Effects of arbuscular mycorrhizal fungi on frond antimony enrichment, morphology, and proteomics in Pteris cretica var. nervosa during antimony phytoremediation

Xi, Lin; Ya-qin, Shen; Zhao, Xin; Zhou, Min; Mi, Yidong; Li, Xinru; Chen, Haiyan; Wei, Yuan; Su, Hailei; Hou, Hong

doi:10.1016/j.scitotenv.2021.149904

Cited by 24 publications

(18 citation statements)

References 99 publications

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“…nervosa has been investigated for Sb phytoremediation and was found to be a Sb hyperaccumulator with no high translocation from root to shoots. When the test plant was exposed to 500 mg/kg of Sb, 672.8 mg Sb/kg were accumulated in the plant while when the initial concentration was 1000 mg/kg, the plant uptake was estimated 2054.8 mg Sb/kg [ 21 ]. Seedlings of S. bicolor in Sb-contaminated soil were treated with different levels of TiO 2 nanoparticles and the results showed that the bioconcentration factor was above one for each treatment, indicating that this plant also has phytoremediation potential [ 22 ].…”

Section: Introductionmentioning

confidence: 99%

Capacity of Nerium oleander to Phytoremediate Sb-Contaminated Soils Assisted by Organic Acids and Oxygen Nanobubbles

Σερίδου

Monogyiou

Syranidou

et al. 2022

Plants

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Antimony (Sb) is considered to be a toxic metalloid of increasing prevalence in the environment. Although several phytoremediation studies have been conducted, research regarding the mechanisms of Sb accumulation and translocation within plants remains limited. In this study, soil from a shooting range was collected and spiked with an initial Sb(III) concentration of 50 mg/kg. A pot experiment was conducted to investigate whether Nerium oleander could accumulate Sb in the root and further translocate it to the aboveground tissue. Biostimulation of the soil was performed by the addition of organic acids (OAs), consisting of citric, ascorbic, and oxalic acid at low (7 mmol/kg) or high (70 mmol/kg) concentrations. The impact of irrigation with water supplemented with oxygen nanobubbles (O2NBs) was also investigated. The results demonstrate that there was a loss in plant growth in all treatments and the presence of OAs and O2NBs assisted the plant to maintain the water content at the level close to the control. The plant was not affected with regards to chlorophyll content in all treatments, while the antioxidant enzyme activity of guaiacol peroxidase (GPOD) in the roots was found to be significantly higher in the presence of Sb. Results revealed that Sb accumulation was greater in the treatment with the highest OAs concentration, with a bioconcentration factor greater than 1.0. The translocation of Sb for every treatment was very low, confirming that N. oleander plant cannot transfer Sb from the root to the shoots. A higher amount of Sb was accumulated in the plants that were irrigated with the O2NBs, although the translocation of Sb was not increased. The present study provides evidence for the phytoremediation capacity of N. oleander to bioaccumulate Sb when assisted by biostimulation with OAs.

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Section: Introductionmentioning

confidence: 99%

Capacity of Nerium oleander to Phytoremediate Sb-Contaminated Soils Assisted by Organic Acids and Oxygen Nanobubbles

Σερίδου

Monogyiou

Syranidou

et al. 2022

Plants

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“…Nonetheless, no information is needed regarding the role of amendments to immobilize the microbial methylated Sb in soils. In another study, Xi et al (2022) reported that AMF maintains the function of ribosome and photosynthetic activities and counters the Sb toxicity by decreasing ROS production. In short, microbes cause oxidation of Sb, which, in turn, reduces the Sb retention in soil and its toxic effects on plants.…”

Section: Phytoremediation and Microbial Remediation Of Sb-contaminate...mentioning

confidence: 98%

Toxic effects of antimony in plants: Reasons and remediation possibilities—A review and future prospects

Tang

Meng²,

Xiang³

et al. 2022

Front. Plant Sci.

