Article
Agronomy
Peter T. Pellitier, Robert B. Jackson
Summary: This study provides direct evidence that phosphorus (P) constrains the growth responses of understory plants to elevated CO2 (eCO2), and indirectly highlights the role of microorganisms in plant responses to eCO2.
Article
Environmental Sciences
Ximei Han, Guiyao Zhou, Qin Luo, Olga Ferlian, Lingyan Zhou, Jingjing Meng, Yuan Qi, Jianing Pei, Yanghui He, Ruiqiang Liu, Zhenggang Du, Jilan Long, Xuhui Zhou, Nico Eisenhauer
Summary: The effect of elevated atmospheric CO2 concentrations on plant biomass responses is still unclear, particularly in terms of how it affects phosphorus cycling in terrestrial ecosystems.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Plant Sciences
Fran Lauriks, Roberto L. Salomon, Linus De Roo, Juan Sobrino-Plata, Aida Rodriguez-Garcia, Kathy Steppe
Summary: Elevated atmospheric CO2 concentration (eCO(2)) can mitigate the adverse effects of moderate drought on leaf functioning, but its effects on tree responses to severe drought and throughout the growing season are largely unknown. This study found that eCO(2) mainly reduced the drought susceptibility of leaf processes during the late season and under moderate drought, but had limited effect on whole-tree functioning and non-structural carbohydrates depletion caused by drought.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2022)
Article
Environmental Sciences
Jing Yang, Guojun Liu, Haiyan Tian, Xin Liu, Xingyu Hao, Yuzheng Zong, Dongsheng Zhang, Xinrui Shi, Aiping Wang, Ping Li, Shu Kee Lam
Summary: This study investigated the effects of straw management on nitrous oxide (N2O) emissions, soil properties, and grain yield in wheat ecosystems. The results showed that straw return increased N2O emissions, but also improved grain yield and soil organic carbon sequestration, making it beneficial for climate change mitigation.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Plant Sciences
James Bunce
Summary: The response of carbon fixation in C-3 plants to elevated CO2 is larger when constrained by carboxylation capacity (V-C) rather than electron transport (J). Experiments showed that photosynthesis at elevated CO2 is limited by V-C even at low light conditions, with all species tested exhibiting this characteristic.
Article
Biochemistry & Molecular Biology
Lucia Drabikova, Per Gunnar Fjelldal, Muhammad Naveed Yousaf, Thea Morken, Adelbert De Clercq, Charles McGurk, Paul Eckhard Witten
Summary: Expansion of land-based systems in fish farms raises the level of metabolic carbon dioxide (CO2) in the water. High CO2 can increase bone mineralization in Atlantic salmon. Low dietary phosphorus (P) can halt bone mineralization. This study shows that high CO2 can counteract reduced bone mineralization imposed by low dietary P intake.
Article
Ecology
Scott N. Johnson, Craig V. M. Barton, Fikadu N. Biru, Tarikul Islam, Wade J. Mace, Rhiannon C. Rowe, Ximena Cibils-Stewart
Summary: In a field setting, elevated atmospheric CO2 and silicon supplementation increased plant biomass, while herbivory reduced it and induced silicon accumulation. However, increased atmospheric CO2 concentrations resulted in decreased shoot silicon concentrations. Additionally, endophytic fungi negatively impacted phosphorus uptake.
FUNCTIONAL ECOLOGY
(2023)
Review
Biodiversity Conservation
Julia Maschler, Lalasia Bialic-Murphy, Joe Wan, Louise C. Andresen, Constantin M. Zohner, Peter B. Reich, Andreas Luscher, Manuel K. Schneider, Christoph Muller, Gerald Moser, Jeffrey S. Dukes, Inger Kappel Schmidt, Mark C. Bilton, Kai Zhu, Thomas W. Crowther
Summary: The article reviews the effect of elevated CO2 concentrations on plant biomass across various ecological scales, highlighting discrepancies in biomass responses at different levels. It emphasizes the need to integrate knowledge across scales for a better understanding of future terrestrial C storage.
