Response of Rhizosphere Microbial Community in High-PAH-Contaminated Soil Using <i>Echinacea purpurea</i> (L.) Moench
Under polycyclic aromatic hydrocarbon (PAH) pollution conditions (149.17–187.54 mg/kg), we had found the dominant flora of PAHs by observing the response of the soil microbial community after planting purple coneflower (<i>Echinacea purpurea</i> (L.) Moench). In this study, pot experimen...
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| Format: | Article |
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MDPI AG
2022-03-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/12/6/2973 |
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| author | Kaikai Liu Rui Liu Yao Xiao Mengting Song Xingyu Deng Tingting Dai Yu Wang Xin Wu |
| author_facet | Kaikai Liu Rui Liu Yao Xiao Mengting Song Xingyu Deng Tingting Dai Yu Wang Xin Wu |
| author_sort | Kaikai Liu |
| collection | DOAJ |
| description | Under polycyclic aromatic hydrocarbon (PAH) pollution conditions (149.17–187.54 mg/kg), we had found the dominant flora of PAHs by observing the response of the soil microbial community after planting purple coneflower (<i>Echinacea purpurea</i> (L.) Moench). In this study, pot experiments were conducted in a growth chamber to explore the changes in the rhizosphere microbial community structure during remediation of heavily PAH-contaminated soil using purple coneflower (<i>Echinacea purpurea</i> (L.) Moench). The phospholipid fatty acid (PLFA) content in the soil was measured during four periods before and after planting, and the results showed that: (i) at 120 days, <i>E. purpurea</i> can regulate the microbial community structure but had no significant effect on soil microbial diversity, (ii) at 120 days, the number of PLFAs characterizing actinomycetes, bacteria, and fungi increased, and both Gram-negative bacteria and Arbuscular mycorrhizal fungi (AMF) were significant with the observed PLFA level (<i>p</i> < 0.05), and (iii) the results indicated that AMF and Gram-negative bacteria represent some of the main factors that can promote the degradation of PAHs. The results obtained in this work are important to future research on PAH-degradation-functional genes and degradation mechanisms of the selection of flora. |
| first_indexed | 2024-03-09T13:51:20Z |
| format | Article |
| id | doaj.art-a48cd9fddc2a400c83d2fd6dea7a3894 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-09T13:51:20Z |
| publishDate | 2022-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-a48cd9fddc2a400c83d2fd6dea7a38942023-11-30T20:49:33ZengMDPI AGApplied Sciences2076-34172022-03-01126297310.3390/app12062973Response of Rhizosphere Microbial Community in High-PAH-Contaminated Soil Using <i>Echinacea purpurea</i> (L.) MoenchKaikai Liu0Rui Liu1Yao Xiao2Mengting Song3Xingyu Deng4Tingting Dai5Yu Wang6Xin Wu7School of Life Science and Biopharmaceutics, Shenyang Pharmaceutical University, Shenyang 110016, ChinaInstitute of Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, Kunming 650500, ChinaCollege of Resources and Civil Engineering, Northeastern University, Shenyang 110819, ChinaCollege of Resources and Civil Engineering, Northeastern University, Shenyang 110819, ChinaInstitute of International Rivers and Eco-Security, Yunnan University, Kunming 650500, ChinaInstitute of International Rivers and Eco-Security, Yunnan University, Kunming 650500, ChinaInstitute of International Rivers and Eco-Security, Yunnan University, Kunming 650500, ChinaSchool of Life Science and Biopharmaceutics, Shenyang Pharmaceutical University, Shenyang 110016, ChinaUnder polycyclic aromatic hydrocarbon (PAH) pollution conditions (149.17–187.54 mg/kg), we had found the dominant flora of PAHs by observing the response of the soil microbial community after planting purple coneflower (<i>Echinacea purpurea</i> (L.) Moench). In this study, pot experiments were conducted in a growth chamber to explore the changes in the rhizosphere microbial community structure during remediation of heavily PAH-contaminated soil using purple coneflower (<i>Echinacea purpurea</i> (L.) Moench). The phospholipid fatty acid (PLFA) content in the soil was measured during four periods before and after planting, and the results showed that: (i) at 120 days, <i>E. purpurea</i> can regulate the microbial community structure but had no significant effect on soil microbial diversity, (ii) at 120 days, the number of PLFAs characterizing actinomycetes, bacteria, and fungi increased, and both Gram-negative bacteria and Arbuscular mycorrhizal fungi (AMF) were significant with the observed PLFA level (<i>p</i> < 0.05), and (iii) the results indicated that AMF and Gram-negative bacteria represent some of the main factors that can promote the degradation of PAHs. The results obtained in this work are important to future research on PAH-degradation-functional genes and degradation mechanisms of the selection of flora.https://www.mdpi.com/2076-3417/12/6/2973PAHspurple coneflowerPLFAarbuscular mycorrhizal fungiGram-negative bacteria |
| spellingShingle | Kaikai Liu Rui Liu Yao Xiao Mengting Song Xingyu Deng Tingting Dai Yu Wang Xin Wu Response of Rhizosphere Microbial Community in High-PAH-Contaminated Soil Using <i>Echinacea purpurea</i> (L.) Moench Applied Sciences PAHs purple coneflower PLFA arbuscular mycorrhizal fungi Gram-negative bacteria |
| title | Response of Rhizosphere Microbial Community in High-PAH-Contaminated Soil Using <i>Echinacea purpurea</i> (L.) Moench |
| title_full | Response of Rhizosphere Microbial Community in High-PAH-Contaminated Soil Using <i>Echinacea purpurea</i> (L.) Moench |
| title_fullStr | Response of Rhizosphere Microbial Community in High-PAH-Contaminated Soil Using <i>Echinacea purpurea</i> (L.) Moench |
| title_full_unstemmed | Response of Rhizosphere Microbial Community in High-PAH-Contaminated Soil Using <i>Echinacea purpurea</i> (L.) Moench |
| title_short | Response of Rhizosphere Microbial Community in High-PAH-Contaminated Soil Using <i>Echinacea purpurea</i> (L.) Moench |
| title_sort | response of rhizosphere microbial community in high pah contaminated soil using i echinacea purpurea i l moench |
| topic | PAHs purple coneflower PLFA arbuscular mycorrhizal fungi Gram-negative bacteria |
| url | https://www.mdpi.com/2076-3417/12/6/2973 |
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