Remediation of phenanthrene phytotoxicity by the interaction of rice and endophytic fungus P. liquidambaris in practice

Phenanthrene cannot be effectively degraded in the agricultural production systems and it is greatly hazardous for food safety and human health. In our study, the remediation ability and mechanism of rice and endophytic fungus Phomopsis liquidambaris interaction on phenanthrene in the rice-growing e...

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Main Authors: Wan-Qiu Fu, Man Xu, Ai-Yue Zhang, Kai Sun, Chuan-Chao Dai, Yong Jia
Format: Article
Language:English
Published: Elsevier 2022-04-01
Series:Ecotoxicology and Environmental Safety
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S014765132200255X
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author Wan-Qiu Fu
Man Xu
Ai-Yue Zhang
Kai Sun
Chuan-Chao Dai
Yong Jia
author_facet Wan-Qiu Fu
Man Xu
Ai-Yue Zhang
Kai Sun
Chuan-Chao Dai
Yong Jia
author_sort Wan-Qiu Fu
collection DOAJ
description Phenanthrene cannot be effectively degraded in the agricultural production systems and it is greatly hazardous for food safety and human health. In our study, the remediation ability and mechanism of rice and endophytic fungus Phomopsis liquidambaris interaction on phenanthrene in the rice-growing environment were explored using laboratory and pot experiments. The results showed that plant-endophyte interaction had the potential to enhance remediation on phenanthrene contamination in the rice-growing environment. The content of phenanthrene in soil and rice (including leaves, roots, and grains) of the plant-endophyte interaction system was about 42% and 27% lower than of the non-inoculated treatment under 100 mg kg−1 treatment. The mechanism may be related to the improvement of plant growth, root activity, chlorophyll content, ATP energy supply, and antagonistic ability of rice to promote the absorption of phenanthrene in the rice-growing environment, and then the phenanthrene absorbed into the rice was degraded by improving the phenanthrene degrading enzyme activities and gene relative expression levels of P. liquidambaris during plant-endophyte interaction. Moreover, the plant-endophyte interaction system could also promote rice growth and increase rice yield by over 20% more than the control under 50 mg kg−1 treatment. This study indicated a promising potential of the plant-endophyte interaction system for pollution remediation in agriculture.
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spelling doaj.art-15fe0ca98747437db74c2c67361b7c292022-12-21T21:57:42ZengElsevierEcotoxicology and Environmental Safety0147-65132022-04-01235113415Remediation of phenanthrene phytotoxicity by the interaction of rice and endophytic fungus P. liquidambaris in practiceWan-Qiu Fu0Man Xu1Ai-Yue Zhang2Kai Sun3Chuan-Chao Dai4Yong Jia5Jiangsu Key Laboratory for Microbes and Functional Genomics, Jiangsu Engineering and Technology Research Center for Industrialization of Microbial Resources, College of Life Sciences, Nanjing Normal University, Nanjing 210023, ChinaNanjing Institute of Environmental Science, Ministry of Ecology and Environmental of China, Nanjing 210042, ChinaJiangsu Key Laboratory for Microbes and Functional Genomics, Jiangsu Engineering and Technology Research Center for Industrialization of Microbial Resources, College of Life Sciences, Nanjing Normal University, Nanjing 210023, ChinaJiangsu Key Laboratory for Microbes and Functional Genomics, Jiangsu Engineering and Technology Research Center for Industrialization of Microbial Resources, College of Life Sciences, Nanjing Normal University, Nanjing 210023, ChinaJiangsu Key Laboratory for Microbes and Functional Genomics, Jiangsu Engineering and Technology Research Center for Industrialization of Microbial Resources, College of Life Sciences, Nanjing Normal University, Nanjing 210023, China; Corresponding authors.Jiangsu Key Laboratory for Microbes and Functional Genomics, Jiangsu Engineering and Technology Research Center for Industrialization of Microbial Resources, College of Life Sciences, Nanjing Normal University, Nanjing 210023, China; Corresponding authors.Phenanthrene cannot be effectively degraded in the agricultural production systems and it is greatly hazardous for food safety and human health. In our study, the remediation ability and mechanism of rice and endophytic fungus Phomopsis liquidambaris interaction on phenanthrene in the rice-growing environment were explored using laboratory and pot experiments. The results showed that plant-endophyte interaction had the potential to enhance remediation on phenanthrene contamination in the rice-growing environment. The content of phenanthrene in soil and rice (including leaves, roots, and grains) of the plant-endophyte interaction system was about 42% and 27% lower than of the non-inoculated treatment under 100 mg kg−1 treatment. The mechanism may be related to the improvement of plant growth, root activity, chlorophyll content, ATP energy supply, and antagonistic ability of rice to promote the absorption of phenanthrene in the rice-growing environment, and then the phenanthrene absorbed into the rice was degraded by improving the phenanthrene degrading enzyme activities and gene relative expression levels of P. liquidambaris during plant-endophyte interaction. Moreover, the plant-endophyte interaction system could also promote rice growth and increase rice yield by over 20% more than the control under 50 mg kg−1 treatment. This study indicated a promising potential of the plant-endophyte interaction system for pollution remediation in agriculture.http://www.sciencedirect.com/science/article/pii/S014765132200255XEndophytic fungiDegradation mechanismPlant-endophyte interactionRemediationPot experiment
spellingShingle Wan-Qiu Fu
Man Xu
Ai-Yue Zhang
Kai Sun
Chuan-Chao Dai
Yong Jia
Remediation of phenanthrene phytotoxicity by the interaction of rice and endophytic fungus P. liquidambaris in practice
Ecotoxicology and Environmental Safety
Endophytic fungi
Degradation mechanism
Plant-endophyte interaction
Remediation
Pot experiment
title Remediation of phenanthrene phytotoxicity by the interaction of rice and endophytic fungus P. liquidambaris in practice
title_full Remediation of phenanthrene phytotoxicity by the interaction of rice and endophytic fungus P. liquidambaris in practice
title_fullStr Remediation of phenanthrene phytotoxicity by the interaction of rice and endophytic fungus P. liquidambaris in practice
title_full_unstemmed Remediation of phenanthrene phytotoxicity by the interaction of rice and endophytic fungus P. liquidambaris in practice
title_short Remediation of phenanthrene phytotoxicity by the interaction of rice and endophytic fungus P. liquidambaris in practice
title_sort remediation of phenanthrene phytotoxicity by the interaction of rice and endophytic fungus p liquidambaris in practice
topic Endophytic fungi
Degradation mechanism
Plant-endophyte interaction
Remediation
Pot experiment
url http://www.sciencedirect.com/science/article/pii/S014765132200255X
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