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Hua Z, Zhang T, Luo J, Bai H, Ma S, Qiang H, Guo X. Internalization, physiological responses and molecular mechanisms of lettuce to polystyrene microplastics of different sizes: Validation of simulated soilless culture. J Hazard Mater 2024; 462:132710. [PMID: 37832437 DOI: 10.1016/j.jhazmat.2023.132710] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Revised: 09/12/2023] [Accepted: 10/03/2023] [Indexed: 10/15/2023]
Abstract
Microplastics (MPs) exists widely in the environment, and the resulting pollution of MPs has become a global environmental problem. Plants can absorb MPs through their roots. However, studies on the mechanism of the effect of root exposure to different size MPs on vegetables are limited. Here, we use Polystyrene (PS) MPs with different particle sizes to investigate the internalization, physiological response and molecular mechanism of lettuce to MPs. MPs may accumulate in large amounts in lettuce roots and migrate to the aboveground part through the vascular bundle, while small particle size MPs (SMPs, 100 nm) have stronger translocation ability than large particle size MPs (LMPs, 500 nm). MPs can cause physiological and biochemical responses and transcriptome changes in lettuce. SMPs and LMPs resulted in reduced biomass (38.27 % and 48.22 % reduction in fresh weight); caused oxidative stress (59.33 % and 47.74 % upregulation of SOD activity in roots) and differential gene expression (605 and 907 DEGs). Signal transduction, membrane transport and alteration of synthetic and metabolic pathways may be the main causes of physiological toxicity of lettuce. Our study provides important information for understanding the behavior and fate of MPs in edible vegetables, especially the physiological toxicity of MPs to edible vegetables, in order to assess the potential threat of MPs to food safety and agricultural sustainable development.
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Affiliation(s)
- Zhengdong Hua
- College of Natural Resources and Environment, Northwest A & F University, Yangling 712100, China
| | - Tianli Zhang
- College of Natural Resources and Environment, Northwest A & F University, Yangling 712100, China
| | - Junqi Luo
- College of Natural Resources and Environment, Northwest A & F University, Yangling 712100, China
| | - Haoduo Bai
- College of Natural Resources and Environment, Northwest A & F University, Yangling 712100, China
| | - Sirui Ma
- College of Natural Resources and Environment, Northwest A & F University, Yangling 712100, China
| | - Hong Qiang
- College of Natural Resources and Environment, Northwest A & F University, Yangling 712100, China; Key Laboratory of Plant Nutrition and the Agro-environment in Northwest China, Ministry of Agriculture, Yangling 712100, China
| | - Xuetao Guo
- College of Natural Resources and Environment, Northwest A & F University, Yangling 712100, China; Key Laboratory of Plant Nutrition and the Agro-environment in Northwest China, Ministry of Agriculture, Yangling 712100, China.
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Teófilo TMDS, Mendes KF, Fernandes BCC, Oliveira FSD, Silva TS, Takeshita V, Souza MDF, Tornisielo VL, Silva DV. Phytoextraction of diuron, hexazinone, and sulfometuron-methyl from the soil by green manure species. Chemosphere 2020; 256:127059. [PMID: 32447109 DOI: 10.1016/j.chemosphere.2020.127059] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 05/07/2020] [Accepted: 05/10/2020] [Indexed: 06/11/2023]
Abstract
The herbicides diuron, hexazinone, and sulfometuron-methyl present a potential risk of environmental contamination and are widely used for weed control in sugarcane cultivation. Our objectives were to measure the tolerance of Canavalia ensiformes (L.) DC., Stilizobium aterrimum L., Raphanus sativus L., Crotalaria spectabilis Röth, Lupinus albus L., and Pennisetum glaucum (L.) R. Br. To the herbicides diuron, hexazinone, and sulfometuron-methyl to assess the capacity of these species to extract and accumulate the herbicides in their tissues. Before sowing the green manure species, the soils were individually contaminated with the three 14C-radiolabeled herbicides. 14C-diuron and 14C-sulfometuron-methyl showed higher values remaining in the soil (>90%) for all species of green manure compared to hexazinone (<80%). The green manure species analyzed showed greater potential to remedy soils contaminated with hexazinone than the other herbicides. C. ensiformes showed high phytoextraction of hexazinone when compared to the other species, removing 11.2% of the pollutant from the soil, followed by L. albus (8.6%), S. aterrimum (7.3%), R. sativus (4.8%), C. spectabilis (2.5%), and P. glaucum (1.1%). The results indicate that the phytoextraction of diuron, hexazinone and sulfometuron-methyl is dependent on the species of green manure and can be an important tool for the decontamination of areas polluted by these herbicides.