GLOBAL CHANGE BIOLOGY
(2022)
Article
Environmental Sciences
Xiong Yang, Dongming Wang, Ye Tao, Min Shen, Chuanqi Ma, Chuang Cai, Lian Song, Bin Yin, Chunwu Zhu
Summary: This study found that elevated CO2 (eCO2) can lower soil Eh and increase the concentrations of dissolved As and Fe2+ in soil pore water in arsenic (As) paddy soils. It also showed that eCO2 enhances the transfer of As from rice straws to grains, leading to higher As accumulation in rice. Moreover, the increased amount of iron plaque (IP) under eCO2 fails to effectively inhibit As uptake by rice due to the difference in critical stage between As immobilization and uptake by rice roots. Therefore, improving soil Eh and selecting appropriate rice varieties are suggested strategies to alleviate the As threats to rice under eCO2.
Article
Biodiversity Conservation
Chunhui Zhan, Rene Orth, Mirco Migliavacca, Soenke Zaehle, Markus Reichstein, Jan Engel, Anja Rammig, Alexander J. Winkler
Summary: This study aims to develop a method to detect the emergence of physiological effects of elevated atmospheric CO2 (eCO2) on carbon and water fluxes. The study utilizes a land surface model to simulate the propagation of these effects across different climate regions and biomes, and develops a statistical method based on the signal-to-noise ratio to detect their emergence.
GLOBAL CHANGE BIOLOGY
(2022)
Article
Plant Sciences
Driss Touhami, Leo Murtagh Condron, Richard William McDowell
Summary: The experiment indicated that under P deficiency, plants did not show significant response to eCO2, and there were variations among different plant species.
JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION
(2021)
Article
Biodiversity Conservation
Chenchao Xu, Naifang Zhang, Kaihang Zhang, Shuyao Li, Qing Xia, Jing Xiao, Maojun Liang, Weilei Lei, Junpan He, Gaiping Chen, Chengjun Ge, Xunhua Zheng, Jianguo Zhu, Shuijin Hu, Roger T. T. Koide, Mary K. K. Firestone, Lei Cheng
Summary: Continued emissions of CO2 and CH4 will significantly increase global atmospheric CO2 and CH4 concentrations and surface temperature. Paddy rice fields account for about 9% of anthropogenic CH4 sources, and elevated CO2 may enhance CH4 production in rice paddies. This study reveals that elevated CO2 promotes anaerobic oxidation of methane coupled to manganese and/or iron oxides reduction in paddy soil, as well as stimulates the growth and metabolism of Candidatus Methanoperedens nitroreducens, contributing to enhanced CH4 consumption.
GLOBAL CHANGE BIOLOGY
(2023)
Article
Multidisciplinary Sciences
Nemanja Komar, Richard E. Zeebe
Summary: The mechanisms behind the long-term trends in carbon cycling during the Cenozoic era include shelf-basin carbonate burial fractionation, proliferation of pelagic calcifiers, and the temperature effect on remineralization rates of marine organic matter. These factors play critical roles in controlling carbon cycle dynamics, challenging the understanding of carbon cycle dynamics.
Article
Ecology
David Rosado-Porto, Stefan Ratering, Massimiliano Cardinale, Corinna Maisinger, Gerald Moser, Marianna Deppe, Christoph Muller, Sylvia Schnell
Summary: This study revealed that elevated atmospheric CO2 concentration significantly influences the metabolic active microbiome in rhizospheric soil, leading to a shift in microbial structure. However, the impact on bulk soil microbiome structure was minimal.
