scholarly journals Phytoremediation effect of Medicago sativa colonized by Piriformospora indica in the phenanthrene and cadmium co-contaminated soil

2020 ◽  
Author(s):  
Liang Li ◽  
Pengyue Zhu ◽  
Xiaoyang Wang ◽  
Zhenhua Zhang
Keyword(s):  
Medicago Sativa ◽  
Contaminated Soil ◽  
Chemical Speciation ◽  
Cadmium Accumulation ◽  
Piriformospora Indica ◽  
Plant Tolerance ◽  
Soil P ◽  
Psii Photochemistry ◽  
Polycyclic Aromatic ◽  
Cadmium Contaminated Soil

Abstract Background: The coexistence of polycyclic aromatic hydrocarbons (PAHs) and heavy metals has deleterious effects on environmental quality. Few reports have studied the mechanisms of plant inoculation with Piriformospora indica to remediate PAH-metal co-contaminated soil by analyzing the chemical speciation of the contaminants. This study investigated the influence of the inoculation of Medicago sativa with P. indica to remediate soil co-contaminated with phenanthrene (a kind of PAH) and cadmium (a heavy metal) by analyzing plant growth, physiological parameters and chemical speciation in rhizosphere and nonrhizosphere soils. Results: The presence of P. indica significantly increased plant tolerance, chlorophyll a, chlorophyll b, maximum quantum efficiency of PSII photochemistry and electron transport rate values in phenanthrene- and/or cadmium-contaminated soil. P. indica inoculation in M. sativa roots increased fluorescein diacetate activities in soils contaminated with phenanthrene, cadmium or both, especially in the nonrhizosphere. The presence of phenanthrene prevented the inoculated plant from accumulating cadmium to some extent, whereas the presence of cadmium did not prevent the degradation of phenanthrene in either the rhizosphere or the nonrhizosphere after P. indica colonization. Although the low bioavailability of cadmium in the rhizosphere restricted its transportation into the stem, P. indica colonization in plants effectively increased cadmium accumulation in roots in soil co-contaminated with cadmium and phenanthrene. Conclusions: In conclusion, this work provides a theoretical basis for the use of P. indica combined with M. sativa for the remediation of PAH-metal co-contaminated soil.

scholarly journals Phytoremediation effect of Medicago sativa colonized by Piriformospora indica in the phenanthrene and cadmium co-contaminated soil

2020 ◽  
Author(s):  
Liang Li ◽  
Pengyue Zhu ◽  
Xiaoyang Wang ◽  
Zhenhua Zhang
Keyword(s):  
Medicago Sativa ◽  
Contaminated Soil ◽  
Chemical Speciation ◽  
Cadmium Accumulation ◽  
Piriformospora Indica ◽  
Plant Tolerance ◽  
Soil P ◽  
Psii Photochemistry ◽  
Polycyclic Aromatic ◽  
Cadmium Contaminated Soil

Abstract Background: The coexistence of polycyclic aromatic hydrocarbons (PAHs) and heavy metals has deleterious effects on environmental quality. Few reports have studied the mechanisms of plant inoculation with Piriformospora indica to remediate PAH-metal co-contaminated soil by analyzing the chemical speciation of the contaminants. This study investigated the influence of the inoculation of Medicago sativa with P . indica to remediate soil co-contaminated with phenanthrene (a kind of PAH) and cadmium (a heavy metal) by analyzing plant growth, physiological parameters and chemical speciation in rhizosphere and nonrhizosphere soils. Results: The presence of P. indica significantly increased plant tolerance, chlorophyll a , chlorophyll b , maximum quantum efficiency of PSII photochemistry and electron transport rate values in phenanthrene- and/or cadmium-contaminated soil. P. indica inoculation in M. sativa roots increased fluorescein diacetate activities in soils contaminated with phenanthrene, cadmium or both, especially in the nonrhizosphere. The presence of phenanthrene prevented the inoculated plant from accumulating cadmium to some extent, whereas the presence of cadmium did not prevent the degradation of phenanthrene in either the rhizosphere or the nonrhizosphere after P. indica colonization. Although the low bioavailability of cadmium in the rhizosphere restricted its transportation into the stem, P. indica colonization in plants effectively increased cadmium accumulation in roots in soil co-contaminated with cadmium and phenanthrene. Conclusions: In conclusion, this work provides a theoretical basis for the use of P. indica combined with M. sativa for the remediation of PAH-metal co-contaminated soil.