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Antimony (Sb) is a dangerous heavy metal (HM) that poses a serious threat to the health of plants, animals, and humans. Leaching from mining wastes and weathering of sulfide ores are the major ways of introducing Sb into our soils and aquatic environments. Crops grown on Sb-contaminated soils are a major reason of Sb entry into humans by eating Sb-contaminated foods. Sb toxicity in plants reduces seed germination and root and shoot growth, and causes substantial reduction in plant growth and final productions. Moreover, Sb also induces chlorosis, causes damage to the photosynthetic apparatus, reduces membrane stability and nutrient uptake, and increases oxidative stress by increasing reactive oxygen species, thereby reducing plant growth and development. The threats induced by Sb toxicity and Sb concentration in soils are increasing day by day, which would be a major risk to crop production and human health. Additionally, the lack of appropriate measures regarding the remediation of Sb-contaminated soils will further intensify the current situation. Therefore, future research must be aimed at devising appropriate measures to mitigate the hazardous impacts of Sb toxicity on plants, humans, and the environment and to prevent the entry of Sb into our ecosystem. We have also described the various strategies to remediate Sb-contaminated soils to prevent its entry into the human food chain. Additionally, we also identified the various research gaps that must be addressed in future research programs. We believe that this review will help readers to develop the appropriate measures to minimize the toxic effects of Sb and its entry into our ecosystem. This will ensure the proper food production on Sb-contaminated soils.

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“…Even though Sb is a trace element and not essential for plants, it can be accumulated in their edible parts according to numerous studies. These findings might indeed pose a risk to human health since Sb can enter the food chain and subsequently the human body 8,9 . Particularly in mining areas with high Sb content in soil, a high accumulation in plants was reported 10‐12 .…”

Section: Introductionmentioning

confidence: 94%

Hydroponic phytoremediation of antimony by Tamarix smyrnensis and Nerium oleander

Seridou,

Fyntrilakis,

Syranidou

et al. 2023

J of Chemical Tech & Biotech

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Background: Antimony (Sb) is considered a priority pollutant and its removal from the environment is of great importance. Among the various treatments, phytoremediation is considered an efficient method when the accumulation of this metalloid in plant tissues is sufficiently high. This work focused on removal of Sb(III) from aqueous solution at two Sb concentrations (5 and 10 ppm) and using salt as stressor (100 mmol L −1 ) only at the lowest Sb concentration (5 ppm). The response of two salt-tolerant plant species -Tamarix smyrnensis and Nerium oleanderwas monitored when subjected to Sb-contaminated hydroponic solutions.Results: Plant growth and water content remained unaltered within the 15-day experimental period, while the chlorophyll content declined significantly at the higher Sb level (10 ppm) only for N. oleander. The antioxidant enzymatic activity in T. smyrnensis with respect to guaiacol peroxidase (GPOD) and catalase (CAT) was significantly increased in the treatment under Sb and salt stress. In N. oleander there was a strong increase in GPOD activity by the exposure to Sb, whereas the CAT activity was increased considerably with the presence of salinity. Sb concentration was detected on the surface of the leaves, indicating that excretion occurred in both plants. Increased accumulation was observed in N. oleander in the absence of salinity whereas, under salt stress, Sb accumulation was considerably higher (60%) in T. smyrnensis. Notably, both plants could accumulate a high amount of Sb, preferentially in the roots, with the concentrations in the leaves being significantly lower. Conclusion:The experimental results from this study demonstrate that both plants are suitable for phytoremediation due to substantial Sb accumulation without visible Sb toxicity.

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Effects of arbuscular mycorrhizal fungi on frond antimony enrichment, morphology, and proteomics in Pteris cretica var. nervosa during antimony phytoremediation

Cited by 24 publications

References 99 publications

Capacity of Nerium oleander to Phytoremediate Sb-Contaminated Soils Assisted by Organic Acids and Oxygen Nanobubbles

Capacity of Nerium oleander to Phytoremediate Sb-Contaminated Soils Assisted by Organic Acids and Oxygen Nanobubbles

Toxic effects of antimony in plants: Reasons and remediation possibilities—A review and future prospects

Hydroponic phytoremediation of antimony by Tamarix smyrnensis and Nerium oleander

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