Editorial Material
Multidisciplinary Sciences
Cesar Terrer
Summary: A global synthesis of experiments shows that elevated CO2 levels lead to increased plant biomass, necessitating plants to extract more nutrients from the soil, thereby reducing the soil's ability to store carbon. In forests, elevated CO2 enhances plant growth without a corresponding increase in soil carbon, while grasslands experience small changes in biomass but significant increases in soil carbon.
Review
Biotechnology & Applied Microbiology
Gang Wu, Jinju Geng, Ke Xu, Hongqiang Ren
Summary: This review provides a comprehensive summary of the enhanced removal of pharmaceuticals by ammonia oxidizers during nitrification. It discusses the contribution of AOs on pharmaceuticals removal in pure and mixed microbe systems, proposing activated sludge modeling as an effective measure for assessing this contribution. The review also covers the transformation processes and reaction types involved in pharmaceuticals transformation during nitrification, offering insights on optimizing wastewater biological treatment systems for enhanced removal of pharmaceuticals.
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
(2021)
Article
Environmental Sciences
Yufei Shi, Guochen Shen, Jinju Geng, Yingying Fu, Shengnan Li, Gang Wu, Liye Wang, Ke Xu, Hongqiang Ren
Summary: Pharmaceutically active compounds (PhACs) such as carbamazepine (CBZ), erythromycin (ERY), atenolol (ATL), and clofibric acid (CA) are frequently detected in aquatic environments, raising concerns due to their persistence and ecological risk. The UV/H2O2 advanced oxidation process is effective for removing pharmaceuticals from wastewater. Different degradation rates were observed for the four PhACs studied, and a kinetic model combining steady state concentrations successfully predicted the degradation process of pharmaceuticals.
Article
Ecology
Kailong Huang, Qiaoling Li, Haohao Sun, Xu-Xiang Zhang, Hongqiang Ren, Lin Ye
Summary: Heterotrophic denitrifying sludge harbors diverse mixotrophic denitrifying bacterial species with sulfur- and iron-oxidizing abilities, indicating potential for autotrophic denitrification. The study suggests that organic carbon and inorganic electron donors can be jointly used in engineering practices to balance the cost and efficiency of denitrification processes.
Article
Environmental Sciences
Yuan-Mo Zhu, Hongmin Ji, Hongqiang Ren, Jinju Geng, Ke Xu
Summary: The study found that a static magnetic field of 50 mT had the best effect on enhancing nitrogen removal, especially at high NH4+ concentrations. The biological mechanism by which SMF influences nitrogen removal varies depending on the NH4+ concentration, increasing key enzyme activities and functional gene abundances, as well as improving functional bacterial abundances.
Article
Environmental Sciences
Chong Peng, Xuan Fan, Yujin Xu, Hongqiang Ren, Hui Huang
Summary: The study showed that at low concentrations, rhamnolipids can promote the deposition of macromolecular substances and increase the abundance of Thiobacillus denitrificans, while high concentrations can regulate the biofilm properties and enhance the initial adhesion of the microorganism. Temperature also plays a role in affecting the adhesion of Thiobacillus denitrificans, with low temperatures inhibiting adhesion and low concentrations of rhamnolipids resulting in rigid deposited layers.
