Article
Environmental Sciences
Wenjing Wang, Ming Jiang, Yanqing Sheng
Summary: Glyphosate was found to promote the growth of Microcystis aeruginosa by providing a phosphate source, enhancing enzyme activities, and increasing gene transcription levels. Additionally, glyphosate stimulated the production of dissolved organic matter, enhancing its release in saltwater ecosystems.
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
(2021)
Article
Environmental Sciences
Shanlin Wang, Ping Ding, Siyu Lu, Pian Wu, Xiaoqian Wei, Ruixue Huang, Tianhan Kai
Summary: This study found that the generation of microcystins is related to cell density and the production of quorum sensing molecules, with microcystin synthesis and concentration significantly increasing after the cell density reaches a certain threshold.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2021)
Article
Environmental Sciences
Di Wu, Ting Wang, Jing Wang, Lijuan Jiang, Ying Yin, Hongyan Guo
Summary: The study reveals that 1 μm polystyrene microplastics have a greater impact on freshwater cyanobacteria compared to 100 nm microplastics, promoting algal growth and inhibiting photosynthesis. Additionally, 1 μm microplastics increase intracellular microcystins content and inhibit their release, while 100 nm microplastics only promote microcystin production.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Yao Qian, Yixin He, Hong Li, Meiling Yi, Lilan Zhang, Linjie Zhang, Li Liu, Zhaohui Lu
Summary: The study found that BAC(C12) significantly inhibited the growth of Microcystis aeruginosa by depressing photosynthesis, inducing oxidative stress, and breaking the cell membrane. Additionally, it enhanced the release of microcystin from the cyanobacterial cells, which could enlarge its toxicity to aquatic species.
ENVIRONMENTAL POLLUTION
(2022)
Article
Engineering, Environmental
Jing Yu, Hui Zhu, Heli Wang, Brian Shutes, Tingting Niu
Summary: The rapid development of agriculture has led to increased release of butachlor into aquatic environments. Butachlor has significant toxic effects on the growth, physiology, and molecular mechanisms of Microcystis aeruginosa, a dominant species causing cyanobacterial blooms. Low concentrations of butachlor showed no significant changes, indicating a high tolerance in Microcystis aeruginosa. However, high concentrations of butachlor resulted in inhibition of photosynthetic activity, disruption of cell ultrastructure, oxidative stress, and elevated extracellular microcystin-LR concentration.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Environmental Sciences
Jiaqi An, Yongcan Jiang, Huafen Cao, Ceng Yi, Suxia Li, Mengjie Qu, Guanglong Liu
Summary: This study investigated the photodegradation dynamics and mechanism of glyphosate in ditches, ponds, and lakes through light irradiation experiments. It was found that glyphosate can undergo photochemical degradation under sunlight, leading to the production of phosphate. The main reactive oxygen species for glyphosate photodegradation was hydroxyl radical. The generated phosphate from glyphosate photodegradation can greatly enhance the growth of Microcystis aeruginosa, increasing the risk of eutrophication. Therefore, the scientific and reasonable application of glyphosate is necessary to avoid environmental risks.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2023)
Article
Environmental Sciences
Jing Yu, Hui Zhu, Brian Shutes, Xinyi Wang
Summary: This study evaluates the effect of alkaline salt on Microcystis aeruginosa, a harmful cyanobacterium. It finds that alkaline salt can stimulate the growth of Microcystis aeruginosa, and the organism can tolerate a certain level of alkaline salt stress by increasing photosynthetic pigment contents. However, when the concentration of alkaline salt reaches a certain threshold, it can cause oxidative stress and toxicity in Microcystis aeruginosa, leading to cell apoptosis and ultrastructural changes. Additionally, alkaline salt can stimulate the production of microcystin-LR. Therefore, increased attention should be paid to the risk of Microcystis aeruginosa bloom and microcystin-LR pollution in lakes located in salinization regions.
ENVIRONMENTAL POLLUTION
(2022)
Article
Engineering, Environmental
Hangjun Zhang, Bingzhi Yu, Xizi Li, Yan Li, Yuchi Zhong, Jiafeng Ding
Summary: This study investigates the feasibility of using Fe-g-C3N4-activated PDS to remove Microcystis aeruginosa and microcystin-LR. The results demonstrate an efficient removal of the algae and toxin, and singlet oxygen is found to be a predominant radical in the process. The Fe-g-C3N4-activated PDS system is proven to be an environmentally friendly and efficient technology for algae removal and algal toxin reduction.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Environmental Sciences
Yu Xia, Qin-Ming Xie, Ta-Jen Chu
Summary: This paper studied the effects of two fluoroquinolone antibiotics on Microcystis aeruginosa and found that these antibiotics inhibit the growth of Microcystis aeruginosa and increase its toxin production capacity. This is of great significance for the ecological risk assessment of antibiotics in the water environment.
