Effects of different microplastics on the physicochemical properties and microbial diversity of rice rhizosphere soil
Biodegradable plastics, as alternatives to conventional waste plastics, are increasingly applied across various fields. However, the ecological risks associated with the widespread use of biodegradable plastics remain unclear. Additionally, biodegradable plastics tend to age in the environment, lead...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2025-01-01
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| Series: | Frontiers in Microbiology |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fmicb.2024.1513890/full |
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| author | Sheng Lai Sheng Lai Sheng Lai Cunzhong Fan Ping Yang Ping Yang Yuanyuan Fang Yuanyuan Fang Lanting Zhang Lanting Zhang Minfei Jian Guofei Dai Guofei Dai Jutao Liu Jutao Liu Huilin Yang Liqin Shen Liqin Shen |
| author_facet | Sheng Lai Sheng Lai Sheng Lai Cunzhong Fan Ping Yang Ping Yang Yuanyuan Fang Yuanyuan Fang Lanting Zhang Lanting Zhang Minfei Jian Guofei Dai Guofei Dai Jutao Liu Jutao Liu Huilin Yang Liqin Shen Liqin Shen |
| author_sort | Sheng Lai |
| collection | DOAJ |
| description | Biodegradable plastics, as alternatives to conventional waste plastics, are increasingly applied across various fields. However, the ecological risks associated with the widespread use of biodegradable plastics remain unclear. Additionally, biodegradable plastics tend to age in the environment, leading to changes in their physicochemical properties. The ecological risks brought by the aging of microplastics have also been scarcely studied. In this study, we selected conventional microplastics (PE-MPs), biodegradable microplastics (PLA-MPs), and aged biodegradable microplastics (aging-PLA-MPs) to explore their effects on the rhizosphere soil environment of rice. The results showed that microplastics reduced the soil N and P content, with PE slightly increasing the DOC content, while PLA and aging-PLA significantly increased DOC by 21.13 and 24.04%, respectively. Microplastics also decreased soil enzyme activity, with aging-PLA having a somewhat stimulatory effect on enzyme activity compared to PLA. Furthermore, microplastics reduced the soil bacterial diversity index and altered the community structure of dominant bacterial species, with DOC content and FDA hydrolase being the main factors influencing the soil bacterial community. Bacteria were most sensitive to PLA, and the stability of the bacterial microbial network structure decreased, although aging reduced the negative impact of PLA on the bacterial community. This study contributes to our understanding of the ecological risks posed by biodegradable plastics and their aging processes on the environment. |
| format | Article |
| id | doaj-art-83322275c706494894113c853e53ed3c |
| institution | Kabale University |
| issn | 1664-302X |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Microbiology |
| spelling | doaj-art-83322275c706494894113c853e53ed3c2025-01-22T15:41:35ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2025-01-011510.3389/fmicb.2024.15138901513890Effects of different microplastics on the physicochemical properties and microbial diversity of rice rhizosphere soilSheng Lai0Sheng Lai1Sheng Lai2Cunzhong Fan3Ping Yang4Ping Yang5Yuanyuan Fang6Yuanyuan Fang7Lanting Zhang8Lanting Zhang9Minfei Jian10Guofei Dai11Guofei Dai12Jutao Liu13Jutao Liu14Huilin Yang15Liqin Shen16Liqin Shen17Jiangxi Academy of Water Science and Engineering, Nanchang, ChinaCollege of Life Science, Jiangxi Normal University, Nanchang, ChinaJiangxi Provincial Technology Innovation Center for Ecological Water Engineering in Poyang Lake Basin, Nanchang, ChinaCollege of Life Science, Jiangxi Normal University, Nanchang, ChinaJiangxi Academy of Water Science and Engineering, Nanchang, ChinaJiangxi Provincial Technology Innovation Center for Ecological Water Engineering in Poyang Lake Basin, Nanchang, ChinaJiangxi Academy of Water Science and Engineering, Nanchang, ChinaJiangxi Provincial Technology Innovation Center for Ecological Water Engineering in