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Affiliation(s)
- Taliane Maria da Silva Teófilo
- Universidade Federal Rural Do Semi-Árido, Centro de Ciências Vegetais, Departamento de Ciências Agronômicas e Florestais, Av. Francisco Mota, 572, Costa e Silva, CEP 59625-900, Mossoró, RN, Brazil.
| | | | - Bruno Caio Chaves Fernandes
- Universidade Federal Rural Do Semi-Árido, Centro de Ciências Vegetais, Departamento de Ciências Agronômicas e Florestais, Av. Francisco Mota, 572, Costa e Silva, CEP 59625-900, Mossoró, RN, Brazil
| | - Fernando Sarmento de Oliveira
- Universidade Federal Rural Do Semi-Árido, Centro de Ciências Vegetais, Departamento de Ciências Agronômicas e Florestais, Av. Francisco Mota, 572, Costa e Silva, CEP 59625-900, Mossoró, RN, Brazil
| | - Tatiane Severo Silva
- Universidade Federal Rural Do Semi-Árido, Centro de Ciências Vegetais, Departamento de Ciências Agronômicas e Florestais, Av. Francisco Mota, 572, Costa e Silva, CEP 59625-900, Mossoró, RN, Brazil
| | - Vanessa Takeshita
- Centro de Energia Nuclear Na Agricultura, Piracicaba, São Paulo, Brazil
| | - Matheus de Freitas Souza
- Universidade Federal Rural Do Semi-Árido, Centro de Ciências Vegetais, Departamento de Ciências Agronômicas e Florestais, Av. Francisco Mota, 572, Costa e Silva, CEP 59625-900, Mossoró, RN, Brazil
| | | | - Daniel Valadão Silva
- Universidade Federal Rural Do Semi-Árido, Centro de Ciências Vegetais, Departamento de Ciências Agronômicas e Florestais, Av. Francisco Mota, 572, Costa e Silva, CEP 59625-900, Mossoró, RN, Brazil
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Zhong L, Zhang Y, Liu H, Sun G, Chen R, Song S. Agrobacterium-mediated transient expression via root absorption in flowering Chinese cabbage. Springerplus 2016; 5:1825. [PMID: 27818863 PMCID: PMC5074944 DOI: 10.1186/s40064-016-3518-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Accepted: 10/11/2016] [Indexed: 12/31/2022]
Abstract
Background Because most transient transformation techniques are inadequate for functional genomics research in roots, we aimed to develop a simple and efficient Agrobacterium-mediated transient transformation system that utilized root absorption for research in flowering Chinese cabbage. Results Both semi-quantitative and fluorescent quantitative RT-PCR confirmed that the target gene BcAMT1;3 was more highly expressed in plants that were infected with the transformed Agrobacterium strain (EHA105-p35S-BcAMT1;3) than in control plants that were infected with the control strain (EHA105-p35S). Furthermore, GUS staining analysis conformed the availability of this transient transformation system. In addition, we found that the highest transformation efficiency was achieved using an Agrobacterium cell density of OD600 = 0.3 for 3–6 h, without hyperosmotic pretreatment, and under these conditions, the peak transformation efficiency was observed at 2 and 4 d after infection. Conclusions The transformation method developed by the present study is simple and convenient, since no special equipment is required, and since the method causes no damage, the plants can be used for subsequent experiments.
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Affiliation(s)
- Lihua Zhong
- College of Horticulture, South China Agricultural University, Guangzhou, 510642 China
| | - Yuepeng Zhang
- College of Horticulture, South China Agricultural University, Guangzhou, 510642 China
| | - Houcheng Liu
- College of Horticulture, South China Agricultural University, Guangzhou, 510642 China
| | - Guangwen Sun
- College of Horticulture, South China Agricultural University, Guangzhou, 510642 China
| | - Riyuan Chen
- College of Horticulture, South China Agricultural University, Guangzhou, 510642 China
| | - Shiwei Song
- College of Horticulture, South China Agricultural University, Guangzhou, 510642 China
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