Article
Engineering, Environmental
Edo Bar-Zeev, Natalia Belkin, Adva Speter, Tom Reich, Eyal Geisler, Eyal Rahav
Summary: Sewage outbursts have a negative impact on SWRO desalination, leading to an increase in transparent exopolymer particle (TEP) concentrations and a significant rise in RO-TMP. The pretreatment system is effective in removing algal biomass but less so for bacterial biomass and TEP.
Article
Agricultural Engineering
Guangchun Shan, Weiguang Li, Jie Liu, Wenbing Tan, Shanshan Bao, Shuncai Wang, Lin Zhu, Xinhao Hu, Beidou Xi
Summary: This study revealed the regulatory effects of aqueous phases formed from hydrothermal carbonation on nitrogen metabolism pathways during composting, increasing the levels of nitrogen assimilation, nitrification, and denitrification pathways, and decreasing the level of nitrogen mineralization pathway.
BIORESOURCE TECHNOLOGY
(2023)
Article
Microbiology
Joanna Swiatczak, Agnieszka Kalwasinska, Attila Szabo, Maria Swiontek Brzezinska
Summary: This study aimed to assess the impact of B. paralicheniformis 2R5 on the bacterial and fungal community structure and diversity. The results showed that inoculation with B. paralicheniformis 2R5 initially decreased bacterial richness but increased after 44 days. B. paralicheniformis 2R5 altered the soil bacterial and fungal community structure by increasing the abundance of beneficial microorganisms and can be considered as an alternative to chemical pesticides for practical application in the field.
MICROBIOLOGICAL RESEARCH
(2023)
Article
Agricultural Engineering
Shi-Peng Wang, Li Wang, Zhao-Yong Sun, Song-Tao Wang, Hua-Wei Yuan, Ming-Zhe An, Yue-Qin Tang, Cai-Hong Shen, Kenji Kida
Summary: This study found that co-composting of distilled grain waste (DGW) and distillery sewage sludge (SS) was more efficient and produced higher quality end products compared to mono-composting of DGW. The bacterial community richness and stability were also enhanced during co-composting.
BIORESOURCE TECHNOLOGY
(2022)
Article
Soil Science
Shuang Liu, Jian Jin, Huanmin Yang, Peng Wang, Quan Liu, Yulan Huang, Xingmei Zhang, Kuide Yin
Summary: Feeding geese in cornfields can alter the composition and function of bacterial communities, leading to increased soil fertility and improved agricultural development. The study found that the relative abundance of beneficial bacteria in the goose-fed soil was higher, and the metabolic capacity of soil bacteria under the goose-feeding treatment was stronger compared to the control.
APPLIED SOIL ECOLOGY
(2022)
Article
Environmental Sciences
Karsten Schlich, Cecilia Diaz, Benjamin Gomez Pizarro, Burkhard Knopf, Ruben Schlinkert, Franziska Frederike Wege, Anne Jurack, Kerstin Hund-Rinke
Summary: This study evaluated the impact of gold nanoparticles (AuNPs) on the microbial diversity and function of activated sludge under simulated synthetic sewage in a sewage treatment plant (STP). The results showed that within specific conditions, AuNPs had no adverse effects on microbial diversity and function.
Article
Agricultural Engineering
Li Chen, Weiguang Li, Yi Zhao, Shumei Zhang, Liqiang Meng
Summary: This study evaluated the coupling effects of sodium nitrate (SN) and sulfur-oxidizing bacterial agent (BA) on oxidizing reduced-state sulfur and altering the bacteria community. The results showed that bacterial inoculation prolonged the thermophilic period, facilitated organics degradation, and compost humification. The SN + BA treatment reduced H2S emissions and sulfur loss rate, and enhanced nitrate reduction efficiency. Bacterial inoculation also altered the diversities and structure of the bacterial community.
