Arbuscular mycorrhiza and Aspergillus terreus inoculation along with compost amendment enhance the phytoremediation of Cr-rich technosol by Solanum lycopersicum under field conditions

Akhtar, Ovaid; Kehri, Harbans Kaur; Zoomi, Ifra

doi:10.1016/j.ecoenv.2020.110869

Cited by 21 publications

(8 citation statements)

References 46 publications

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“…Research has also shown that the effects of AMF vary depending on the type of soil substrate and plant species [72]; however, AMF causes the establishment and survival of host plants in various environments such as saline soils, alkaline soils, agricultural lands, mine tailings, soils contaminated with metal(loid)s, etc. [73]. As mentioned, AMF improves plant nutrition and plant-water relationships by creating efficient coexistence with plants and increasing the uptake level and volume of available soil for the root system, thereby increasing plant tolerance to environmental stresses such as root pathogen damage [10,74,75].…”

Section: Arbuscular Mycorrhizal Fungi (Amf)mentioning

confidence: 99%

Arbuscular Mycorrhizal Fungi Are an Influential Factor in Improving the Phytoremediation of Arsenic, Cadmium, Lead, and Chromium

Boorboori

Zhang

2022

JoF

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The increasing expansion of mines, factories, and agricultural lands has caused many changes and pollution in soils and water of several parts of the world. In recent years, metal(loid)s are one of the most dangerous environmental pollutants, which directly and indirectly enters the food cycle of humans and animals, resulting in irreparable damage to their health and even causing their death. One of the most important missions of ecologists and environmental scientists is to find suitable solutions to reduce metal(loid)s pollution and prevent their spread and penetration in soil and groundwater. In recent years, phytoremediation was considered a cheap and effective solution to reducing metal(loid)s pollution in soil and water. Additionally, the effect of soil microorganisms on increasing phytoremediation was given special attention; therefore, this study attempted to investigate the role of arbuscular mycorrhizal fungus in the phytoremediation system and in reducing contamination by some metal(loid)s in order to put a straightforward path in front of other researchers.

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Section: Arbuscular Mycorrhizal Fungi (Amf)mentioning

confidence: 99%

Arbuscular Mycorrhizal Fungi Are an Influential Factor in Improving the Phytoremediation of Arsenic, Cadmium, Lead, and Chromium

Boorboori

Zhang

2022

JoF

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“…We identified 410 metabolites, of which over 50% of them contribute to the bioavailability of heavy metals, such as amino acids, organic acids, carbohydrates, nucleotides, and other primary and secondary metabolites ( Luo et al, 2017 ). Therefore, this study provides novel evidence that microbial metabolites have significant effects in activating heavy metals and promoting phytoremediation ( Yang et al, 2016 ; Jian et al, 2019 ; Akhtar et al, 2020 ; Huang et al, 2020 ; Ju et al, 2020 ; Tao et al, 2020 ).…”

Section: Discussionmentioning

confidence: 94%

“…and Aspergillus niger, which is consistent with the higher transfer coefficients in these treatments. However, in previous work, Pro content was reduced under heavy-metal conditions in the roots of plants inoculated with arbuscular mycorrhizal fungi, which reduced plants' exposure to metals by sequestering them into their own structures (Kanwal et al, 2015;Akhtar et al, 2020;Huang et al, 2020). Therefore, the mechanisms of plant tolerance to heavy metals imparted by inoculation with microorganisms may be diverse.…”

Section: Microbes Affect Physiological Metabolites and Enhance Plants Tolerance To Heavy Metalsmentioning

confidence: 92%

Inoculation With Indigenous Rhizosphere Microbes Enhances Aboveground Accumulation of Lead in Salix integra Thunb. by Improving Transport Coefficients