Article
Environmental Sciences
Lixiao Ni, Yan Li, Xianglan Li, Chu Xu, Cunhao Du, Hanqi Wu, Shiyin Li
Summary: To investigate the inhibitory mechanism of artemisinin sustained-release microspheres (ASMs) on Microcystis aeruginosa (M. aeruginosa) from the molecular level, the expression of prx, psbA, fabZ, and mcyD genes were studied, and the cell death mode was explored. The results showed that the up-regulation of prx and the down-regulation of psbA, fabZ, and mcyD play a role in the algicidal effect of ASMs on M. aeruginosa. The ASMs trigger apoptosis-like cell death and effectively prevent the leakage of microcystin-LR (MC-LR), making them a promising application for killing algae cells without causing secondary ecological hazards.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Hanqi Wu, Weizheng Zhang, Xuhui Huang, Peng Gu, Qi Li, Xingzhang Luo, Zheng Zheng
Summary: This study investigated the cellular responses of Microcystis aeruginosa to the environmental concentrations of perfluorooctanoic acid (PFOA) under different phosphorus (P) conditions. The results showed that P conditions had a significant impact on cyanobacterial growth, photosynthetic pigment content, oxidative stress, and microcystin-LR (MCLR) levels. PFOA was absorbed by cyanobacterial cells through the stimulation of extracellular polymeric substances (EPS) secretion. Once inside the cells, PFOA inhibited photosynthesis, reduced P absorption, induced oxidative damage, and increased mcyA gene expression and MC-LR production. Limited P concentration and forms conditions led to increased PFOA absorption and increased the risk of MC-LR diffusion into the aquatic environment.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Microbiology
Nian Wei, Lirong Song, Nanqin Gan
Summary: This study used iTRAQ-based proteomics to investigate the effects of phosphorus depletion on Microcystis aeruginosa, showing that phosphorus depletion inhibits cell growth and primary metabolic processes while maintaining photosystem integrity, and influences the balance of carbon, nitrogen, and phosphorus in the cells.
Article
Environmental Sciences
Haolian Xu, Zhenzhen Tang, Zixuan Liang, Hongbin Chen, Xiaohu Dai
Summary: Low-frequency ultrasound at 29.4 kHz for 15 min can remove 33.49% of Microcystis aeruginosa, but it also increases the leakage of intracellular algal organic matter and microcystins, accelerating the collapse of blooms and promoting CH4 production.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Lixiao Ni, Hanqi Wu, Cunhao Du, Xianglan Li, Yan Li, Chu Xu, Peifang Wang, Shiyin Li, Jianhua Zhang, Xuqing Chen
Summary: The research demonstrated that artemisinin inhibited the growth of Microcystis aeruginosa, leading to cell death and increased release of microcystin-LR.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Biology
Larry Wymer, Stephen Vesper, Ian Struewing, Joel Allen, Jingrang Lu
Summary: To ensure the safety of drinking water, it is important to understand the relationship between fungi and harmful cyanobacterial blooms (HCBs) and their toxins. This study found that the concentration of the fungus Cladosporium cladosporioides and the microcystin-gene transcript copy number of Microcystis aeruginosa appeared to be interrelated during each bloom season. The results also showed that there might be a balanced antagonism between the fungus and the cyanobacteria, with variations observed between different years.
