Article
Environmental Sciences
Gui-Li Yang, Meng -Meng Zheng, Hai -Min Liao, Ai-Juan Tan, Dan Feng, Shi-Ming Lv
Summary: The combined contamination of heavy metals and microplastics is widespread in freshwater environments. This study investigated the effects of single and combined stress of cadmium (Cd), polyethylene, and polypropylene on duckweed. The results showed that the combined stress reduced the toxicity of heavy metals to duckweed and improved the diversity and abundance of microbial communities in the rhizosphere.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2022)
Article
Environmental Sciences
Lin Yang, Qiuting Ren, Xu Ma, Mingwei Wang, Jinge Sun, Shen Wang, Xiaoyu Wu, Xinglin Chen, Chenxin Wang, Qingqing Li, Jinsheng Sun
Summary: This study found that riluzole (RIL) can enhance cadmium (Cd) tolerance in duckweed. RIL treatment alleviates leaf chlorosis and reduces root abscission, while decreasing Cd accumulation by regulating glutamate levels. Furthermore, RIL treatment leads to differential gene expression in duckweed under Cd stress.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2022)
Article
Environmental Sciences
Lin Yang, Xu Ma, Yuhan Guo, Yuman He, Yunwen Yang, Wenqiao Wang, Ziyi Xu, Zhaojiang Zuo, Ying Xue, Rui Yang, Bing Han, Jinsheng Sun
Summary: This study investigated the changes of endogenous acetylcholine (ACh) in duckweed under cadmium (Cd) stress, as well as the effects of exogenous ACh on Cd tolerance. The results showed that Cd stress promoted ACh content in duckweed and exogenous ACh supplementation enhanced Cd tolerance. It was also found that ACh could improve Cd resistance by promoting Cd uptake and accumulation, as well as modulating the Ca2+ signaling pathway. Additionally, plant-derived extracellular vesicles (PDEVs) were extracted during Cd stress. These findings provide important insights into the response of ACh during Cd stress.
ENVIRONMENTAL POLLUTION
(2023)
Article
Biochemistry & Molecular Biology
Gui-Li Yang, Lei Huang, Xiao Yang, Zhu Li, Hai-Min Liao, Kang Mao, Zhao-Ju Liu, He-Yan Geng, Qin Cao, Ai-Juan Tan
Summary: In this study, the growth, Cd enrichment, and antioxidant enzyme activity of duckweed were investigated under Cd stress. The results showed that both high-Cd-tolerance duckweed (HCD) and low-Cd-tolerance duckweed (LCD) strains hyper-enriched with Cd. Transcriptome analysis revealed significant differences in gene expression between HCD and LCD, with antioxidant system being significantly expressed in HCD but not in LCD. Alpha-linolenic acid metabolism likely plays an important role in Cd detoxification in duckweed. These findings contribute to the understanding of Cd tolerance mechanisms in hyperaccumulator plants and lay the foundation for future phytoremediation studies.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Biotechnology & Applied Microbiology
Congming Zou, Tianquan Lu, Ruting Wang, Peng Xu, Yifen Jing, Ruling Wang, Jin Xu, Jinpeng Wan
Summary: The study found that Fe3O4 and ZnO nanoparticles can promote the growth of tobacco under cadmium stress. Metabolomics analysis showed that these nanoparticles can regulate various metabolic processes, thereby promoting normal plant growth.
JOURNAL OF NANOBIOTECHNOLOGY
(2022)
Article
Plant Sciences
Weijuan Huang, Rui Kong, Lijun Chen, Yuxing An
Summary: This study investigated the effects of streptomycin on the physiological changes and uptake capability of duckweed. The results showed that high concentrations of streptomycin led to a decrease in duckweed biomass and total chlorophyll, but an increase in carotenoids. Antioxidative enzymes accumulated in the streptomycin groups, indicating a high ability of duckweed to remove streptomycin. Transcriptome analysis revealed a significant upregulation of secondary metabolic pathways in the streptomycin group.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Plant Sciences
Wenqiao Wang, Yunwen Yang, Xu Ma, Yuman He, Qiuting Ren, Yandi Huang, Jing Wang, Ying Xue, Rui Yang, Yuhan Guo, Jinge Sun, Lin Yang, Zhanpeng Sun
Summary: Dopamine (DA) has a positive influence on plants during abiotic stress, and this study reveals its function in plants under cadmium (Cd) stress. Exogenous DA supplementation can alleviate the yellowing of duckweed leaves under Cd stress, with 50 μM being the optimal concentration. It increases Cd content in duckweed by promoting the influx of Cd2+ and up-regulates photosynthesis-related genes. DA-induced Cd detoxification and accumulation are mediated by up-regulation of critical genes such as VIT1, MRP, and Rubisco. This study provides new insights into the application of DA in Cd phytoremediation in aquatic systems.
