Mechanism of microplastics in the reduction of cadmium toxicity in tomato
Soil pollution by microplastics (MPs) and cadmium (Cd) poses significant threats to agricultural production, yet their combined toxicity and underlying mechanisms remain poorly understood. Here, we examined the effects of three types of MPs-polyethylene (PE), polyvinyl chloride (PVC) and polypropyle...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-01-01
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| Series: | Ecotoxicology and Environmental Safety |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S014765132401697X |
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| author | Rongchao Yang Long Cheng Zhenqin Li Yilan Cui Jiawei Liu Duo Xu Sijia Liu Zhong Lin Jiugeng Chen Yueqin Zhang |
| author_facet | Rongchao Yang Long Cheng Zhenqin Li Yilan Cui Jiawei Liu Duo Xu Sijia Liu Zhong Lin Jiugeng Chen Yueqin Zhang |
| author_sort | Rongchao Yang |
| collection | DOAJ |
| description | Soil pollution by microplastics (MPs) and cadmium (Cd) poses significant threats to agricultural production, yet their combined toxicity and underlying mechanisms remain poorly understood. Here, we examined the effects of three types of MPs-polyethylene (PE), polyvinyl chloride (PVC) and polypropylene (PP)-with particle sizes of 150 μm and 10 μm, in combination with Cd stress (5 mg/kg) on tomato (Solanum lycopersicum L.) growth. The results revealed that the combined treatment of MPs effectively alleviated the inhibitory effect of Cd stress. Moreover, Ionome analysis demonstrated that the combined treatment alleviated ionic toxicity by reducing the accumulation of heavy metals (e.g., Al, Pb, Cd, Cr), restoring the uptake of essential elements (e.g., Mg, Ca, Mn), and minimizing the excessive absorption of trace elements (e.g., Mo, Ni) and ultra-trace elements (e.g., Co, Ag, Sn) compared to Cd stress alone. Transcriptome analysis further revealed that combined treatment reprogrammed key pathways, including cell wall synthesis, antioxidant systems, Cd transport, hormone signaling, nitrogen metabolism, and glutathione metabolism, to alleviate Cd toxicity. This study provides novel insights into the interaction between MPs and environmental pollutants, highlighting their role in modulating plant stress responses. |
| format | Article |
| id | doaj-art-f08de34b99ec4670b26222dabcfec2a5 |
| institution | Kabale University |
| issn | 0147-6513 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ecotoxicology and Environmental Safety |
| spelling | doaj-art-f08de34b99ec4670b26222dabcfec2a52025-01-23T05:25:53ZengElsevierEcotoxicology and Environmental Safety0147-65132025-01-01289117621Mechanism of microplastics in the reduction of cadmium toxicity in tomatoRongchao Yang0Long Cheng1Zhenqin Li2Yilan Cui3Jiawei Liu4Duo Xu5Sijia Liu6Zhong Lin7Jiugeng Chen8Yueqin Zhang9College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang 524088, ChinaCollege of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang 524088, ChinaCollege of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang 524088, ChinaCollege of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang 524088, ChinaCollege of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang 524088, ChinaCollege of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang 524088, ChinaCollege of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang 524088, ChinaSchool of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, ChinaInstrumental Analysis Center, Shanghai Jiao Tong University, Shanghai 200030, ChinaCollege of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang 524088, China; Corresponding author.Soil pollution by microplastics (MPs) and cadmium (Cd) poses significant threats to agricultural production, yet their combined toxicity and underlying mechanisms remain poorly understood. Here, we examined the effects of three types of MPs-polyethylene (PE), polyvinyl chloride (PVC) and polypropylene (PP)-with particle sizes of 150 μm and 10 μm, in combination with Cd stress (5 mg/kg) on tomato (Solanum lycopersicum L.) growth. The results revealed that the combined treatment of MPs effectively alleviated the inhibitory effect of Cd stress. Moreover, Ionome analysis demonstrated that the combined treatment alleviated ionic toxicity by reducing the accumulation of heavy metals (e.g., Al, Pb, Cd, Cr), restoring the uptake of essential elements (e.g., Mg, Ca, Mn), and minimizing the excessive absorption of trace elements (e.g., Mo, Ni) and ultra-trace elements (e.g., Co, Ag, Sn) compared to Cd stress alone. Transcriptome analysis further revealed that combined treatment reprogrammed key pathways, including cell wall synthesis, antioxidant systems, Cd transport, hormone signaling, nitrogen metabolism, and glutathione metabolism, to alleviate Cd toxicity. This study provides novel insights into the interaction between MPs and environmental pollutants, highlighting their role in modulating plant stress responses.http://www.sciencedirect.com/science/article/pii/S014765132401697XMicroplasticsCdCombined stressIonomeTranscriptome |
| spellingShingle | Rongchao Yang Long Cheng Zhenqin Li Yilan Cui Jiawei Liu Duo Xu Sijia Liu Zhong Lin Jiugeng Chen Yueqin Zhang Mechanism of microplastics in the reduction of cadmium toxicity in tomato Ecotoxicology and Environmental Safety Microplastics Cd Combined stress Ionome Transcriptome |
| title | Mechanism of microplastics in the reduction of cadmium toxicity in tomato |
| title_full | Mechanism of microplastics in the reduction of cadmium toxicity in tomato |
| title_fullStr | Mechanism of microplastics in the reduction of cadmium toxicity in tomato |
| title_full_unstemmed | Mechanism of microplastics in the reduction of cadmium toxicity in tomato |
| title_short | Mechanism of microplastics in the reduction of cadmium toxicity in tomato |
| title_sort | mechanism of microplastics in the reduction of cadmium toxicity in tomato |
| topic | Microplastics Cd Combined stress Ionome Transcriptome |
| url | http://www.sciencedirect.com/science/article/pii/S014765132401697X |
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