Article
Immunology
Xian-hua Xie, Yu-jie Huang, Guo-sheng Han, Zu-guo Yu, Yuan-lin Ma
Summary: This study proposes a multifractal analysis for metagenomic research, finding that metagenomes exhibit self-similarity by visualizing the chaotic game representation. The multifractal dimension is calculated and correlated with traditional species diversity indices, and the results reveal differences based on the age of infants' gut microbiomes.
FRONTIERS IN CELLULAR AND INFECTION MICROBIOLOGY
(2023)
Article
Marine & Freshwater Biology
Jing Dong, Yue Yang, Dujuan Dai, Feihu Wang, Yang Zhang, Yuhuan Chen, Jie Yuan, Conghui Guo, Yunni Gao, Man Zhang, Xiaofei Gao, Xuejun Li
Summary: This study comprehensively investigated the response of submerged Ceratophyllum demersum to exudates and extracts of toxic Microcystis aeruginosa at different growth phases and concentrations. The results showed that the effects on C. demersum varied depending on the growth phase and concentration, and the abundance of beneficial and harmful microorganisms was also affected.
Article
Chemistry, Physical
Jia-Ying Xu, Han Xu, Xiao-Li Yang, Rajendra Prasad Singh, Tao Li, Yan Wu, Hai-Liang Song
Summary: This study constructed a submerged macrophyte sediment microbial fuel cell (SP-SMFC) system, and found that submerged plants have advantages in enhancing bioelectricity generation and pollutants removal, with the Ceratophyllum demersum L. group showing the best performance. The presence of plants was shown to enhance microbial activities, increase enzyme activities, and improve bioelectricity generation and pollutants removal efficiency.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Environmental Sciences
Jieming Li, Linrong Cao, Zhonghui Guo, Guangqi An, Biying Li, Ji Li
Summary: This study confirmed 3.5 mg/L as the IC50 value for kaempferol inhibiting toxigenic Microcystis growth and explored the algicidal effects and mechanisms against Microcystis exposed to various kaempferol doses. Results showed that growth inhibition ratio increased with kaempferol dose, with various physiological parameters showing different trends. Overall, kaempferol exhibited good algicidal effects against Microcystis.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2021)
Article
Marine & Freshwater Biology
Vanessa Virginia Barbosa, Ranielle Daiana dos Santos Silva, Juliana dos Santos Severiano, Mathias Ahii Chia, Jose Etham de Lucena Barbosa
Summary: Investigations on the influence of green microalgae associated with cyanobacteria exposure to macrophytes and the production of cyanotoxins have not been previously explored. The effects of the presence of live plants and extracts of the Egeria densa, on the growth and saxitoxin production of Raphidiopsis raciborskii were investigated in the presence and absence of Chlorella vulgaris. The physical presence of the macrophyte reduced the biovolume of the cyanobacterium and its production of saxitoxins, while cultures exposed to aqueous extract had elevated saxitoxin levels. The green microalgae also increased the amount of cyanotoxins, especially when the macrophyte biomass was low. These findings suggest that E. densa can inhibit the growth of R. raciborskii and the production of cyanotoxins and that the presence of C. vulgaris can alter these processes.
Article
Food Science & Technology
Yuanyuan Cui, Mengge Ning, Hong Chen, Xuejun Zeng, Yuan Yue, Yahong Yuan, Tianli Yue
Summary: This study explored the diversity of microorganisms in Tibetan kefir grains (TKGs) and the protective effect of isolates on ethanol-treated HepG2 cells. The most abundant bacterial taxon was Lactobacillus Kefiranofaciens and the most abundant fungal taxum was Kluyveromyces marxianus in TKGs. Thirteen isolates belonging to different genera were obtained and showed potential protective effects against ethanol-induced liver injury. The isolates were found to exhibit anti-oxidant, anti-inflammatory, and anti-apoptotic properties.
Article
Environmental Sciences
Yu Zhao, Baohua Guan, Chunyu Yin, Xiaolong Huang, Huaxin Li, Kuanyi Li
Summary: This study investigates the effects of different combinations of submerged macrophytes on water quality and submerged macrophyte communities through mesocosm experiments. The results suggest that communities with high species and functional diversity are more beneficial for improving water quality and establishing stable submerged macrophyte communities.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Mudalige Don Hiranya Jayasanka Senavirathna, Liu Zhaozhi, Takeshi Fujino
Summary: Microplastics have significant effects on the freshwater macrophyte Egeria densa, even at low concentrations. Exposure to microplastics led to changes in pigmentation, oxidative stress, antioxidant responses, and chlorophyll fluorescence parameters. Microplastic particles were adsorbed to the roots rather than absorbed into the tissues. The threshold concentration value for E. densa was 0.25 mg L-1.