Article
Environmental Sciences
Meng-Meng Zheng, Dan Feng, Hui-Jiao Liu, Gui-Li Yang
Summary: This study investigated the tolerance and detoxification mechanisms of duckweed to cadmium. Cadmium negatively affected the growth of duckweed and resulted in shorter root length. More cadmium accumulated in the roots than in the leaves, and it was mainly distributed in the cell wall and organelles. The main chemical form of cadmium was integrated with pectate and protein. Furthermore, cadmium damaged the ultrastructure of cells and inhibited the diversity of microbial communities in the duckweed rhizosphere. These findings provide a theoretical basis for the further development of duckweed.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Environmental
Arpna Kumari, Vasiliy A. Chokheli, Vladimir S. Lysenko, Saglara S. Mandzhieva, Tatiana M. Minkina, Mahmoud Mazarji, Vishnu D. Rajput, Victoria A. Shuvaeva, Svetlana S. Sushkova, Anatoly Barakhov
Summary: This study compared the genotoxicity, cytotoxicity, and phytotoxicity of macro- and nano-forms of ZnO in plants. The results showed that the maximal effect was observed at a concentration of 30 times the maximal permissible concentration for both macro- and nano-forms of ZnO. The treatment with both forms of ZnO significantly affected the germination rate, root and shoot length of the barley plant in a dose-dependent manner. The mobility of nano-dispersed ZnO in the soil was higher than that of macro-dispersed ZnO, and it led to oxidative stress and increased toxicity implications in plants.
ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
(2022)
Article
Energy & Fuels
Ahmed Tawfik, Xuefei Tan, Mohamed Elsamadony, Muhammad Abdul Qyyum, Ahmed M. Azzam, Muhammad Mubashir, Hui Suan Ng, Muhammad Saeed Akhtar, Kuan Shiong Khoo
Summary: The main objective of this research is to increase hydrogen production from delignified duckweed through dark fermentation. The study found that using graphene/hydroxyapatite nano-composite significantly increased hydrogen yield, and this increase was linked to the improvement in hydrogenase enzyme activity.
Article
Biochemistry & Molecular Biology
Magdalena Krupka, Dariusz J. Michalczyk, Jurate Zaltauskaite, Gintare Sujetoviene, Katarzyna Glowacka, Hanna Grajek, Marta Wierzbicka, Agnieszka Piotrowicz-Cieslak
Summary: The study found that Lemna minor L. can significantly recover from antibiotic-induced damage within a week of stress cessation. Mitochondrial activity was the most sensitive plant property to antibiotic disturbances, with a high proportion of dead mitochondria in plants exposed to the highest tetracycline dose. Following transfer to a tetracycline-free medium, all plant parameters improved except for mitochondrial activity in high tetracycline concentration plants.
Article
Biochemistry & Molecular Biology
Magdalena Chmur, Andrzej Bajguz
Summary: Melatonin (MT) is a plant hormone that protects plants from adverse environmental conditions. This study analyzed the responses of Wolffia arrhiza exposed to cadmium (Cd) and MT. The levels of MT and its precursors were higher in plants exposed to Cd, and the application of MT and Cd intensified their biosynthesis. MT enhanced the growth and content of pigments, protein, and sugars, while Cd treatment decreased these compounds, which were mitigated by MT. Cd increased stress markers, while MT reduced their content in duckweed exposed to Cd. In summary, MT is an essential phytohormone for plant growth and development, especially during heavy metal stress.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Environmental Sciences
Xiao Yang, Hai-Min Liao, Ai-Juan Tan, Sheng-Xian Gan, Gui-Li Yang
Summary: This study investigated the effect of polyethylene microplastics (PE-MPs) on the tolerance of duckweed to cadmium (Cd) contamination. The results showed that different concentrations of PE-MPs inhibited the growth and chlorophyll content of duckweed, with minimal effects observed at 50 mg/L. When exposed to 50 mg/L of PE-MPs, duckweed showed the highest Cd enrichment and bioaccumulation factors. This research provides a foundation for using duckweed to purify water contaminated with MPs and heavy metals.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Marine & Freshwater Biology
Gui-Li Yang, Meng-Jun Huang, Ai-Juan Tan, Shi-Ming Lv
Summary: The study found that high concentrations of MC-LR (>= 25 µg/L), NAP (>= 10 µg/L), and their mixture (>= 10 + 1 µg/L) in eutrophic waters can reduce the growth and chlorophyll-a contents of Landoltia punctata. After 7 days of exposure, starch accumulation in L. punctata does not decrease when exposed to NAP and MC-LR, and the antioxidant responses are enhanced. The results suggest that higher NAP concentrations can enhance the bioaccumulation of MC-LR in L. punctata.