BIORESOURCE TECHNOLOGY
(2022)
Review
Agricultural Engineering
Yue Li, Mukesh Kumar Awasthi, Raveendran Sindhu, Parameswaran Binod, Zengqiang Zhang, Mohammad J. Taherzadeh
Summary: This article provides an overview of the application of biochar for organic waste co-composting and its biochemical transformation mechanism. Biochar functions in the adsorption of nutrients, retention of oxygen and water, and promotion of electron transfer as a composting amendment. It mediates resistance genes, mobile gene elements, and biochemical metabolic activities of organic matter degrading. Biochar enrichment enhances the α-diversity of microbial communities throughout composting stages, ultimately reflecting high β-diversity. Easy and convincing methods for biochar preparation and its characteristics need to be explored for in-depth study of the mechanism of biochar on composting microbes at the microscopic level.
BIORESOURCE TECHNOLOGY
(2023)
Article
Environmental Sciences
Xinye Gong, Zuhan Ge, Zihang Ma, Yaguang Li, Deying Huang, Jibiao Zhang
Summary: Algal-bacterial symbiotic system is an effective biological purification system that combines sewage treatment with resource utilization, and its effects on carbon sequestration and pollution reduction were evaluated in this study. The immobilized algal-bacterial biofilm system was exposed to microplastics (MPs) of different particle sizes, and the impacts on algal biomass recovery efficiency, extracellular polymeric substances (EPS) composition, morphologic characteristics, bacterial diversity, and community structure were analyzed. The study also investigated the metagenomic analysis of key microorganisms and metabolic pathways. Results indicated that 5 μm MPs had the highest damaging effect on the algal-bacterial biofilm, leading to increased EPS secretion and a rough and loose morphology. Proteobacteria, Firmicutes, and Actinobacteria were dominant species in all groups, with 5 μm MPs showing the highest relative abundance. The addition of MPs promoted metabolic functions but hindered the degradation of harmful substances by the biofilms.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Microbiology
Ashraf Al-Ashhab, Amer Sweity, Luna Al-Hadidi, Moshe Herzberg, Zeev Ronen
Summary: This study investigates the biodegradability of three commercial antiscalants used in seawater desalination and their effects on microbial diversity. The results show that the polyphosphonate antiscalant is the least biodegradable and has the least impact on bacterial community composition.
Article
Environmental Sciences
Inderjeet Tyagi, Kaomud Tyagi, Rakesh Bhutiani, Kailash Chandra, Vikas Kumar
Summary: The study examined the bacterial community structure in the East Kolkata Wetlands (EKWs), the world's largest sewage-fed fish farms, and revealed their correlation with environmental variables, particularly water quality parameters. The analysis showed an abundance of specific bacterial genera in EKWs and highlighted the impact of variables like dissolved oxygen, biochemical oxygen demand, and chemical oxygen demand on the bacterial community structure. The results suggested an inverse relationship between the abundance of certain genera and BOD/COD, indicating poor management and inefficient functioning of the man-made wetland.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Engineering, Marine
Emad Hussein, Abdul-Salam F. Juhmani, Jacob H. Jacob, Mahmoud A. Telfah, Mutaz A. Abd Al-razaq, Fuad A. Al-Horani, Mazhar Salim Al Zoubi, Hanan Malkawi
Summary: This study aims to understand the response of corals to local environmental stressors and the variation in coral mucus-associated bacterial communities. The results showed that the bacterial communities were influenced by local anthropogenic impacts and coral diseases, and some bacterial isolates had antibacterial activity.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2022)
Article
Multidisciplinary Sciences
Md Nurul Haider, Md Mehedi Iqbal, Masahiko Nishimura, Eiko Ikemoto, Minoru Ijichi, Kazuhiro Kogure
Summary: Microcosm experiments were conducted to investigate the changes in bacterial growth pattern and community structure by adding labile organic compounds in different oceanic environments. The results showed that the bacterial community structure and growth pattern varied significantly depending on the environmental conditions. Temperature played a crucial role in the growth and succession of bacteria.
