Article
Biotechnology & Applied Microbiology
Harmanpreet Sidhu, Hee-Sung Bae, Andrew Ogram, George O'Connor, Fahong Yu
Summary: This study found that biosolids contain transcriptionally active antibiotic resistance genes and mobile elements, which could survive and spread in biosolids-amended soil, highlighting the need for further research in real-world conditions.
APPLIED AND ENVIRONMENTAL MICROBIOLOGY
(2021)
Article
Environmental Sciences
Ajith Dias Samarajeewa, Jessica R. Velicogna, Dina M. Schwertfeger, Matthew J. Meier, Renuka M. Subasinghe, Juliska I. Princz, Rick P. Scroggins, Lee A. Beaudette
Summary: Increased use of nano-cerium oxide (nCeO(2)) in industrial applications has raised concerns about its potential effects on the soil microbial community. This research found that nCeO(2) did not consistently inhibit critical microbial processes such as organic matter decomposition and nitrification. However, soluble Ce had significant effects on these processes, indicating that the behavior of nCeO(2) differs from soluble Ce. This study provides valuable information for understanding the behavior and effects of nCeO(2).
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Zheng-Rong Kan, Shou-Wei Han, Wen-Xuan Liu, Xin Zhao, Rattan Lal, Hai-Lin Zhang
Summary: The study found that δC-13(SOC) can be used to distinguish the contributions of C3 and C4 plants in rotations; no tillage favored the preservation of wheat carbon, particularly at 10-20 cm depth.
ENVIRONMENTAL CHEMISTRY LETTERS
(2022)
Article
Engineering, Environmental
Ebrahem M. Eid, Kamal H. Shaltout, Saad A. M. Alamri, Sulaiman A. Alrumman, Ahmed A. Hussain, Nasser Sewelam, Ahmed F. El-Bebany, Ahmed H. Alfarhan, Yolanda Pico, Damia Barcelo
Summary: This study aimed to design prediction models to assess the uptake of eight heavy metals by tomato plants. The research found that most heavy metals had translocation factors below 1 within the plant, with bioconcentration factors mostly at 1. The models showed high accuracy in predicting heavy metal uptake, facilitating safe cultivation of tomato plants and providing human health risk assessments.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Engineering, Environmental
Weiwei Zhai, Yanyue Ma, Su Yang, Williamson Gustave, Tiantian Zhao, Muhammad Zaffar Hashmi, Xiangliang Pan, Xianjin Tang
Summary: Rice straw amendment promotes arsenic methylation and methane emissions from paddy soils, which can cause straighthead disease and climate warming. The mechanism of these microbial groups on arsenic methylation in paddy soils with rice straw amendment remains unknown.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Infectious Diseases
Xinjun Li, Kristina Sundquist, Filip Jansaker
Summary: This study used nationwide primary healthcare data to explore antibiotic treatments for cystitis and investigate factors beyond the infection. The results showed that the trends of specific classes of antibiotics redeemed within five days from the diagnosis were similar to the national surveillance program. Factors such as sociodemographic factors were weakly associated with antibiotic treatment.
Article
Food Science & Technology
Obey Kudakwashe Zveushe, Qin Ling, Xing Li, Sumbal Sajid, Victor Resco de Dios, Farhan Nabi, Ying Han, Faqin Dong, Fang Zeng, Lei Zhou, Songrong Shen, Wei Zhang, Zhi Li
Summary: Cadmium contamination is a significant problem for both plants and human health in China. Finding a way to cultivate safe and high-yielding rice in Cd-contaminated alkaline soils remains a challenge. Through small-scale and large-scale field experiments, it was concluded that a combination of humic acid, foliar and soil silicate fertilization, and shallow plowing produced the best results in terms of low soil bioavailable Cd, low grain Cd concentrations, and high grain yield. Rice farmers are advised to adopt this combination for high-yield, low Cd rice production in alkaline soils.
Article
Soil Science
Newton Z. Lupwayi, H. Henry Janzen, Eric Bremer, Elwin G. Smith, Derrick A. Kanashiro, Andrea H. Eastman, Renee M. Petri
Summary: Long-term field trials are ideal for studying soil microbial communities, as they evolve over time in a specific cropping system. This study found that crop rotation influenced microbial biomass carbon, with continuous wheat showing higher levels compared to other rotations. Fertilizer application increased soil microbial biomass carbon by 21%, while soil moisture deficit had no effect on the soil microbiome.