AQUATIC TOXICOLOGY
(2021)
Article
Environmental Sciences
Xiao Yang, Ai-Juan Tan, Meng-Meng Zheng, Dan Feng, Kang Mao, Gui-Li Yang
Summary: Through the study of duckweed (Lemna minor 0014), it was found that the physiological responses, enrichment characteristics, diversity of endophytic bacterial communities, and isolation of Cd-resistant endophytes were affected by cadmium (Cd) stress. The activities of peroxidase (POD) and catalase (CAT) decreased, while superoxide dismutase activity first increased and then decreased with increasing Cd stress duration. Malondialdehyde content and Cd accumulation in duckweed increased with increasing concentrations and time. The study also identified a highly diverse endophytic bacterial community in duckweed, with Paenibacillus sp. Y11 being isolated as a Cd-tolerant strain capable of promoting duckweed growth. This study provides a theoretical basis for the application of duckweed in water pollution treatment.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Agricultural Engineering
Jiayang Liu, Zhixin Wang, Hongyan Li, Changwei Hu, Paul Raymer, Qingguo Huang
BIORESOURCE TECHNOLOGY
(2018)
Article
Agricultural Engineering
Jiayang Liu, Changwei Hu, Qingguo Huang
BIORESOURCE TECHNOLOGY
(2019)
Article
Green & Sustainable Science & Technology
Jiayang Liu, Fujia Chen, Chunzhi Li, Leizhen Lu, Changwei Hu, Yu Wei, Paul Raymer, Qingguo Huang
JOURNAL OF CLEANER PRODUCTION
(2019)
Article
Engineering, Environmental
Shiqing Sun, Changwei Hu, Humei Gao, Yongjun Zhao, Jie Xu
WATER ENVIRONMENT RESEARCH
(2019)
Article
Engineering, Environmental
Mimi Wang, Weixing Cao, Chen Sun, Zixiang Sun, Yang Miao, Mengmeng Liu, Zhining Zhang, Yun Xie, Xinxin Wang, Shitao Hu, Changwei Hu, Ronghou Liu
Article
Agricultural Engineering
Yongjun Zhao, Guangyong Guo, Shiqing Sun, Changwei Hu, Juan Liu
BIORESOURCE TECHNOLOGY
(2019)
Article
Agricultural Engineering
Chang'ai Zhang, Changwei Hu, Weixing Cao, Mimi Wang, Fang Hou, Aiai Yu, Hongli Xie, Jiale Lou, Chen Sun, Ronghou Liu
BIORESOURCE TECHNOLOGY
(2019)
Article
Environmental Sciences
Chen Sun, Yinfeng Xu, Naitao Hu, Jun Ma, Shiqing Sun, Weixing Cao, Goran Klobucar, Changwei Hu, Yongjun Zhao
Review
Environmental Sciences
Wenguang Zhang, Chunzhi Zhao, Weixing Cao, Shiqing Sun, Changwei Hu, Juan Liu, Yongjun Zhao
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2020)
Article
Marine & Freshwater Biology
Chen Sun, Wen Li, Yinfeng Xu, Naitao Hu, Jun Ma, Weixing Cao, Shiqing Sun, Changwei Hu, Yongjun Zhao, Qingguo Huang
AQUATIC TOXICOLOGY
(2020)
Article
Environmental Sciences
Naitao Hu, Yinfeng Xu, Chen Sun, Lianwen Zhu, Shiqing Sun, Yongjun Zhao, Changwei Hu
Summary: This study found that the microalgae Chlorella sp. has good potential for removing atrazine, but the degradation products may inhibit its growth and removal capability. Photosynthetic parameters, especially performance index (PIABS), clearly showed differences between treatments.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2021)
Article
Multidisciplinary Sciences
Yunchen Zhao, Wenjiang Fu, Changwei Hu, Guangquan Chen, Zhanwen Xiao, Yuru Chen, Zhijiang Wang, Hongyu Cheng
Summary: The study aimed to characterize the diversity and abundance of soil microbes in rhizosphere soil after continuous maize seed production, and their relationship with disease incidence. Different fungal and bacterial species were predominant in different cropping years, with long-term maize seed production impacting the structure and diversity of soil microbial communities. Continuous cropping induced a decrease in protective microbes and an increase in pathogenic pathogens, posing a risk of pathogen invasion to maize plants.
