Article
Environmental Sciences
Yu Xiao, Chunping Yang, Jay J. Cheng
Summary: This study investigated the effects of sulfamethazine (SMZ) and cupric ion on the removal of NH4+-N and total phosphorus (TP) from anaerobically digested swine wastewater (ADSW) by duckweed. Duckweed showed excellent nutrient removal efficiency and tolerance to SMZ stress. However, the combined application of SMZ and cupric ion inhibited nutrient removal while increasing the contents of photosynthetic pigments, proteins, and vitamin E. Potential degradation pathways of SMZ in the duckweed system were proposed. This research provides a novel approach for nutrient removal and value-added product production using the duckweed system under the stress of SMZ and cupric ion.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2022)
Article
Microbiology
Jie Tang, Lian-Ming Du, Meijin Li, Dan Yao, Ying Jiang, Malgorzata Waleron, Krzysztof Waleron, Maurycy Daroch
Summary: The study describes several strains of filamentous cyanobacteria from different, primarily cold environments, belonging to the genus Leptodesmis. The complete genome of a novel hot-spring strain, Leptodesmis sp. PKUAC-SCTA121 (A121), isolated from Erdaoqiao hot springs in China, was sequenced. The results confirm the establishment of a new species within Leptodesmis, named Leptodesmis sichuanensis sp. nov. The study also provides the first insight into the genomic features of the genus Leptodesmis and lays the foundation for future global ecogenomic and geogenomic studies.
FRONTIERS IN MICROBIOLOGY
(2022)
Article
Environmental Sciences
Shaohua Wu, Chunping Yang, Yan Lin, Jay J. Cheng
Summary: The study thoroughly examined the degradation of tetracycline (TC) in the constructed Co-N/C-PMS system, finding that the removal rate of TC reached 85.4% when Co-N/C and PMS were added simultaneously, with a higher degradation rate compared to using Co-N/C or PMS alone. The system was identified as a singlet oxygen-dominated nonradical reaction, providing a promising approach for eliminating TC in water treatment.
JOURNAL OF ENVIRONMENTAL SCIENCES
(2022)
Article
Environmental Sciences
Chunfang Deng, Renxin Zhao, Zhiguang Qiu, Bing Li, Tong Zhang, Feng Guo, Rong Mu, Yang Wu, Xuejiao Qiao, Liyu Zhang, Jay J. Cheng, Jinren Ni, Ke Yu
Summary: This study recovered 1168 non-redundant metagenome-assembled genomes (MAGs) from landfill leachate samples in China, discovering new microbial taxa and carbohydrate-active enzymes. The methane production pathway and dissimilatory nitrate reduction to ammonium pathway were speculated and observed, respectively, in landfill leachate microbiota.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Biotechnology & Applied Microbiology
Shuangfei Li, Xianglan Chen, Ming Hung Wong, Huirong Chen, Li Tao, Guangyu Liufu, Jay Jiayang Cheng, Xuewei Yang
Summary: Desmodesmus sp.YT, rich in bioactive substances, showed impressive tolerance to various environmental conditions. This study investigated the metabolic transformation influenced by salt stress in Desmodesmus sp.YT through analysis of biochemical compositions and comparative transcriptome. Results showed that normal treatment enhanced biomass and protein production, while salt stress stimulated cellulose and starch biosynthesis. Desmodesmus sp.YT cultured in freshwater could be used as feed additives, while microalgae grown in seawater had potential for biofuel production.
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2022)
Article
Microbiology
Sadaf Riaz, Ying Jiang, Meng Xiao, Dawei You, Anna Klepacz-Smolka, Faiz Rasul, Maurycy Daroch
Summary: This study optimized the cultivation and natural transformation protocol for the important cyanobacterium Synechococcus elongatus PCC 7942. By adjusting agar concentration and overexpressing catalase gene, the growth of Synechococcus 7942 on solid media was improved. High temperature and phosphate depletion conditions resulted in fewer genome copies and potential to produce fully segregated mutants. Higher antibiotic concentrations improved the selection of homozygous transformants.
FRONTIERS IN MICROBIOLOGY
(2022)
Article
Biophysics
Nikhil Aggarwal, Yuanmei Liang, Jee Loon Foo, Hua Ling, In Young Hwang, Matthew Wook Chang
Summary: FELICX is a new nucleic acid detection technique that is rapid, sensitive, and easy to use. It can detect nucleic acids and single-nucleotide polymorphisms, and can be used as a point-of-care test with minimal temperature requirements. FELICX also has the ability to probe any base pair, unlike other CRISPR technologies.
