Article
Agronomy
Qinghua Li, Lin Zhao, Fei Wang, Hongmei Chen, Xiaojie Qian
Summary: This study investigates the effects of a bamboo-biochar-based fertilizer on soil N2O emissions and nitrifier and denitrifier communities in acidic soil. The results show that the fertilizer promotes soil nitrification, reduces the adverse effects of nitrogen fertilizer, and decreases N2O emissions.
Article
Environmental Sciences
Lin Zhao, Qinghua Li, Xiaojie Qian, Hongmei Chen, Fei Wang, Zhigang Yi
Summary: The study found that different concentrations of biochar-based fertilizer have varying effects on N2O emissions, with lower concentrations having a promoting effect and higher concentrations having an inhibitory effect. N2O emissions were closely related to soil pH, Rhodanobacter (nosZ), and Proteobacteria (nirK). Additionally, the sensitivity of AOA to urea was higher, while the combined application of biochar-based fertilizer significantly restored the diversity of the AOA community.
JOURNAL OF SOILS AND SEDIMENTS
(2022)
Article
Agricultural Engineering
Xu Lin, Naif Abdullah Al-Dhabi, Fanghong Li, Nanyi Wang, Hua Peng, Anwei Chen, Genyi Wu, Jiachao Zhang, Lihua Zhang, Hongli Huang, Binghua Yan, Lin Luo, Wangwang Tang
Summary: This study examined the impact factors of nitrous oxide (N2O) emissions during the incorporation of biochar and biogas residue composting by real-time PCR and sequence processing. The results showed that N2O emissions were associated with the abundance, diversity, and structure of ammonia-oxidizing bacteria (amoA-AOB) and denitrifying fungi (nirK-fungi). The genera Nitrosomonas and Nitrosospira were identified as the dominant drivers of the oxidation process. The community structure of ammonia-oxidizing bacteria was altered by the presence of biogas residue, while the denitrification process primarily controlled by nirK-fungi played a crucial role in N2O production.
BIORESOURCE TECHNOLOGY
(2023)
Article
Ecology
Yi Zhang, Jun Zhao, Xinqi Huang, Yi Cheng, Zucong Cai, Jinbo Zhang, Christoph Mueller
Summary: The research found that soil pH had a significant impact on different N2O production pathways. Under strongly acidic conditions, denitrification and heterotrophic nitrification were the main drivers of increased N2O emissions from soils.
EUROPEAN JOURNAL OF SOIL BIOLOGY
(2021)
Article
Microbiology
Jian-Qing Qi, Hai-Yan Yuan, Qi-Lu Zhuang, Eric-Fru Zama, Xiao-Fei Tian, Bao-Xian Tao, Bao-Hua Zhang
Summary: This study investigates the relationship between different types of biochar, bulk soil, and rhizosphere microbial communities in relation to methane and nitrous oxide emissions. The results show that biochar at 300 degrees C and 10% incorporation significantly increased methane emissions, and the ratio of mcrA/pmoA and the abundance of AOA in bulk soil were the main factors influencing methane emissions. Moreover, the abundance of AOB in bulk soil was found to be the most important predictor influencing nitrous oxide emissions.
FRONTIERS IN MICROBIOLOGY
(2023)
Article
Soil Science
Jiayuan Liao, Ang Hu, Ziwei Zhao, Xiangrong Liu, Chu Jiang, Zhenhua Zhang
Summary: The study showed that the specific surface area of biochar is related to nitrogen emissions and the abundance of nitrogen-metabolizing microbial genes. Biochars with larger specific surface areas can reduce nitrogen emissions, recruit N2O-reducing microbes, and upregulate nitrogen-fixing, nitrifying, and denitrifying genes.
SOIL BIOLOGY & BIOCHEMISTRY
(2021)
Article
Environmental Sciences
Hua Xiang, Yiguo Hong, Jiapeng Wu, Yu Wang, Fei Ye, Zheng Hu, Zhiming Qu, Aimin Long
Summary: In this study, N2O production, reduction, and emission processes in surface sediments of the Pearl River Estuary were analyzed. The results showed that N2O reduction potential increased from upstream to downstream, leading to a decrease in N2O emission rates. NosZ-II-type N2O-reducing bacteria played a dominant role in determining the release potential of N2O in the estuary.
ENVIRONMENTAL POLLUTION
(2023)
Article
Environmental Sciences
Xinhui Wang, Baoyu Xiang, Ji Li, Menghui Zhang, Asa Frostegard, Lars Bakken, Xiaojun Zhang
Summary: This study demonstrates a strategy to engineer the soil microbiome with promising non-denitrifying nitrous oxide-reducing bacteria (NNRB), and shows the potential of these strains in reducing N2O emissions from agricultural soils.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Wei Wei, Kazuo Isobe, Yutaka Shiratori, Midori Yano, Sakae Toyoda, Keisuke Koba, Naohiro Yoshida, Haoyang Shen, Keishi Senoo
Summary: After studying with multiple methods, it was found that the overlooked denitrifying bacteria and fungi were more involved in N2O production than previously thought, and their activities varied under different fertilization practices and types. Proposed a conceptual scheme of N flow based on distinct physiological constraints among diverse NH3 oxidizers and denitrifiers to understand the environmental context-dependent N2O emission processes.