Poyang Lake Basin, Nanchang, ChinaJiangxi Academy of Water Science and Engineering, Nanchang, ChinaJiangxi Provincial Technology Innovation Center for Ecological Water Engineering in Poyang Lake Basin, Nanchang, ChinaCollege of Life Science, Jiangxi Normal University, Nanchang, ChinaJiangxi Academy of Water Science and Engineering, Nanchang, ChinaJiangxi Provincial Technology Innovation Center for Ecological Water Engineering in Poyang Lake Basin, Nanchang, ChinaJiangxi Academy of Water Science and Engineering, Nanchang, ChinaJiangxi Provincial Technology Innovation Center for Ecological Water Engineering in Poyang Lake Basin, Nanchang, ChinaCollege of Life Science, Jiangxi Normal University, Nanchang, ChinaJiangxi Academy of Water Science and Engineering, Nanchang, ChinaJiangxi Provincial Technology Innovation Center for Ecological Water Engineering in Poyang Lake Basin, Nanchang, ChinaBiodegradable plastics, as alternatives to conventional waste plastics, are increasingly applied across various fields. However, the ecological risks associated with the widespread use of biodegradable plastics remain unclear. Additionally, biodegradable plastics tend to age in the environment, leading to changes in their physicochemical properties. The ecological risks brought by the aging of microplastics have also been scarcely studied. In this study, we selected conventional microplastics (PE-MPs), biodegradable microplastics (PLA-MPs), and aged biodegradable microplastics (aging-PLA-MPs) to explore their effects on the rhizosphere soil environment of rice. The results showed that microplastics reduced the soil N and P content, with PE slightly increasing the DOC content, while PLA and aging-PLA significantly increased DOC by 21.13 and 24.04%, respectively. Microplastics also decreased soil enzyme activity, with aging-PLA having a somewhat stimulatory effect on enzyme activity compared to PLA. Furthermore, microplastics reduced the soil bacterial diversity index and altered the community structure of dominant bacterial species, with DOC content and FDA hydrolase being the main factors influencing the soil bacterial community. Bacteria were most sensitive to PLA, and the stability of the bacterial microbial network structure decreased, although aging reduced the negative impact of PLA on the bacterial community. This study contributes to our understanding of the ecological risks posed by biodegradable plastics and their aging processes on the environment.https://www.frontiersin.org/articles/10.3389/fmicb.2024.1513890/fullmicroplasticsbiodegradabilityagingphysicochemical propertiesrhizospheremicroorganisms |
| spellingShingle | Sheng Lai Sheng Lai Sheng Lai Cunzhong Fan Ping Yang Ping Yang Yuanyuan Fang Yuanyuan Fang Lanting Zhang Lanting Zhang Minfei Jian Guofei Dai Guofei Dai Jutao Liu Jutao Liu Huilin Yang Liqin Shen Liqin Shen Effects of different microplastics on the physicochemical properties and microbial diversity of rice rhizosphere soil Frontiers in Microbiology microplastics biodegradability aging physicochemical properties rhizosphere microorganisms |
| title | Effects of different microplastics on the physicochemical properties and microbial diversity of rice rhizosphere soil |
| title_full | Effects of different microplastics on the physicochemical properties and microbial diversity of rice rhizosphere soil |
| title_fullStr | Effects of different microplastics on the physicochemical properties and microbial diversity of rice rhizosphere soil |
| title_full_unstemmed | Effects of different microplastics on the physicochemical properties and microbial diversity of rice rhizosphere soil |
| title_short | Effects of different microplastics on the physicochemical properties and microbial diversity of rice rhizosphere soil |
| title_sort | effects of different microplastics on the physicochemical properties and microbial diversity of rice rhizosphere soil |
| topic | microplastics biodegradability aging physicochemical properties rhizosphere microorganisms |
| url | https://www.frontiersin.org/articles/10.3389/fmicb.2024.1513890/full |
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