bioavailability in beverages and the influence of the beverage matrix on Sb bioavailability. In this study, PET-bottled beverages (n = 50) covering six categories (namely, carbonated, fruit juices, tea, sports, protein, and coffee beverages) were explored. Antimony leaching was assessed following the incubation of beverages at 60 °C for 7 days, which resulted in Sb concentrations 1.10–10.9 times greater than concentrations observed pre-incubation. Although regulatory standards vary internationally, a total of 21 beverages exceeded the Japanese Sb drinking water standard of 2 μg/L (up to 4.08 ± 0.11 μg/L) following incubation at 60 °C. pH significantly influenced Sb leaching (r = −0.38, p = 0.007) with beverages displaying lower pH (e.g., carbonated drinks) exhibiting higher Sb concentrations. An in vivo mouse model, using the liver as the biological endpoint, was adopted to assess Sb relative bioavailability (RBA) in bottled beverages. Sb RBA ranged from 1.97–58.7% with coffee beverages exhibiting the lowest Sb RBA (1.97–13.7%) and protein drinks the highest (41.1–58.7%). Linear regression revealed that Sb RBA in beverages was negatively influenced by Fe (r = −0.69, p = 0.02) and P (r = −0.73, p = 0.01) concentrations but positively correlated with tartaric acid (r = 0.59, p = 0.02). When an exposure assessment was undertaken using data generated in this study, carbonated and protein-rich beverages exhibited a higher exposure risk due to elevated Sb leaching and high Sb RBA compared to other beverage categories.

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Phytate induced arsenic uptake and plant growth in arsenic-hyperaccumulator Pteris vittata

Cited by 26 publications

References 32 publications

Phosphorus- and Iron-Deficiency Stresses Affect Arsenic Accumulation and Root Exudates in Pteris vittata

Phosphorus- and Iron-Deficiency Stresses Affect Arsenic Accumulation and Root Exudates in Pteris vittata

Arsenic Uptake, Toxicity, Detoxification, and Speciation in Plants: Physiological, Biochemical, and Molecular Aspects

Leaching and In Vivo Bioavailability of Antimony in PET Bottled Beverages

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