Article
Agriculture, Multidisciplinary
Peng Xu, Mengdie Jiang, Imran Khan, Muhammad Shaaban, Jinsong Zhao, Tewu Yang, Ronggui Hu
Summary: This study investigated the effects of different upland crop plantations on field N2O emissions during the rice-growing period in China. Results showed that seasonal N2O emissions were higher in the treatments with non-rice crops compared to conventional rice planting. Soil-dissolved organic carbon, ammonium, nitrate, and functional genes were identified as key factors controlling N2O emissions. A structural equation model revealed that field flood depth, soil available carbon and nitrogen, and the abundance of certain genes significantly impacted N2O emissions.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2023)
Article
Environmental Sciences
Yi Jiang, Hang Zhou, Jiao-Feng Gu, Peng Zeng, Bo-Han Liao, Yun-He Xie, Xiong-Hui Ji
Summary: The study found that the addition of a combined amendment can decrease the uptake of cadmium and arsenic in paddy fields with moderate to high contamination levels, resulting in improved soil health and brown rice quality.
ENVIRONMENTAL POLLUTION
(2022)
Article
Engineering, Environmental
Kushneet Kaur Sodhi, Dileep Kumar Singh
Summary: The presence of antibiotics in wastewater has ecotoxicological effects on living beings, especially fluoroquinolones. Research is focusing on finding effective methods for removing these antibiotics to prevent harm to the environment and living organisms.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Multidisciplinary Sciences
Jorge Antonio Silva-Leal, Andrea Perez-Vidal, Patricia Torres-Lozada
Summary: The application of biosolids improves soil nutrient availability and crop productivity but must be carefully evaluated to avoid contamination. Biosolid treatments exceeded the phosphorus requirement for sugarcane cultivation, leading to excessive soil phosphorus content.
Review
Infectious Diseases
Audray St-Jean, Dan Chateau, Matthew Dahl, Pierre Ernst, Nick Daneman, Ingrid S. Sketris, Jianguo Zhang, Fawziah Marra, Jacqueline Quail, Shawn Bugden
Summary: Fluoroquinolones are commonly used as first-line therapies for uncomplicated UTI and AECOPD in outpatient settings in Canada, but their use varies widely across provinces. The proportion of fluoroquinolones for treating uncomplicated UTI and ABS events has declined over time, while remaining relatively stable for AECOPD.
BMC INFECTIOUS DISEASES
(2021)
Article
Engineering, Environmental
Liang Wan, Yixiao Wu, Benhao Zhang, Wenfeng Yang, Huijun Ding, Weihao Zhang
Summary: The study revealed that MOX and GAT had significant effects on the growth, photosynthesis, and oxidative stress of Microcystis aeruginosa, indicating potential ecological risks at actual environmental concentrations.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Agronomy
Sabah Morsy, Ibrahim S. Elbasyoni, Stephen Baenziger, Ahmed M. Abdallah
Summary: Gypsum amendment has a positive impact on the growth, yield, and mineral absorption of salt-sensitive and tolerant wheat cultivars in both normal and saline-sodic soils. Gypsum amendment reduces soil salinity, increases the content of Ca2+, Mg2+, and K+, and decreases the content of Na+ and Cl-.
JOURNAL OF AGRONOMY AND CROP SCIENCE
(2022)
Article
Agriculture, Multidisciplinary
Pengjie Hu, Feng Tu, Simin Li, Yunjun Pan, Cheng Kong, Xumei Zhang, Shaohua Wang, Yongquan Sun, Dan Qiu, Longhua Wu, Yongming Luo, Peter Christie
Summary: Wheat is a crucial staple food crop, and ensuring the safe and environmentally friendly production of wheat is essential for human safety and health. This study conducted field experiments and investigations in southern Jiangsu province to screen wheat varieties with low cadmium accumulation and to establish soil cadmium safety thresholds.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2023)
Article
Geosciences, Multidisciplinary
Shaojun Qiu, Huiyi Yang, Shuiqing Zhang, Shaomin Huang, Shicheng Zhao, Xingpeng Xu, Ping He, Wei Zhou, Ying Zhao, Na Yan, Nikolaos Nikolaidis, Peter Christie, Steven A. Banwart
Summary: This study investigates the effects of different fertilization practices on soil structure and aggregate organic carbon (OC) stocks. The results show that under a wetter climate and increasing soil moisture, soil OC stocks will increase in all three treatments, with the strongest increase under the combined manure and chemical fertilization treatment. Furthermore, changes in microaggregate OC stocks contribute significantly to the overall change in total SOC stocks.