ENVIRONMENTAL POLLUTION
(2021)
Article
Soil Science
Kesia Silva Lourenco, Ohana Yonara de Assis Costa, Heitor Cantarella, Eiko Eurya Kuramae
Summary: This study investigated the impact of different concentrations of organic residue on the dynamics of ammonia-oxidizing bacteria and fungal denitrifiers in tropical soils cultivated with sugarcane. The results showed that the combination of inorganic nitrogen fertilizer and organic residue increased the abundance of AOB and fungal denitrifiers and N2O emissions, but did not affect their diversity and structure.
SOIL BIOLOGY & BIOCHEMISTRY
(2022)
Article
Environmental Sciences
Muhammad Shaaban, Ronggui Hu, Yupeng Wu, Ling Song, Peng Xu
Summary: Soil nitrous oxide (N2O) is produced by abiotic and biotic processes and consumed by denitrifying microbes-encoded by nosZ genes. The response of nosZ (Clade I and Clade II) to pH management in acidic soils needs further research.
ENVIRONMENTAL RESEARCH
(2023)
Article
Soil Science
Arpita Maheshwari, Christopher M. Jones, Maren Tiemann, Sara Hallin
Summary: Agricultural soils are a major source of N2O, a potent greenhouse gas and ozone-depleting substance. The role of carbon availability in shaping the structure of N2O reducing communities in soil has not been explored. Our study shows that the effect of carbon addition on the abundance and diversity of N2O reducing genes varies with different carbon substrates in contrasting soil types, highlighting the importance of specific carbon substrates in selecting certain lineages of N2O reducers.
SOIL BIOLOGY & BIOCHEMISTRY
(2023)
Article
Ecology
Xin Sun, Amal Jayakumar, John C. Tracey, Elizabeth Wallace, Colette L. Kelly, Karen L. Casciotti, Bess B. Ward
Summary: The study expands N2O consumption measurements from anoxic zones to oxic waters, revealing differences in the characteristics of N2O-consuming microbes. Experimental results suggest that microbes in the dynamic layer with steep oxygen and N2O gradients above the oxygen deficient zone play a significant role in N2O consumption.
Article
Environmental Sciences
Xiangzhou Zheng, Baoling Guo, Hongshan Liu, Yiqun Wu, Juhua Yu, Hong Ding, Xiuhong Jiang, Quanda Luo, Yushu Zhang
Summary: Nitrous oxide (N2O) is an important greenhouse gas, and it is mainly emitted and absorbed by soils. This study investigated the effects of soil pH on N2O emission and uptake. The results showed that low soil pH inhibits the nosZ genes involved in N2O consumption, while N2O uptake is not affected. Furthermore, there is evidence of N2O absorption at the soil-atmosphere interface.
JOURNAL OF SOILS AND SEDIMENTS
(2023)
Article
Microbiology
Xia Li, Ruotong Zhao, Dandan Li, Guangzhou Wang, Shuikuan Bei, Xiaotang Ju, Ran An, Long Li, Thomas W. Kuyper, Peter Christie, Franz S. Bender, Ciska Veen, Marcel G. A. van der Heijden, Wim H. van der Putten, Fusuo Zhang, Klaus Butterbach-Bahl, Junling Zhang
Summary: This study demonstrates that the cooperation between AMF and N2O-reducing Pseudomonas on hyphae significantly reduces N2O emissions. The presence of AMF enhances the abundance of N2O-reducing bacteria, specifically Pseudomonas, which leads to a decrease in N2O emissions. The organic acids exuded by hyphae not only attract Pseudomonas, but also stimulate the expression of the nosZ gene, promoting N2O reduction.
Article
Environmental Sciences
Wenzhao Zhang, Chunmei Yin, Chunlan Chen, Anlei Chen, Xiaoli Xie, Xingan Fu, Haijun Hou, Wenxue Wei
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2016)
Article
Agriculture, Multidisciplinary
Wenzhao Zhang, Rong Sheng, Miaomiao Zhang, Guiyun Xiong, Haijun Hou, Shuanglai Li, Wenxue Wei
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2018)
Article
Soil Science
Zhang Wen-Zhao, Chen Xiao-Qin, Zhou Jian-Min, Liu Dai-Huan, Wang Huo-Yan, Du Chang-Wen
Article
Ecology
Rong Sheng, Ke Li, Wenzhao Zhang, Hai Wang, Honglin Liu, Xiaoya Zhu, Hongxin Wu, Xiaoqing Zhang, Qimei Lin, Xuecheng Sun, Yafang Tang, A. Lamus, Wenxue Wei
ECOLOGY AND EVOLUTION
(2019)
Article
Microbiology
Huifang Xu, Rong Sheng, Xiaoyi Xing, Wenzhao Zhang, Haijun Hou, Yi Liu, Hongling Qin, Chunlan Chen, Wenxue Wei
FRONTIERS IN MICROBIOLOGY
(2019)
Article
Soil Science
Xing Chen, Yi Liu, Chunmei Liu, Wenzhao Zhang, Hongling Qin, Rong Sheng, Wenxue Wei
Summary: The composition of nitrate-reducing bacteria communities in agricultural ecosystems can be significantly influenced by fertilization, with bacteria adapted to nutrient-rich environments showing faster growth and higher nitrite production. Conversely, bacteria isolated from nutrient-poor conditions demonstrate a stronger ability to produce nitrites in diluted growth medium, suggesting their capability to develop under nutrient-limiting conditions. This study highlights the importance of behaviors and functions of nitrate reducers in adapting to their specific habitats.