SCIENTIFIC REPORTS
(2023)
Article
Multidisciplinary Sciences
Heqing Huang, Jianhui Liu, Fanghui Zhang, Kangwen Zhu, Chunhua Yang, Qiujie Xiang, Bo Lei
Summary: Urban rivers have distinct planktonic and sediment bacterial communities, with variations in diversity and composition driven mainly by temperature and nutrient levels.
Article
Biotechnology & Applied Microbiology
Yi Li, Lijian Zhao, Lihua Niu, Longfei Wang, Shiqin Zhao, Xiangzhe Xu
Summary: Pressure treatment of Microcystis before discharge into water has emerged as a method to control Microcystis blooms. However, the effect of pressurized Microcystis on microbial communities in water has not been studied extensively. In this research, different pressure treatment protocols were evaluated and the most effective approach was pressurizing Microcystis up to 0.7 MPa in 5 seconds with a pressure-accelerating speed of 0.14 MPa/s, and treating for 30 seconds. After treatment, gas vesicles were destroyed and extracellular polymeric substance (EPS) on cells was exfoliated. The exfoliated EPS significantly affected microbial phyla associated with organic matter degradation, resulting in enhanced energy metabolism and increased uptake of dissolved organic phosphorus (DOP) by microorganisms. This study is important for understanding the impact of pressurized Microcystis control measures on lake ecology.
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2023)
Article
Limnology
Yongsheng Cui, Jiaxue Wu, Jie Ren, Jie Xu
LIMNOLOGY AND OCEANOGRAPHY
(2019)
Article
Microbiology
Xiangfu Li, Jie Xu, Zhen Shi, Ruihuan Li
FRONTIERS IN MICROBIOLOGY
(2019)
Article
Oceanography
Xiaoyong Yu, Jie Xu, Aimin Long, Ruihuan Li, Zhen Shi, Qian P. Li
ACTA OCEANOLOGICA SINICA
(2020)
Article
Environmental Sciences
Bin Wu, Haiyan Jin, Shengquan Gao, Jie Xu, Jianfang Chen
JOURNAL OF COASTAL RESEARCH
(2020)
Article
Oceanography
Qingyou He, Haigang Zhan, Jie Xu, Shuqun Cai, Weikang Zhan, Linbin Zhou, Guozhen Zha
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2019)
Article
Environmental Sciences
Zhengchao Wu, Qian P. Li, Yuan Dong, Jie Xu, Lin Luo
Summary: The study reported high-resolution spatiotemporal distributions of pPUA and dPUA in a frontal system outside the Pearl River Estuary of the northern South China Sea, revealing complex distribution patterns and discussing their ecological and biogeochemical implications on the NSCS shelf-sea. The research found correlations between pPUA levels and phytoplankton blooms, as well as shifts in dominant PUA-producing diatoms along the front, providing insight into the sources and mixing processes of these aldehydes in the marine environment.
JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
(2021)
Article
Environmental Sciences
Caiqin Hu, Jie Xu, Xiangfu Li, Zhen Shi, Ruihuan Li
Summary: Bacteria abundance in the upper 200 m of the South China Sea was modeled using GLM, GAM, and GBM, with GBM showing superior predictive performance. Environmental factors such as salinity, chlorophyll-a, and temperature were found to be key regulators of bacterial distribution both horizontally and vertically in the SCS. Viruses and nutrients played a minor role compared to chlorophyll-a and temperature in regulating bacterial abundance.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Microbiology
Caiqin Hu, Xiangfu Li, Maoqiu He, Peng Jiang, Aimin Long, Jie Xu
Summary: Ocean acidification (OA) caused by increasing anthropogenic CO2 emissions affects bacterial metabolic activity and community composition in the ocean, leading to decreased bacterial production and more DOC being transferred to CO2. Under high-pCO(2) conditions, there is an increase in small-sized bacteria and higher bacterial species diversity.