scholarly journals Phytoremediation effect of Medicago sativa colonized by Piriformospora indica in the phenanthrene and cadmium co-contaminated soil

2020 ◽  
Author(s):  
Liang Li ◽  
Pengyue Zhu ◽  
Xiaoyang Wang ◽  
Zhenhua Zhang
Keyword(s):  
Medicago Sativa ◽  
Contaminated Soil ◽  
Chemical Speciation ◽  
Cadmium Accumulation ◽  
Piriformospora Indica ◽  
Plant Tolerance ◽  
Psii Photochemistry ◽  
Polycyclic Aromatic ◽  
Cadmium Contaminated Soil ◽  
Quantum Efficiency Of Psii

Abstract Background: The coexistence of polycyclic aromatic hydrocarbons (PAHs) and heavy metals has deleterious effects on environmental quality. Few reports have studied the mechanisms of plant inoculation with Piriformospora indica to remediate PAH-metal co-contaminated soil by analyzing the chemical speciation of the contaminants. This study investigated the influence of the inoculation of Medicago sativa with P. indica to remediate soil co-contaminated with phenanthrene (a kind of PAH) and cadmium (a heavy metal) by analyzing plant growth, physiological parameters and chemical speciation in rhizosphere and nonrhizosphere soils.Results: The presence of P. indica significantly increased plant tolerance, chlorophyll a, chlorophyll b, maximum quantum efficiency of PSII photochemistry and electron transport rate values in phenanthrene- and/or cadmium-contaminated soil. P. indica inoculation in M. sativa roots increased fluorescein diacetate activities in soils contaminated with phenanthrene, cadmium or both, especially in the nonrhizosphere. The presence of phenanthrene prevented the inoculated plant from accumulating cadmium to some extent, whereas the presence of cadmium did not prevent the degradation of phenanthrene in either the rhizosphere or the nonrhizosphere after P. indica colonization. Although the low bioavailability of cadmium in the rhizosphere restricted its transportation into the stem, P. indica colonization in plants effectively increased cadmium accumulation in roots in soil co-contaminated with cadmium and phenanthrene.Conclusions: In conclusion, this work provides a theoretical basis for the use of P. indica combined with M. sativa for the remediation of PAH-metal co-contaminated soil.

scholarly journals Phytoremediation effect of Medicago sativa colonized by Piriformospora indica in the phenanthrene and cadmium co-contaminated soil

2020 ◽  
Author(s):  
Liang Li ◽  
Pengyue Zhu ◽  
Xiaoyang Wang ◽  
Zhenhua Zhang
Keyword(s):  
Heavy Metals ◽  
Medicago Sativa ◽  
Contaminated Soil ◽  
Cadmium Accumulation ◽  
Piriformospora Indica ◽  
Soil P ◽  
Psii Photochemistry ◽  
Cadmium Contaminated Soil ◽  
Quantum Efficiency Of Psii