SCIENTIFIC REPORTS
(2021)
Article
Marine & Freshwater Biology
Li Sun, Shiqing Sun, Ming Bai, Zhengjun Wang, Yongjun Zhao, Qingguo Huang, Changwei Hu, Xi Li
Summary: The study investigated the effects of polystyrene microplastics (MPS) on Euglena gracilis, particularly focusing on photosynthesis and motility. Results showed that high concentrations of MPS inhibited protozoan growth, motility, and photosynthesis, with small size MPS appearing more toxic. Internalization of MPS in cells and chloroplasts was observed, likely contributing to their toxicity. Analysis on photosynthetic process and motility of E. gracilis could offer insights into MPS toxicity and serve as a biomonitoring tool in aquatic environments.
AQUATIC TOXICOLOGY
(2021)
Article
Environmental Sciences
Li Sun, Chunzhi Zhao, Shiqing Sun, Changwei Hu, Yongjun Zhao, Juan Liu
Summary: The study showed that 1 mg L-1 MWCNTs can effectively enhance the growth and photosynthesis of Chlorella vulgaris, leading to increased removal rates of tetracycline and nutrients. Moderate concentrations of MWCNTs are found to promote the activity of Chlorella vulgaris photosynthesis, aiding in tetracycline and nutrient removal.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Toshimi Nakajima, Mao Kuragano, Makoto Yamada, Ryo Sugimoto
Summary: This study compared the contribution of submarine groundwater discharge (SGD) to river nutrient budgets at nearshore and embayment scales, and found that SGD-derived nutrients become more important at larger spatial scales.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Fan Liu, Lei Zhang, Chongyang Zhang, Ziguang Chen, Jingguang Li
Summary: NO2 emissions from wall-mounted gas stoves used for household heating have become a significant source of indoor pollution in Chinese urban areas. The high indoor concentration of NO2 poses potential health risks to residents. It is urgently necessary to establish relevant regulations and implement emission reduction technologies to reduce NO2 emissions from wall-mounted gas stoves.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Letter
Environmental Sciences
Hans Peter H. Arp, Raoul Wolf, Sarah E. Hale, Sivani Baskaran, Juliane Gluege, Martin Scheringer, Xenia Trier, Ian T. Cousins, Harrie Timmer, Roberta Hofman-Caris, Anna Lennquist, Andre D. Bannink, Gerard J. Stroomberg, Rosa M. A. Sjerps, Rosa Montes, Rosario Rodil, Jose Benito Quintana, Daniel Zahn, Herve Gallard, Tobias Mohr, Ivo Schliebner, Michael Neumann
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Philomina Onyedikachi Peter, Binessi Edouard Ifon, Francois Nkinahamira, Kayode Hassan Lasisi, Jiangwei Li, Anyi Hu, Chang-Ping Yu
Summary: This study investigates the relationship between dissolved organic matter (DOM) and Rare Earth Elements (REEs) in sediments from Yundang Lagoon, China. The results show four distinct fluorescent components, with protein-like substances being the most prevalent. Additionally, the total fluorescence intensity and LREE concentrations exhibit a synchronized increase from Outer to Inner to Songbai Lake core sediments. The findings demonstrate a strong correlation between DOM content and pollution levels.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Surya Gupta, Pasquale Borrelli, Panos Panagos, Christine Alewell
Summary: The objective of this study is to incorporate soil hydraulic properties into the erodibility factor (K) of USLE-type models. By modifying and improving the existing equations for soil texture and permeability, the study successfully included information on saturated hydraulic conductivity (Ksat) into the calculation of K factor. Using the Random Forest machine learning algorithm, two independent K factor maps with different spatial resolutions were generated. The results show that the decrease in K factor values has a positive impact on the modeling of soil erosion rates.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Jesmin Akter, Wendy J. M. Smith, Yawen Liu, Ilho Kim, Stuart L. Simpson, Phong Thai, Asja Korajkic, Warish Ahmed
Summary: The choice of workflow in wastewater surveillance has a significant impact on SARS-CoV-2 concentrations, while having minimal effects on HF183 and no effect on HAdV 40/41 concentrations. Certain components in the workflow can be interchangeable, but factors such as buffer type, chloroform, and homogenization speed can affect the recovery of viruses and bacteria.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Yu Luo, Xueting Yang, Diwei Wang, Hongmei Xu, Hongai Zhang, Shasha Huang, Qiyuan Wang, Ningning Zhang, Junji Cao, Zhenxing Shen
