Phytoremediation effect of Medicago sativa colonized by Piriformospora indica in the phenanthrene and cadmium co-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 chemi...
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| Format: | Article |
| Language: | English |
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BMC
2020-04-01
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| Series: | BMC Biotechnology |
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| Online Access: | http://link.springer.com/article/10.1186/s12896-020-00613-2 |
| _version_ | 1819198823397851136 |
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| author | Liang Li Pengyue Zhu Xiaoyang Wang Zhenhua Zhang |
| author_facet | Liang Li Pengyue Zhu Xiaoyang Wang Zhenhua Zhang |
| author_sort | Liang Li |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-12-23T03:06:34Z |
| format | Article |
| id | doaj.art-c79ce892f898475db419dbf6667182dd |
| institution | Directory Open Access Journal |
| issn | 1472-6750 |
| language | English |
| last_indexed | 2024-12-23T03:06:34Z |
| publishDate | 2020-04-01 |
| publisher | BMC |
| record_format | Article |
| series | BMC Biotechnology |
| spelling | doaj.art-c79ce892f898475db419dbf6667182dd2022-12-21T18:02:19ZengBMCBMC Biotechnology1472-67502020-04-0120111410.1186/s12896-020-00613-2Phytoremediation effect of Medicago sativa colonized by Piriformospora indica in the phenanthrene and cadmium co-contaminated soilLiang Li0Pengyue Zhu1Xiaoyang Wang2Zhenhua Zhang3School of Chemical Engineering and Technology, Hebei University of TechnologySchool of Chemical Engineering and Technology, Hebei University of TechnologySchool of Chemical Engineering and Technology, Hebei University of TechnologySchool of Chemical Engineering and Technology, Hebei University of TechnologyAbstract 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.http://link.springer.com/article/10.1186/s12896-020-00613-2Piriformospora indicaMedicago sativaPhytoremediationSoil-contaminationBioavailabilityRhizosphere |
| spellingShingle | Liang Li Pengyue Zhu Xiaoyang Wang Zhenhua Zhang Phytoremediation effect of Medicago sativa colonized by Piriformospora indica in the phenanthrene and cadmium co-contaminated soil BMC Biotechnology Piriformospora indica Medicago sativa Phytoremediation Soil-contamination Bioavailability Rhizosphere |
| title | Phytoremediation effect of Medicago sativa colonized by Piriformospora indica in the phenanthrene and cadmium co-contaminated soil |
| title_full | Phytoremediation effect of Medicago sativa colonized by Piriformospora indica in the phenanthrene and cadmium co-contaminated soil |
| title_fullStr | Phytoremediation effect of Medicago sativa colonized by Piriformospora indica in the phenanthrene and cadmium co-contaminated soil |
| title_full_unstemmed | Phytoremediation effect of Medicago sativa colonized by Piriformospora indica in the phenanthrene and cadmium co-contaminated soil |
| title_short | Phytoremediation effect of Medicago sativa colonized by Piriformospora indica in the phenanthrene and cadmium co-contaminated soil |
| title_sort | phytoremediation effect of medicago sativa colonized by piriformospora indica in the phenanthrene and cadmium co contaminated soil |
| topic | Piriformospora indica Medicago sativa Phytoremediation Soil-contamination Bioavailability Rhizosphere |
| url | http://link.springer.com/article/10.1186/s12896-020-00613-2 |
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