Abstract Background: Coexistence of polycylic aromatic hydrocarbons (PAHs) and heavy metals deleteriously threatens the quality of environmental health . Few reports uncover the mechanism of inoculation plants with Piriformospora indica for remediating PAH- m etal co-contaminated soil by analyzing the chemical speciations of contaminants . This study investigated the influence of inoculation Medicago sativa with P. indica to remediate phenanthrene (kind of PAHs ) , and cadmium (one of heavy metals ) co-contaminated soil by analyzing the plant growth, physiological parameters and chemical speciation in rhizosphere and non-rhizosphere . Results: T he presence of P. indica significantly increased plants tolerance, Chlorophyll a , Chlorophyll b , maximum quantum efficiency of PSII photochemistry and electron transport rate values in phenanthrene an d /or cadmium contaminated soil. P. indica inoculation in M edicago sativa root increased f luorescein diacetate activities in phenanthrene, cadmium and both of that co-contaminated soil, especially in non-rhizosphere . The presence of phenanthrene hindered the inoculated plant from accumulating cadmium to some extent ; Whereas the presence of cadmium did not hinder the degradation of phenanthrene in both rhizosphere and non-rhizosphere after P. indica colonization. Although the poor bioavailability of cadmium in rhizosphere restricted the transportation into stem, P. indica colonization in plant efficiently increased cadmium accumulation in root in cadmium and phenanthrene co-contaminated soil. Conclusions: In conclusion, t he work provides the theoretical basis that Piriformospora indica combined with Medicago sativa contributed to the remediation of PAH-Metal co-contaminated soil.

scholarly journals Phytoremediation effect of Medicago sativa colonized by Piriformospora indica in the phenanthrene and cadmium co-contaminated soil

2019 ◽  
Author(s):  
Liang Li ◽  
Pengyue Zhu ◽  
Xiaoyang Wang ◽  
Zhenhua Zhang
Keyword(s):  
Heavy Metals ◽  
Medicago Sativa ◽  
Contaminated Soil ◽  
Cadmium Accumulation ◽  
Piriformospora Indica ◽  
Rhizospheric Soil ◽  
Soil P ◽  
Psii Photochemistry ◽  
Cadmium Contaminated Soil

Abstract Background:Coexistence of polycylic aromatic hydrocarbons (PAHs) and heavy metals deleteriously threatens the quality of environmental health. Few reports uncover the mechanism of inoculation plants with Piriformospora indica for remediating PAH-metal co-contaminated soil by analyzing the chemical speciations of contaminants. This study investigated the influence of inoculation Medicago sativa with Piriformospora indica to remediate phenanthrene (kind of PAHs), and cadmium (one of heavy metals) co-contaminated soil by analyzing the plant growth, physiological parameters and chemical speciation in rhizospheric and non-rhizospheric soil. Results:The presence of P. indica significantly increased plants tolerance, Chlorophyll a, Chlorophyll b, maximum quantum efficiency of PSII photochemistry and electron transport rate values in phenanthrene and/or cadmium contaminated soil. P. indica inoculation in M. sativa root increased fluorescein diacetate activities in phenanthrene, cadmium and both of that co-contaminated soil, especially in non-rhezospheric soil. The presence of phenanthrene hindered the inoculated plant from accumulating cadmium to some extent; Whereas the presence of cadmium did not hinder the degradation of phenanthrene in both rhizospheric and non-rhizospheric soil after P. indica colonization. Although the poor bioavailability of cadmium in rhizospheric soil restricted the transportation into stem, P. indica colonization in plant efficiently increased cadmium accumulation in root in cadmium and phenanthrene co-contaminated soil. Conclusions: In conclusion, the work provides the theoretical basis that Piriformospora indica combined with Medicago sativa contributed to the remediation of PAH-Metal co-contaminated soil.

scholarly journals Phytoremediation effect of Medicago sativa colonized by Piriformospora indica in the phenanthrene and cadmium co-contaminated soil

2019 ◽  
Author(s):  
Liang Li ◽  
Pengyue Zhu ◽  
Xiaoyang Wang ◽  
Zhenhua Zhang
Keyword(s):  
Heavy Metals ◽  
Medicago Sativa ◽  
Contaminated Soil ◽  
Cadmium Accumulation ◽  
Piriformospora Indica ◽  
Soil P ◽  
Psii Photochemistry ◽  
Cadmium Contaminated Soil ◽  
Quantum Efficiency Of Psii