et al. 2021

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The application of plant–microbial remediation of heavy metals is restricted by the difficulty of exogenous microbes to form large populations and maintain their long-term remediation efficiency. We therefore investigated the effects of inoculation with indigenous heavy-metal-tolerant rhizosphere microbes on phytoremediation of lead (Pb) by Salix integra. We measured plant physiological indexes and soil Pb bioavailability and conducted widespread targeted metabolome analysis of strains to better understand the mechanisms of enhance Pb accumulation. Growth of Salix integra was improved by both single and co-inoculation treatments with Bacillus sp. and Aspergillus niger, increasing by 14% in co-inoculated plants. Transfer coefficients for Pb, indicating mobility from soil via roots into branches or leaves, were higher following microbial inoculation, showing a more than 100% increase in the co-inoculation treatment over untreated plants. However, Pb accumulation was only enhanced by single inoculation treatments with either Bacillus sp. or Aspergillus niger, being 10% greater in plants inoculated with Bacillus sp. compared with uninoculated controls. Inoculation mainly promoted accumulation of Pb in aboveground plant parts. Superoxide dismutase and catalase enzyme activities as well as the proline content of inoculated plants were enhanced by most treatments. However, soil urease and catalase activities were lower in inoculated plants than controls. Proportions of acid-soluble Pb were 0.34 and 0.41% higher in rhizosphere and bulk soil, respectively, of plants inoculated with Bacillus sp. than in that of uninoculated plants. We identified 410 metabolites from the microbial inoculations, of which more than 50% contributed to heavy metal bioavailability; organic acids, amino acids, and carbohydrates formed the three major metabolite categories. These results suggest that both indigenous Bacillus sp. and Aspergillus niger could be used to assist phytoremediation by enhancing antioxidant defenses of Salix integra and altering Pb bioavailability. We speculate that microbial strains colonized the soil and plants at the same time, with variations in their metabolite profiles reflecting different living conditions. We also need to consider interactions between inocula and the whole microbial community when applying microbial inoculation to promote phytoremediation.

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“…Disturbance of native plant groups in desertification-threatened regions is frequently accompanied by degradation of physical and biological soil properties, soil structure, nutrient availability, and organic matter. When restoring disturbed land, it is crucial to replace not only the above-ground vegetation but also biological and physical soil properties [46,47]. A particularly new technique for restoring land is to inoculate the soil with AM fungi while reintroducing vegetation in ecological restoration.…”

Section: Phytoremediationmentioning

confidence: 99%

“…Soil's quality parameters had been considerably improved over the long term when a mixture of indigenous AM fungal species was introduced compared to non-nodulated soil and soil inoculated with a single exotic species of AM fungi [47]. The benefits had been elevated PG, enhanced P uptake [46], soil N content, higher soil organic matter, and soil aggregation, attributed to higher legume nodulation in the presence of AM fungi, higher water infiltration, and soil aeration because of soil aggregation [43,47]. Native strains of AM fungi improve the extraction of heavy metal(s) from polluted soils and make the soil healthy and appropriate for crop production [50].…”

Section: Phytoremediationmentioning

confidence: 99%

Advantageous of Beneficial Microbes for Bioremediation of Adulterated Global-Cultivated Soils

Kamal Prasad

2023

Innovare J Life Sci

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The soil is one of the most valuable resources since it forms the foundation for many important life processes and ecosystem purposes. Worldwide, soil pollution is a result of human activities that are not sustainable, such as the use of dangerous inorganic chemicals. The mining, production, transportation, end-user use, disposal, and accidental discharge of chemicals all contribute to soil contamination, which in turn jeopardizes human life, livestock, wildlife, and entire ecosystems. Purifying and decontaminating soil with conventional procedures is labor-intensive and time-consuming and can modify the soil’s physical, chemical, and biological properties. Furthermore, they do not always ensure that all impurities are eliminated. Sustainable and cutting-edge technology has developed over the last few decades. Biological soil remediation solutions, also known as soft remediation options, are being developed to integrate, namely efficient removal of soil contaminants, mitigation of soil ecotoxicity, and reduction of legally and ethically mandated hazards to the environment and human health. Soil remediation methods should not only repair soil health and provide necessary system services but also reduce noxious waste concentrations in the soil to below regulatory limits. The microorganisms have shown promise in the clean-up of soils contaminated with radioactive contaminants, heavy metals, chemical fertilizers in excess, trichlorethylene, trinitrotoluene, herbicides such as atrazine, and organophosphates. The cost of cleaning up environmental pollutants with eco-friendly technology is inexpensive when compared to other approaches, including conventional ones. The focus of the current manuscript is on using beneficial bacteria to clean up polluted farmland to ensure the longevity of the subsequent generation.

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Arbuscular mycorrhiza and Aspergillus terreus inoculation along with compost amendment enhance the phytoremediation of Cr-rich technosol by Solanum lycopersicum under field conditions

Cited by 21 publications

References 46 publications

Arbuscular Mycorrhizal Fungi Are an Influential Factor in Improving the Phytoremediation of Arsenic, Cadmium, Lead, and Chromium

Arbuscular Mycorrhizal Fungi Are an Influential Factor in Improving the Phytoremediation of Arsenic, Cadmium, Lead, and Chromium

Inoculation With Indigenous Rhizosphere Microbes Enhances Aboveground Accumulation of Lead in Salix integra Thunb. by Improving Transport Coefficients

Advantageous of Beneficial Microbes for Bioremediation of Adulterated Global-Cultivated Soils

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