BIOSENSORS & BIOELECTRONICS
(2023)
Article
Agricultural Engineering
Wenkai Nie, Yan Lin, Xin Wu, Shaohua Wu, Xiang Li, Jay J. Cheng, Chunping Yang
Summary: In this study, chitosan-Fe3O4 was prepared and its effects on anaerobic digestion processes under acid stress were investigated. The results revealed that chitosan-Fe3O4 significantly increased the methanogenesis rate and accelerated the restoration of acidified anaerobic systems. The analysis of sludge characteristics indicated that chitosan-Fe3O4 promoted the secretion of proteins and humic substances, and enhanced the electron transfer activity of the system. Microbial community analysis showed that chitosan-Fe3O4 enriched the abundance of Peptoclostridium and facilitated direct interspecies electron transfer. These findings suggest that chitosan-Fe3O4 can be used to improve the efficiency of anaerobic digestion of high concentration organic wastewater under acid inhibition conditions.
BIORESOURCE TECHNOLOGY
(2023)
Article
Biochemical Research Methods
Lianming Du, Chaoyue Geng, Qianglin Zeng, Ting Huang, Jie Tang, Yiwen Chu, Kelei Zhao
Summary: Molecular docking is a crucial approach in drug discovery and pharmaceutical research, and Dockey is a flexible and intuitive graphical interface tool that automates docking and analysis of large-scale ligands and receptors in parallel.
BRIEFINGS IN BIOINFORMATICS
(2023)
Article
Environmental Sciences
Chengxi Li, Yan Lin, Xiang Li, Jay J. Cheng, Chunping Yang
Summary: Hormesis has been a topic of concern in the environmental and toxicological communities. Previous studies have focused on the hormesis induced by stressors in terms of their biotoxicity, but little research has been done on hormesis in the context of biological wastewater treatment processes. In this study, the removal of NH4+-N and Cu2+ by S. polyrrhiza was investigated under long-term exposure to environmentally relevant concentrations of Cu2+ in swine wastewater. The results showed that long-term exposure to Cu2+ enhanced the removal of NH4+-N by S. polyrrhiza, and previous exposure to low doses of Cu2+ significantly improved the removal efficiency in a second exposure.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Biology
Jie Tang, Dan Yao, Huizhen Zhou, Mingcheng Wang, Maurycy Daroch
Summary: This study investigated the structure and architecture of two-component systems (TCSs) in 17 thermophilic cyanobacteria and revealed their complex and diverse nature. The results showed a unique composition of TCS genes in these cyanobacteria, which were possibly associated with various functions. Horizontal gene transfer and gene duplication events might have played a role in the evolutionary history of TCS genes in certain genera. These findings highlight the potential of thermophilic cyanobacteria genomes for adapting to environmental fluctuations.
Article
Agricultural Engineering
Zhiwei Huang, Qiuya Niu, Wenkai Nie, Yan Lin, Shaohua Wu, Xiang Li, Jay J. Cheng, Chunping Yang
Summary: The high concentrations of antibiotics in swine wastewater may have potential adverse effects on anaerobic digestion (AD). Previous studies focused on the effects of antibiotic concentrations but did not consider the fluctuation of swine wastewater quality and reactor operating conditions in practical engineering applications. This study found that continuous addition of oxytetracycline for 30 days had no effect on AD performance in systems with COD of 3300 mg/L and HRT of 4.4 days. However, when COD and HRT were changed to 4950 mg/L and 1.5 days respectively, oxytetracycline at different concentrations had varying effects on methane yield and cell membrane.
BIORESOURCE TECHNOLOGY
(2023)
Article
Food Science & Technology
Wei Luo, Jinqiu Wang, Yan Chen, Yixu Wang, Rui Li, Jie Tang, Fang Geng
Summary: In this study, the survival mechanism of Salmonella treated with high-intensity ultrasound was explored. It was found that Salmonella could tolerate the stress of ultrasound by upregulating their environmental sensing, chemotaxis, substance uptake, and ATP production.
CURRENT RESEARCH IN FOOD SCIENCE
(2022)
Article
Agricultural Engineering
Lillian Lower, Julia Cunniffe, Jay J. Cheng, William Joe Sagues
Summary: Achieving a circular economy and developing carbon negative technologies are crucial for sustainable development. Applying precision and regenerative agriculture as well as biorefining to food and agriculture systems can help achieve circularity and reduce carbon emissions.
JOURNAL OF THE ASABE
(2022)