Article
Engineering, Environmental
Dingding Wu, Shuhan Huang, Xuxiang Zhang, Hongqiang Ren, Xin Jin, Cheng Gu
Summary: The moisture content on iron mineral surfaces plays a crucial role in catalyzing the hydrolysis of antibiotics; competition of water molecules for reactive sites can inhibit the hydrolytic reaction when the surface water content exceeds 10 wt %. Iron oxides exhibit efficient catalytic performance for antibiotic hydrolysis under limited moisture conditions, with distinctive catalytic processes depending on surface properties.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Engineering, Environmental
Yuan Lin, Liye Wang, Ke Xu, Hui Huang, Hongqiang Ren
Summary: The study found that algae biofilm (AB) is effective in controlling dissolved organic nitrogen (mDON), reducing mDON formation and consuming exogenous mDON. Additionally, cyanobacteria help facilitate mDON uptake, ammonification, and recycling, promoting mDON scavenging.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Green & Sustainable Science & Technology
Cheng Cheng, Jinju Geng, Zhen Zhou, Qingmiao Yu, Rongwei Gao, Yihan Shi, Liye Wang, Hongqiang Ren
Summary: Introducing alternating micro-aerobic/anaerobic conditions and packing carriers into sludge reduction systems can improve sludge reduction efficiency, leading to better effluent pollutant removal and reduced organics bioavailability.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Engineering, Environmental
Jinfeng Wang, Qiuju Liu, Deyuan Dong, Haidong Hu, Bing Wu, Hongqiang Ren
Summary: This study investigated the bacterial QS threshold and response to AHLs in various biofilms through real time cell analysis, revealing that exogenous AHLs significantly improved bacterial adhesion, with long-chain AHLs playing a major role. Additionally, the study observed a wide range of QS bacterial threshold and significant differences in QS response time to AHLs in different biofilms.
Article
Multidisciplinary Sciences
Xi Tang, Yifei Zhang, Weiqi Li, Jinju Geng, Hongqiang Ren, Ke Xu
Summary: A novel Cu/Ce-Al2O3 catalyst was successfully used to catalytically ozonate and remove HA under neutral pH conditions, achieving a TOC removal rate of 54.79% after 30 minutes, significantly higher than ozone alone. Organic compounds were effectively degraded by the catalytic treatment, reducing toxic intermediates produced by ozonation and transforming humic acid substances into biodegradable intermediates.
SCIENTIFIC REPORTS
(2021)
Article
Microbiology
Yuan Lin, Liye Wang, Ke Xu, Kan Li, Hongqiang Ren
Summary: The study identified heterogeneous heavy metal-resistance mechanisms among different taxa in DPRS, highlighting the importance of understanding individual microorganisms' heterogeneity in contributing to metabolic versatility and robustness of microbiomes in dynamic environments. This insight is crucial for manipulating microbial adaptation under adverse environmental stimuli.
Article
Environmental Sciences
Qiuju Liu, Jinfeng Wang, Hongqiang Ren
Summary: This study examined the assembly and succession of bacterial community in a full-scale IFAS process, highlighting the significant impact of pH on bacterial community composition and AHL content. The negative correlation between AHL concentration and community composition variation was observed during biofilm development. Additionally, quorum-quenching bacteria were found to play a key role in mature biofilms, strengthening bacterial cooperation and promoting biofilm development.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Cheng Cheng, Jinju Geng, Haidong Hu, Yihan Shi, Rongwei Gao, Xu Wang, Hongqiang Ren
Summary: The study explored the enhanced effects of alternative aerobic and anaerobic conditions in side-stream reactors on sludge reduction and pollutants removal performance. The results showed improved sludge reduction and carbon reuse in the modified reactors, providing an efficient and cost-saving technology for application in wastewater treatment plants. The cooperation interaction of different microbial populations played a key role in enhancing the overall performance of the treatment system.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Yufei Shi, Shengnan Li, Liye Wang, Qingmiao Yu, Guochen Shen, Juechun Li, Ke Xu, Hongqiang Ren, Jinju Geng
Summary: The study found that ozone treatment in pharmaceutical wastewater is effective in attacking high molecular weight DOM, improving biodegradability. Hydrophobic acids contain the most aromatic and unsaturated bonded organic matter and are more easily oxidized under ozone treatment.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Agricultural Engineering
Haiyue Wang, Ling Peng, Nianjia Mao, Jinju Geng, Hongqiang Ren, Ke Xu
Summary: In this study, it was found that Fe3+ significantly improved the efficiency of the Anammox process, promoted the proliferation of Anammox bacteria, and was positively correlated with nitrogen loading rate and nitrogen removal rate.
BIORESOURCE TECHNOLOGY
(2021)