FRONTIERS IN MICROBIOLOGY
(2021)
Article
Environmental Sciences
Maoqiu He, Lanlan Cai, Jie Xu, Xiangfu Li, Zhen Shi, Nianzhi Jiao, Rui Zhang
Summary: This study investigated the diversity of psbA gene-containing microorganisms in marine sediments, revealing the prevalence and diversity of psbA gene regardless of water depth. Phylogenetic analysis showed the presence of various microorganisms including cyanophages, cyanobacteria, and eukaryotic algae in sediments. The study suggests the potential prevalence of downward transport of cyanophages from the photic zone to the seafloor, and highlights the importance of these microorganisms in carbon cycling.
JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
(2021)
Article
Oceanography
Jianzu Liao, Jie Xu, Ruihuan Li, Zhen Shi
Summary: The study highlights the importance of understanding the response of photosynthesis-irradiance parameters to mesoscale eddies in accurately modeling primary production within eddies. Additionally, it shows that phytoplankton community composition can modulate the variability in these parameters within eddy systems.
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2021)
Article
Limnology
Ruihuan Li, Jie Xu, Xianrong Cen, Wanxuan Zhong, Jianzu Liao, Zhen Shi, Shengqi Zhou
Summary: This study quantified the vertical turbulent fluxes of nitrate and assessed its role in modulating new production inside cyclonic and anticyclonic eddies. The results showed that although the turbulent nitrate flux was higher in cyclonic eddies, it contributed less to new production compared to anticyclonic eddies. Differences in turbulent diffusivity and nitrate gradients influenced the distribution pattern of fluxes in the eddies.
LIMNOLOGY AND OCEANOGRAPHY
(2021)
Article
Biodiversity Conservation
Lin Deng, Wen Zhou, Jie Xu, Wenxi Cao, Jianzu Liao, Jun Zhao
Summary: This study estimated the size-fractionated phytoplankton primary production (PP) in the Northern South China Sea (NSCS) using hyperspectral absorption and irradiance data. The estimated results showed good agreement with in-situ measurements. The derived PP profiles exhibited different spatial distribution patterns in coastal and open ocean areas.
ECOLOGICAL INDICATORS
(2022)
Article
Plant Sciences
Jiawei Chen, Yingdong Li, Hongmei Jing, Xiaodong Zhang, Zhimeng Xu, Jie Xu, Hongbin Liu
Summary: Mesoscale eddies are common oceanographic features that impact the metabolism and community structure of Synechococcus. This study recovered two high-quality Synechococcus metagenome-assembled genomes from eddies in the South China Sea, revealing different metabolic adaptations of the two subgroups to eddy-associated environmental changes. Transcriptional analysis showed that one subgroup had a strong ability to utilize organic nutrients in nutrient-deprived surface water, while the other subgroup had the genetic potential for chromatic acclimation at different depths.
Article
Oceanography
Li Zhang, Yumin Yang, Weihong He, Jie Xu, Ruihuan Li
Summary: The Zhujiang River Estuary is experiencing eutrophication due to anthropogenic activities. Nutrient dynamics and fluxes to the Lingdingyang water through four outlets were investigated. Riverine fluxes of dissolved inorganic nitrogen (DIN) and dissolved silicate (DSi) varied seasonally, with the highest in spring and the lowest in winter. Riverine flux of phosphate showed little seasonal variability. Most riverine nutrients entered Lingdingyang water through Humen Outlet. Estuarine export fluxes of DIN were higher than riverine flux in May, potentially due to local sewage, while they were lower in August. Export fluxes of phosphate were higher than riverine flux in May and August. Large amounts of DSi were buried in the estuary in May and August. Despite excess DIN input, eutrophication effect was not severe due to light limitation.
ACTA OCEANOLOGICA SINICA
(2022)
Review
Oceanography
Caiqin Hu, Xiangfu Li, Zhen Shi, Jie Xu
Summary: This study reveals the geographical and environmental regulations on viral abundance in the South China Sea. The results indicate that environmental factors play a more significant role in governing viral abundance than geographical factors. In the vertical direction, viral abundance varies with depth, influenced by temperature, ultraviolet radiation, and host biomass.
PROGRESS IN OCEANOGRAPHY
(2022)