WATER AIR AND SOIL POLLUTION
(2022)
Article
Environmental Sciences
Jing Dong, Dujuan Dai, Yue Yang, Feihu Wang, Xuejun Li, Jie Yuan, Yuhuan Chen, Yunni Gao, Man Zhang, Xiaofei Gao, Mei Li, Jingxiao Zhang
Summary: This study comprehensively investigated the responses of Ceratophyllum demersum to gradient concentrations of microcystin-LR (MC-LR), revealing its high reduction and accumulation efficiency of MC-LR. It also highlighted the negative effects on C. demersum, such as biomass reduction and changes in microbial community composition, as well as oxidative damage and altered defense strategies. Furthermore, it verified the potential of submerged macrophytes as an eco-friendly strategy for controlling cyanobacterial blooms, while considering the negative effects on the macrophytes themselves.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Engineering, Environmental
Yaotong Gao, Yuxuan Zhang, Qiuying Wei, Xiaoyuan Qi, Qidong Yin, Bingjun Liu, Kai He
Summary: The issue of black and smelly water bodies is crucial for urban management. Ecological restoration using submerged macrophytes is an effective technology to prevent and control this issue. This study investigated the effect of different planting structures of submerged macrophytes on the removal efficiency of pollutants and the microbial community composition using high-throughput DNA sequencing. The results showed that mixed submerged macrophytes had a better water quality improvement effect and influenced microbial diversity and composition.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Environmental Sciences
Shuai Ma, Huanhuan Geng, Changchun Yan, Xiaomin Han, Dan Xu, Furong Zhao, Ruth E. Blake, Beihai Zhou, Huilun Chen, Rongfang Yuan, Baoshi Jin, Haijun Liu, Fei Wang
Summary: The bacterial community in sediments of lakes dominated by macrophytes and lakes without macrophytes show different sensitivities to excessive nutrients. Bacterial communities in macrophyte-dominated areas are more susceptible to changes in nutrient levels and have lower stability compared to macrophyte-free areas.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Ecology
Yafang Wang, Qing Chen, Lei Li, Huifang Ding, James D. Fraser, Jinjin Hou, Wenjuan Wang
Summary: Wetland habitat degradation has led to increasing food shortages for wild animals. While the direct effects of food shortages on consumers are well studied, the cascading effects on interspecific interactions remain poorly understood. Targeted research is needed to improve our understanding of the impacts of food shortage on animals and facilitate conservation planning.
FRESHWATER BIOLOGY
(2023)
Article
Environmental Sciences
Jun Hong, Xuhui Huang, Zhikai Wang, Xingzhang Luo, Suzhen Huang, Zheng Zheng
Summary: With the wide application of plastic products, microplastic pollution has become a major environmental issue of global concern. This study investigated the response mechanisms of the submerged plant Myriophyllum verticillatum and epiphytic biofilm to the antibiotic enrofloxacin, microplastics, and their combined exposure. The results showed that high concentrations of enrofloxacin caused irreversible damage to the plants, while microplastics had no significant effect on the plants but facilitated the aggregation of microorganisms. The combination of enrofloxacin and microplastics induced a synergistic effect on the plants, increasing their antioxidant enzyme activity.
Article
Environmental Sciences
Pan Yan, Yuanyuan Peng, Yuanyuan Fan, Manping Zhang, Jiajie Chen, Xushun Gu, Shanshan Sun, Shengbing He
Summary: This research studied the effect of ferrous on the seed germination and growth of Vallisneria natans (V. natans) through aquatic simulation experiments and explored its influence on the rhizosphere microbial community. The results showed that ferrous concentrations above 5.0 mg/L significantly inhibited seed germination of V. natans, with the optimal concentration for germination being 0.5 mg/L. Ferrous addition induced a brief period of stress during the growth of V. natans, which then promoted growth for about 19 days. The diversity and richness of the rhizospheric microbial community increased after ferrous addition, but the function of the microbial community showed no significant difference between different ferrous concentrations. These findings have implications for the ecological evaluation of ferrous addition or iron-containing water, as well as the restoration of submerged macrophytes in freshwater ecosystems.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Gui Yu, Suzhen Huang, Xingzhang Luo, Wei Zhao, Zheng Zheng
Summary: Nano- and microplastics pose severe risks to the ecological environment, with potential toxic effects on aquatic organisms and the potential for compound pollution. This study investigated the toxic effects of polystyrene nanoplastics (PS-NPs) and bisphenol F (BPF) on submerged macrophytes, revealing their impact on growth, physiological characteristics, and leaf biofilm properties.
SCIENCE OF THE TOTAL ENVIRONMENT
(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)