Summary: Atmospheric PM2.5, which can generate reactive oxygen species (ROS), is associated with cardiorespiratory morbidity and mortality. The study found that both the mass concentration of PM2.5 and the DTT activity were higher during the heating season than during the nonheating season. Combustion sources were the primary contributors to DTT activity during the heating season, while secondary formation dominated during the nonheating season. The study also revealed that biomass burning had the highest inherent oxidation potential among all sources investigated.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Erin L. Murphy, Leah R. Gerber, Chelsea M. Rochman, Beth Polidoro
Summary: Plastic pollution has devastating consequences for marine organisms. This study uses a trait-based framework to develop a vulnerability index for marine mammals, seabirds, and sea turtles in Hawai'i. The index ranks 63 study species based on their vulnerability to macroplastic pollution, providing valuable information for species monitoring and management priorities.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Kenji Maurice, Amelia Bourceret, Sami Youssef, Stephane Boivin, Liam Laurent-Webb, Coraline Damasio, Hassan Boukcim, Marc-Andre Selosse, Marc Ducousso
Summary: Growing pressure from climate change and agricultural land use is destabilizing soil microbial community interactions. Little is known about microbial community resistance and adaptation to disturbances, hindering our understanding of recovery latency and implications for ecosystem functioning. This study found that anthropic disturbance and natural disturbance have different effects on the topology and stability of soil microbial networks.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Yunhao Li, Yali Feng, Haoran Li, Yisong Yao, Chenglong Xu, Jinrong Ju, Ruiyu Ma, Haoyu Wang, Shiwei Jiang
Summary: Deep-sea mining poses a serious threat to marine ecosystems and human health by disturbing sediment and transmitting metal ions through the food chain. This study developed a new regenerative adsorption material, OMN@SA, which effectively removes metal ions. The adsorption mechanism and performance of the material for metal ion fixation were investigated.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Antonio Medici, Margherita Lavorgna, Marina Isidori, Chiara Russo, Elena Orlo, Giovanni Luongo, Giovanni Di Fabio, Armando Zarrelli
Summary: Valsartan, a widely used antihypertensive drug, has been detected in high concentrations in surface waters due to its unchanged excretion and incomplete degradation in wastewater treatment plants. This study investigated the degradation of valsartan and identified 14 degradation byproducts. The acute and chronic toxicity of these byproducts were evaluated in key organisms in the freshwater trophic chain.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Jiang Lin, Lianbao Chi, Qing Yuan, Busu Li, Mingbao Feng
Summary: This study investigated the photodegradation behavior and product formation of two representative pharmaceuticals in simulated estuary water. The study found that the formed transformation products of these pharmaceuticals have potential toxicity on marine organisms, including oxidative stress and damage to cellular components.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Hua Fang, Dongdong Jiang, Ye He, Siyi Wu, Yuehong Li, Ziqi Zhang, Haoting Chen, Zixin Zheng, Yan Sun, Wenxiang Wang
Summary: This study revealed that exposure to lower levels of air pollutants led to decreased pregnancy rates, with PM10, NO2, SO2, and CO emerging as the four most prominent pollutants. Individuals aged 35 and above exhibited heightened susceptibility to pollutants.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Ali Shaan Manzoor Ghumman, Rashid Shamsuddin, Amin Abbasi, Mohaira Ahmad, Yoshiaki Yoshida, Abdul Sami, Hamad Almohamadi
Summary: In this study, inverse vulcanized polysulfides (IVP) were synthesized by reacting molten sulfur with 4-vinyl benzyl chloride, and then functionalized using N-methyl D-glucamine (NMDG). The functionalized IVP showed a high mercury adsorption capacity and a machine learning model was developed to predict the amount of mercury removed. Furthermore, the functionalized IVP can be regenerated and reused, providing a sustainable and cost-effective adsorbent.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Rita Bonfiglio, Renata Sisto, Stefano Casciardi, Valeria Palumbo, Maria Paola Scioli, Erica Giacobbi, Francesca Servadei, Gerry Melino, Alessandro Mauriello, Manuel Scimeca
Summary: This study investigated the presence of aluminum in human colon cancer samples and its potential association with biological processes involved in cancer progression. Aluminum was found in tumor areas of 24% of patients and was associated with epithelial to mesenchymal transition (EMT) and cell death. Additional analyses revealed higher tumor mutational burden and mutations in genes related to EMT and apoptosis in aluminum-positive colon cancers. Understanding the molecular mechanisms of aluminum toxicity may improve strategies for the management of colon cancer patients.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