Article
Environmental Sciences
De Bi, Beibei Wang, Zhu Li, Yabing Zhang, Xin Ke, Chengwang Huang, Wuxing Liu, Yongming Luo, Peter Christie, Longhua Wu
Summary: Microplastic pollution is a significant environmental concern on the east coast of China, with farmland showing the highest abundance due to high population density and agricultural activities.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Leizhen Rao, Decheng Gu, Xingjia Xiang, Jun Zeng, Yucheng Wu, Xiangui Lin, Peter Christie
Summary: Lignin, a complex biopolymer, can enhance the degradation of soil pollutants, but the contribution of its constituents to this process is not well understood. This study found that vanillate and p-hydroxybenzoate significantly promoted the mineralization of polycyclic aromatic hydrocarbons (PAHs), while methanol had no effect. The different constituents of lignin also had different effects on the soil bacterial community. Overall, lignin had extensive impacts on bacterial diversity, composition, and the fate of PAHs.
ENVIRONMENTAL POLLUTION
(2023)
Article
Engineering, Environmental
Jiawen Zhou, Rebekah E. T. Moore, Mark Rehkamper, Katharina Kreissig, Barry Coles, Yufang Sun, Zhu Li, Yongming Luo, Peter Christie, Longhua Wu
Summary: This study used stable isotope analysis to investigate the interactions between cadmium (Cd) and zinc (Zn) in the metal hyperaccumulating plant Sedum plumbizincicola. The results showed that the enrichment of light isotopes of both elements in plants was less pronounced at low metal supply levels. Furthermore, the study found that the interactions between the two metals influenced the uptake and transport mechanisms of Cd, but had little effect on those of Zn.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Green & Sustainable Science & Technology
Zhu Li, Xi Sun, Jiawen Zhou, Longhua Wu, De Bi, Jie Zhao, Renfeng Zhu, Peter Christie
Summary: Metal pollution in Chinese agricultural soils is a significant concern, and remediation is needed for many soils. The combination of photovoltaic power generation and phytoextraction could be a novel and potential option for contaminated arable land, if they can work effectively together. A three-year field study found that shading by PV panels did not inhibit the growth or metal uptake of the hyperaccumulator plant species Sedum plumbizincicola. Phytoextraction under the PV panels effectively removed high amounts of Cd and Zn, with the hyperaccumulator taking up 3.40 and 96.2 kg ha-1 of Cd and Zn, respectively, over three seasons. This study concludes that combining soil phytoextraction with PV electricity generation can achieve soil remediation and energy production.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Engineering, Environmental
Ke Zhao, Yuying Yang, Jinyu Hou, Haozhe Liu, Yun Zhang, Qingling Wang, Peter Christie, Peishi Qi, Wuxing Liu
Summary: Chlorinated aliphatic hydrocarbons (CAHs) are potentially toxic substances that have been commonly found in contaminated environments. This study investigates the composition, function, and assembly of soil bacteria in an aged CAH-contaminated site using high-throughput sequencing analysis. The presence of organohalide-respiring bacteria (OHRB) is crucial in reducing the environmental stress of CAHs and improving the diversity and stability of the bacterial community. The findings suggest that the metabolic community in deep soil can potentially contribute to the monitored natural attenuation technology for CAH-contaminated sites.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Agronomy
Shuhui Wang, Yinli Bi, Peter Christie
Summary: Dark septate endophytes (DSE) are fungi that promote seed germination and seedling growth in many plants. This study investigated the effects of DSE extracellular metabolites on maize growth, nutrient uptake, root development, and root exudation. The results showed that DSE extracellular metabolites cultured for 12 days had the most beneficial effects on maize biomass, chlorophyll content, root development, and nutrient uptake. Metabolomic analysis of maize root exudates revealed changes in lipid and organic acid content, and pathway analysis indicated their influence on specific metabolic processes. These findings suggest that DSE extracellular metabolites have potential as plant growth stimulators and can affect various metabolic processes in maize roots.