Abstract Background:Coexistence of polycylic aromatic hydrocarbons (PAHs) and heavy metals deleteriously threatens the quality of environmental health. Few reports uncover the mechanism of inoculation plants with Piriformospora indica for remediating PAH-metal co-contaminated soil by analyzing the chemical speciations of contaminants. This study investigated the influence of inoculation Medicago sativa with Piriformospora indica to remediate phenanthrene (kind of PAHs), and cadmium (one of heavy metals) co-contaminated soil by analyzing the plant growth, physiological parameters and chemical speciation in rhizosphere and non-rhizosphere. Results:The presence of P. indica significantly increased plants tolerance, Chlorophyll a, Chlorophyll b, maximum quantum efficiency of PSII photochemistry and electron transport rate values in phenanthrene and/or cadmium contaminated soil. P. indica inoculation in Medicago sativa root increased fluorescein diacetate activities in phenanthrene, cadmium and both of that co-contaminated soil, especially in non-rhizosphere. The presence of phenanthrene hindered the inoculated plant from accumulating cadmium to some extent; Whereas the presence of cadmium did not hinder the degradation of phenanthrene in both rhizosphere and non-rhizosphere after P. indica colonization. Although the poor bioavailability of cadmium in rhizosphere restricted the transportation into stem, P. indica colonization in plant efficiently increased cadmium accumulation in root in cadmium and phenanthrene co-contaminated soil. Conclusions: In conclusion, the work provides the theoretical basis that Piriformospora indica combined with Medicago sativa contributed to the remediation of PAH-Metal co-contaminated soil.

scholarly journals Phytoremediation effect of Medicago sativa colonized by Piriformospora indica in the phenanthrene and cadmium co-contaminated soil

2020 ◽  
Author(s):  
Liang Li ◽  
Pengyue Zhu ◽  
Xiaoyang Wang ◽  
Zhenhua Zhang
Keyword(s):  
Heavy Metals ◽  
Medicago Sativa ◽  
Contaminated Soil ◽  
Cadmium Accumulation ◽  
Piriformospora Indica ◽  
Soil P ◽  
Psii Photochemistry ◽  
Cadmium Contaminated Soil ◽  
Quantum Efficiency Of Psii

Abstract Background: Coexistence of polycylic aromatic hydrocarbons (PAHs) and heavy metals deleteriously threatens the quality of environmental health . F ew reports uncover the mechanism of inoculation plants with Piriformospora indica for remediating PAH- m etal co-contaminated soil by analyzing the chemical speciations of contaminants . This study investigated the influence of inoculation Medicago sativa with P. indica to remediate phenanthrene (kind of PAHs ) , and cadmium (one of heavy metals ) co-contaminated soil by analyzing the plant growth, physiological parameters and chemical speciation in rhizosphere and non-rhizosphere . Results: T he presence of P. indica significantly increased plants tolerance, Chlorophyll a , Chlorophyll b , maximum quantum efficiency of PSII photochemistry and electron transport rate values in phenanthrene an d /or cadmium contaminated soil. P. indica inoculation in M edicago sativa root increased f luorescein diacetate activities in phenanthrene, cadmium and both of that co-contaminated soil, especially in non-rhizosphere . The presence of phenanthrene hindered the inoculated plant from accumulating cadmium to some extent ; Whereas the presence of cadmium did not hinder the degradation of phenanthrene in both rhizosphere and non-rhizosphere after P. indica colonization. Although the poor bioavailability of cadmium in rhizosphere restricted the transportation into stem, P. indica colonization in plant efficiently increased cadmium accumulation in root in cadmium and phenanthrene co-contaminated soil. Conclusions: In conclusion, t he work provides the theoretical basis that Piriformospora indica combined with Medicago sativa contributed to the remediation of PAH-Metal co-contaminated soil.

Cadmium accumulation and apoplastic and symplastic transport in Boehmeria nivea (L.) Gaudich on cadmium-contaminated soil with the addition of EDTA or NTA

RSC Advances ◽  
2015 ◽  
Vol 5 (59) ◽  
pp. 47584-47591 ◽  
Author(s):  
Yicheng Yin ◽  
Yaqin Wang ◽  
Yunguo Liu ◽  
Guangming Zeng ◽  
Xinjiang Hu ◽  
...  
Keyword(s):  
Plant Species ◽  
Contaminated Soil ◽  
Cadmium Accumulation ◽  
Nitrilotriacetic Acid ◽  
Ethylene Diamine ◽  
Cd Accumulation ◽  
Symplastic Transport ◽  
Boehmeria Nivea ◽  
Tolerant Plant ◽  
Cadmium Contaminated Soil