Article
Environmental Sciences
Yuanchen Chen, Lu Zang, Maodian Liu, Chunlong Zhang, Guofeng Shen, Wei Du, Zhe Sun, Jie Fei, Liyang Yang, Yonghui Wang, Xuejun Wang, Meirong Zhao
ENVIRONMENT INTERNATIONAL
(2019)
Article
Environmental Sciences
Yi Qian, Chenyang Ji, Siqing Yue, Meirong Zhao
ENVIRONMENTAL POLLUTION
(2019)
Article
Environmental Sciences
Siqing Yue, Jie Yu, Yuan Kong, Haofeng Chen, Manfei Mao, Chenyang Ji, Shuai Shao, Jianqiang Zhu, Jinping Gu, Meirong Zhao
ENVIRONMENT INTERNATIONAL
(2019)
Article
Chemistry, Medicinal
Lihong Chai, Shujing Ji, Shubin Zhang, Haiying Yu, Meirong Zhao, Li Ji
CHEMICAL RESEARCH IN TOXICOLOGY
(2020)
Article
Engineering, Environmental
Siqing Yue, Yuan Kong, Qiqi Shen, Qingmiao Cui, Yuanchen Chen, Meirong Zhao
ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS
(2020)
Article
Chemistry, Medicinal
Jinping Gu, Yafei Cheng, Chenyang Ji, Ying Tao, Meirong Zhao
CHEMICAL RESEARCH IN TOXICOLOGY
(2020)
Article
Environmental Sciences
Chenyang Ji, Qin Song, Yuanchen Chen, Zhiqiang Zhou, Peng Wang, Jing Liu, Zhe Sun, Meirong Zhao
ENVIRONMENT INTERNATIONAL
(2020)
Article
Environmental Sciences
Hangbiao Jin, Lingling Mao, Jiahui Xie, Meirong Zhao, Xiaoxia Bai, Jie Wen, Tao Shen, Pengfei Wu
SCIENCE OF THE TOTAL ENVIRONMENT
(2020)
Article
Chemistry, Medicinal
Chenyang Ji, Chang Yu, Jianqiang Zhu, Yafei Cheng, Tian Tian, Bingqi Zhou, Jinping Gu, Jun Fan, Meirong Zhao
Article
Engineering, Environmental
Chenyang Ji, Jason T. Magnuson, Wen Zhang, Meirong Zhao
Summary: The study revealed that Cypermethrin enantiomers induce different cytotoxic responses and the enantioselective toxicity may be related to differential expression of cell cycle and apoptosis-related genes.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Engineering, Environmental
Nan Zhao, Hongmei Hu, Meirong Zhao, Weiping Liu, Hangbiao Jin
Summary: This study identified the amount of BPs present in conjugated forms in marine organisms for the first time, providing valuable insights into the occurrence of BPs in organisms.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Chemistry, Medicinal
Lingling Mao, Shuhong Fang, Meirong Zhao, Weiping Liu, Hangbiao Jin
Summary: This study utilized metabolomics to examine the metabolic changes in rat plasma following exposure to BPA or BPS, revealing distinct alterations in metabolome and the up-regulation/down-regulation of specific metabolites in the different exposure groups. Pathway analysis also highlighted significant disruptions in metabolic pathways associated with BPA and BPS exposure.
CHEMICAL RESEARCH IN TOXICOLOGY
(2021)
Article
Engineering, Environmental
Quan Zhang, Lili Fu, Tao Cang, Tao Tang, Mingcheng Guo, Bingbing Zhou, Guohua Zhu, Meirong Zhao
Summary: With the increasing demand for pollinating services, the wellness of honeybees has received widespread attention. Research has shown that S-dinotefuran is more toxic than rac-dinotefuran and R-dinotefuran by 114 times, and that the Eastern honeybee is more susceptible to the highly toxic enantiomer S-dinotefuran.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Engineering, Environmental
Sijia Gu, Lili Fu, Jing Wang, Xiaohui Sun, Ximing Wang, Jianlin Lou, Meirong Zhao, Cui Wang, Quan Zhang
Summary: This study investigated the association between urinary neonicotinoid and relative mitochondrial DNA copy number (RmtDNAcn) in oral epithelial cells. Results showed a significant correlation between urinary neonicotinoid and RmtDNAcn, indicating potential dose-dependent mitochondrial damage. In vitro assays confirmed that neonicotinoid exposure led to inhibition of mitochondrial oxidative phosphorylation genes and increased reactive oxygen species production.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Environmental
Siqing Yue, Qixian Yuan, Qiqi Shen, Yaqi Xu, Ping Wang, Min Si, Meirong Zhao
Summary: The present study focused on the toxicological effects of Cypermethrin (CP) at environmentally relevant concentrations in pubertal male rats and found histopathological and organosomatic alterations in the liver, brain, and epididymis. Multiomics network analysis revealed the involvement of specific gut microbiota in CP-induced hepatic lipid accumulation and brain neurotoxicity. The study provides important insights into CP-induced toxicity and highlights the potential for targeted interventions to mitigate the adverse effects of environmental toxins through the gut-organ axis.
JOURNAL OF HAZARDOUS MATERIALS
(2023)