CANADIAN JOURNAL OF SOIL SCIENCE
(2021)
Article
Soil Science
Wenzhao Zhang, Hanchang Zhou, Rong Sheng, Hongling Qin, Haijun Hou, Yi Liu, Anlei Chen, Chunlan Chen, Wenxue Wei
Summary: Soil aggregates play a crucial role in regulating soil biological processes, with smaller aggregates emitting higher N2O fluxes. Different soil aggregate sizes have varying microbial community compositions and abundances under different soil moisture conditions. Soil aggregates influence N2O emissions by altering the abundance and community compositions of nitrifiers and denitrifiers.
Article
Environmental Sciences
Anlei Chen, Wenzhao Zhang, Rong Sheng, Yi Liu, Haijun Hou, Fei Liu, Guohui Ma, Wenxue Wei, Hongling Qin
Summary: Reducing mineral fertilizer and retaining in situ crop residue can maintain rice yield and soil fertility levels in southern China, leading to improved nutrient utilization efficiency.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Agriculture, Multidisciplinary
Zhang Wen-zhao, Chen Xiao-qin, Wang Huo-yan, Wei Wen-xue, Zhou Jian-min
Summary: Long-term straw return has a significant impact on the adsorption and fixation of ammonium in microaggregates of the soil. It increases the soil organic carbon content and enhances ammonium adsorption, but inhibits ammonium fixation. By increasing the soil organic carbon content, long-term straw return can influence the adsorption and fixation of ammonium, improve nitrogen utilization in crops.
JOURNAL OF INTEGRATIVE AGRICULTURE
(2022)
Article
Ecology
Risheng Xu, Ke Li, Wenzhao Zhang, Anlei Chen, Haijun Hou, Wenxue Wei, Rong Sheng
Summary: Endophytic bacteria play important roles in plant growth and development. This study investigated the effects of soil phosphorus (P) nutrition on plant endophytic bacterial communities and their functions. It was found that under P deficiency conditions, rice roots recruited more endophytic bacteria belonging to Proteobacteria with plant growth-promoting functions. However, after 21 days, the seedling growth was severely restricted and Firmicutes became the predominant root endophytic bacteria. The putative functions of Firmicutes were related to detoxification. Additionally, the cooperation of endophytic bacterial communities was strengthened under P deficiency stress.
EUROPEAN JOURNAL OF SOIL BIOLOGY
(2022)
Article
Soil Science
Lianchun Yi, Rong Sheng, Wenxue Wei, Baoli Zhu, Wenzhao Zhang
Summary: This study estimated the potential contributions of various electron donors to denitrification in paddy soil during the flooding-drying process. The results showed that autotrophic denitrification driven by Fe2+ and Mn(2+) was the main mechanism for gaseous N-loss during the first phase of drying, while other electron donors, including organic matter, were the major contributors for denitrification in the second phase.
APPLIED SOIL ECOLOGY
(2022)
Article
Ecology
Jinbo Liu, Haijun Hou, Wenzhao Zhang
Summary: This study found that both bacteria and fungi contribute to nitrous oxide (N2O) emissions through denitrification in paddy soils, but their contributions vary with soil texture. Fungi had a greater contribution to N2O emission flux and production potential than bacteria in loam and clay soils. Moreover, their contributions were higher in clay soil compared to loam soil. Therefore, the role of fungal denitrification in N2O emissions from paddy soils should be further investigated.
EUROPEAN JOURNAL OF SOIL BIOLOGY
(2023)
Article
Soil Science
Rong Sheng, Huifang Xu, Xiaoyi Xing, Wenzhao Zhang, Haijun Hou, Hongling Qin, Yi Liu, Limei Zhang, Yunting Fang, Jupei Shen, Jakob Pernthaler, Wenxue Wei, Baoli Zhu
Summary: The influence of parent materials on soil bacterial communities in agricultural soils was investigated. Different soil types were found to support distinct bacterial communities. The characteristics inherited from parent materials explained more of the variation in bacterial community structure than soil management variables and climate conditions.
Article
Soil Science
Chunmei Liu, Wenzhao Zhang, Haijun Hou, Rujia Liao, Wenxue Wei, Rong Sheng
Summary: This study found that the function and distribution pattern of N2O-reducing bacteria in different land use types varies. Additionally, agricultural practices significantly increased the abundance and capacity of N2O reducers. Among all land use types, the abundance of nosZII was significantly higher than nosZI.
APPLIED SOIL ECOLOGY
(2023)