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| Impacts of arbuscular mycorrhizal fungi on glomalin content in soils contaminated with phenanthrene |
| Received:April 03, 2016 |
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| KeyWord:arbuscular mycorrhizal fungus;glomalin;polycyclic aromatic hydrocarbons;rhizoremediation |
| Author Name | Affiliation | E-mail | | YANG Zhen-ya | Jiangsu Key Laboratory of Environmental Engineering, Jiangsu Provincial Academy of Environmental Science, Nanjing 210036, China
Institute of Organic Contaminant Control and Soil Remediation, Nanjing Agricultural University, Nanjing 210095, China | | | QUE Hong | Institute of Organic Contaminant Control and Soil Remediation, Nanjing Agricultural University, Nanjing 210095, China | | | ZHU Xue-zhu | Institute of Organic Contaminant Control and Soil Remediation, Nanjing Agricultural University, Nanjing 210095, China | | | ZHOU Zi-yan | Institute of Organic Contaminant Control and Soil Remediation, Nanjing Agricultural University, Nanjing 210095, China | | | CHEN Shuang | Institute of Organic Contaminant Control and Soil Remediation, Nanjing Agricultural University, Nanjing 210095, China | | | LING Wan-ting | Institute of Organic Contaminant Control and Soil Remediation, Nanjing Agricultural University, Nanjing 210095, China | lingwanting@njau.edu.cn |
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| Abstract: |
| Currently there is little information available about the responses of glomalin-related soil proteins (GRSP) to arbuscular mycor rhizal fungi (AMF) in soils contaminated with polycyclic aromatic hydrocarbons (PAHs). Here an investigation was conducted to examine the impacts of five AMFs on GRSP content in soils contaminated with phenanthrene as a representative PAH. The experimental AMFs were Acaulospora scrobculata (A.s), Glomus mosseae (G.m), Glomus intraradices (G.i), Glomus etunicatum (G.e) and Glomus constrictum (G.c). Host plant was alfalfa (Medicago sativa L.). These five AMFs had good colonization with alfalfa roots after 30~90 days. Inoculating AMFs enhanced GRSP content in phenanthrene-contaminated soils. Total extractable GRSP (T-GRSP) and easily extractable GRSP (EE-GRSP) were respectively 2.90~4.61 mg·g-1 and 0.87~1.33 mg·g-1 in soils inoculated with AMFs after 90-day cultivation, which were 26.1%~100.0% and 10.1%~68.4% higher than those in soils without AMF inoculation (CK). T-GRSP and EE-GRSP content in soils with AMF (G.i as a representative) was increased with cultivation time from 30 to 90 days, and significantly negatively correlated with residual concentrations of phenanthrene in soils. |
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