A Cd-tolerant plant species named Boehmeria nivea (L.) Gaudich (ramie) was applied to study its Cd accumulation and translocation mechanisms with the addition of ethylene diamine tetracetic acid (EDTA) or nitrilotriacetic acid (NTA).

scholarly journals Study on cadmium accumulation characteristics of Solanum nigrum with different ploidies

2019 ◽  
Vol 136 ◽  
pp. 07012
Author(s):  
Yunmin Huan ◽  
Zhouyang Jiu ◽  
Huixuan Zhou ◽  
Haoran Zhang ◽  
Yong Huang ◽  
...  
Keyword(s):  
Contaminated Soil ◽  
Translocation Factor ◽  
Cadmium Accumulation ◽  
Solanum Nigrum ◽  
Pot Experiment ◽  
Accumulation Factor ◽  
Cadmium Content ◽  
Accumulation Characteristics ◽  
Cadmium Contaminated Soil

To study the cadmium accumulation characteristics of Solanum nigrum with different ploidies, the biomass, cadmium content and cadmium accumulation of diploid (Solanum photeinocarpum), tetraploid (Solanum photeinocarpum) and hexaploid (Solanum nigrum) were measured by a pot experiment. The results showed that the biomass of roots, stems, leaves and shoots of S. nigrum plants with different ploidy all ranked as follows: hexaploid > tetraploid > diploid. Cadmium content and cadmium accumulation in stems, leaves and shoots of hexaploid plants were significantly higher than those in tetraploid and diploid plants, and the cadmium translocation factor and translocation accumulation factor of hexaploid were the largest, too. Therefore, hexaploid S. nigrum had a highest ability to extract and transport cadmium, which can be used as an ideal plant for remediation of cadmium-contaminated soil.

scholarly journals Ecological Response in the Integrated Process of Biostimulation and Bioaugmentation of Diesel-Contaminated Soil

2021 ◽  
Vol 11 (14) ◽  
pp. 6305
Author(s):  
Xiaosen Li ◽  
Yakui Chen ◽  
Xianyuan Du ◽  
Jin Zheng ◽  
Diannan Lu ◽  
...  
Keyword(s):  
Nitrogen Cycle ◽  
Contaminated Soil ◽  
Quantitative Polymerase Chain Reaction ◽  
Chemical Properties ◽  
Gas Chromatography Mass Spectrometry ◽  
Functional Genes ◽  
Alkane Degradation ◽  
Degrading Bacteria ◽  
Polycyclic Aromatic ◽  
Amine Compounds

The study applied microbial molecular biological techniques to show that 2.5% to 3.0% (w/w) of diesel in the soil reduced the types and number of bacteria in the soil and destroyed the microbial communities responsible for the nitrogen cycle. In the meantime, the alkane degradation gene alkB and polycyclic aromatic hydrocarbons (PAHs) degradation gene nah evolved in the contaminated soil. We evaluated four different remediation procedures, in which the biostimulation-bioaugmentation joint process reached the highest degradation rate of diesel, 59.6 ± 0.25% in 27 days. Miseq sequencing and quantitative polymerase chain reaction (qPCR) showed that compared with uncontaminated soil, repaired soil provides abundant functional genes related to soil nitrogen cycle, and the most significant lifting effect on diesel degrading bacteria γ-proteobacteria. Quantitative analysis of degrading functional genes shows that degrading bacteria can be colonized in the soil. Gas chromatography-mass spectrometry (GC-MS) results show that the components remaining in the soil after diesel degradation are alcohol, lipids and a small amount of fatty amine compounds, which have very low toxicity to plants. In an on-site remediation experiment, the diesel content decreased from 2.7% ± 0.3 to 1.12% ± 0.1 after one month of treatment. The soil physical and chemical properties returned to normal levels, confirming the practicability of the biosimulation-bioaugmentation jointed remediation process.

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