Article
Environmental Sciences
Tong Zhou, Hao Huang, Tingting Mu, Yuyang Wang, Jiawen Zhou, Xinyang Li, Longhua Wu, Peter Christie
Summary: Pot and column experiments were conducted to study the effect of rainfall simulation on soil Cd leaching during phytoextraction by S. plumbizincicola. The results showed that soil Cd leaching increased with increasing rainfall intensity, but decreased under weak rainfall conditions. Overall, S. plumbizincicola had a controlled effect on soil Cd leaching during Cd uptake.
INTERNATIONAL JOURNAL OF PHYTOREMEDIATION
(2023)
Article
Environmental Sciences
Yinli Bi, Mingchao Li, Xinpeng Du, Peter Christie
Summary: Vegetation restoration and microbial restoration have positive effects on the development of soil aggregates and the accumulation of soil organic carbon (SOC) in reclaimed mine soil. In a 4-year field experiment, artificial restoration and AMF inoculation were found to increase OC, TGRSP contents, and & delta;C-13 values in deep soil. Carbon flows were influenced by different restoration modes, with artificial restoration inoculated with AMF showing a pattern of carbon flow from macroaggregates to microaggregates. TGRSP content, SOC content, and & delta;C-13 value were significantly correlated, suggesting the potential association between SOC sequestration and TGRSP. Overall, artificial restoration inoculation with AMF showed great potential in promoting aggregate carbon flow and persistent SOC accumulation.
LAND DEGRADATION & DEVELOPMENT
(2023)
Article
Ecology
Yi Yang, Yongliang Chen, Wenying Hao, Hanjie Xie, Yabo Chai, Lu Zhang, Zhiming Zhang, Peter Christie, Xiaolin Li, Jingping Gai
Summary: Soil bacteria play a crucial role in regulating soil carbon and nutrient cycling. However, their response to disturbance in different land-use types, particularly in alpine ecosystems, remains largely unknown. In this study, the potential of soil bacteria to influence biogeochemical processes was assessed across different land-use types on the Tibetan Plateau. The results showed that disturbance had diverse effects on soil bacterial community composition and metabolic potential. Certain bacterial taxa were found to be sensitive to disturbance, while others remained relatively stable. These findings highlight the importance of considering the effects of disturbance on soil bacteria in ecosystem management and policy decisions.
ECOSYSTEM HEALTH AND SUSTAINABILITY
(2023)
Article
Environmental Sciences
Manping Liu, Zhu Li, Simin Li, Fang Liang, Chengwang Huang, Hui Pan, Jie Wu, Siyao Liu, Limin Pu, Peter Christie, Jing Song, Paul Henning Krogh, Xin Ke, Yongming Luo, Longhua Wu
Summary: Soil pollution poses a threat to soil biodiversity and human health, but there are still many unknowns about the impact of heavy metal pollution on soil mite communities and their distribution in areas with complex environmental factors.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Xian'an Yu, Tingting Mu, Tong Zhou, Yujuan Huang, Hong Chen, Changxun Dong, Longhua Wu, Peter Christie
Summary: This study investigated the interactions and transformation processes of co-existing hexavalent chromium (Cr(VI)) and imidacloprid (IMI) contaminants in soils. The results showed that IMI had little influence on the aging process of Cr(VI), while Cr(VI) had significant effects on the transformation process of IMI.
JOURNAL OF SOILS AND SEDIMENTS
(2023)
Article
Environmental Sciences
Yuyang Wang, Tong Zhou, Wenyong Wang, Jie Zhao, Zhu Li, Yanyan Ge, Zhaoyang Wang, Longhua Wu, Peter Christie
Summary: Phytoextraction with Sedum plumbizincicola is an effective environmental remediation technique for removing high levels of Cd from polluted soils. This study conducted a field experiment in Yunnan province, China, and found that variations in soil properties can significantly influence the efficiency of phytoextraction.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Environmental
Jiawen Zhou, Rebekah E. T. Moore, Mark Rehkamper, Katharina Kreissig, Barry Coles, Longhua Wu, Yongming Luo, Peter Christie
Summary: Soil particle size significantly affects metal distribution and stable isotopic behavior. Cadmium and zinc concentrations are generally enriched in finer particles and positively correlated with iron and manganese oxide contents. Metal isotopic fingerprinting provides insights into metal retention mechanisms, metal sources, and biogeochemical processes within soil micro-zones.
JOURNAL OF HAZARDOUS MATERIALS
(2024)