Eichhornia crassipes Cleans Wetlands by Enhancing the Nitrogen Removal and Modulating Denitrifying Bacteria Community
文献类型: 外文期刊
第一作者: Yi, Neng
作者: Yi, Neng;Long, Xiao-hua;Shao, Hong-bo;Yan, Shao-hua;Yi, Neng;Gao, Yan;Zhang, Zhi-yong;Guo, Jun-yao;Zhang, Zhen-hua;Yan, Shao-hua;Shao, Hong-bo
作者机构:
关键词: Denitrification gene;DGGE;15N Stable isotope tracing;qPCR;Water hyacinth cleaning
期刊名称:CLEAN-SOIL AIR WATER ( 影响因子:1.77; 五年影响因子:1.955 )
ISSN: 1863-0650
年卷期: 2014 年 42 卷 5 期
页码:
收录情况: SCI
摘要: The role of floating macrophytes on modulating the microbial nitrogen removal is not well understood. In this study, the cultivation of Eichhornia crassipes in eutrophic water may affect the nitrogen (N) fate by modulating the denitrifying bacteria diversity and abundance. The gaseous N losses via denitrification were estimated by 15N stable isotope tracing and the diversity and abundance of denitrifying genes (nirS, nirK, and nosZ) were investigated by molecular tools. The denaturing gradient gel electrophoresis (DGGE) profiles showed that the diversity of denitrifying genes in the treatments with E. crassipes was significantly higher than that in the treatment without E. crassipes. The real-time PCR (qPCR) results showed the trend of denitrifier abundance in the entire system was in the order of N-ER (nitrate with just root of E. crassipes) and A-ER (ammonia with just root of E. crassipes)>N-R (nitrate with E. crassipes) and A-R (ammonia with E. crassipes)>N-W (nitrate without plant) and A-W (ammonia without plant). The gaseous 15N losses via denitrification were significantly and positively related to the abundance of nirK, nirS, and nosZ genes. The results indicated that cultivation of E. crassipes in eutrophic water could increase the diversity and abundance of denitrifying bacteria, resulting in more N being removed as gases via denitrification.
分类号:
- 相关文献
作者其他论文 更多>>
-
Phosphogypsum and biosynthesized selenium nanoparticles synergistically mitigate cadmium contamination and promote maize growth in wastewater-irrigated alkaline soil
作者:Alharbi, Khadiga;Gao, Yan;Hafez, Emad M.;Gao, Yan;Hafez, Emad M.;Elatafi, Essam;Omara, Alaa El-Dein;Gadow, Samir I.;Osman, Hany S.;Alshaal, Tarek;Alshaal, Tarek;Rashwan, Emadelden;Hafez, Emad M.
关键词:Alkaline soil; Antioxidant enzymes activity; Cadmium stress; Nutritional content; Soil chemical properties; Oxidative stress
-
Multi-omics analysis of Trichoderma reesei mutant with high glucanase activity
作者:Wang, Na;Lin, Qing;Wang, Zihan;Shi, Honglin;Gao, Yan;Zen, Jun;Lou, Kai;Huo, Xiangdong;Wang, Na;Lin, Qing;Wang, Zihan;Shi, Honglin;Gao, Yan;Zen, Jun;Lou, Kai;Huo, Xiangdong;Wang, Na
关键词:
Trichoderma reesei ; beta-glucanase; Metabolomics; Transcriptomics -
Control locations confuse evaluation of passivation effects of iron-based biochar and selenium applications on wheat grain cadmium accumulation in a Cd-contaminated weakly alkaline soil
作者:Jing, Feng;Li, Hongbo;Zhou, Dongmei;Gao, Yan;Fan, Guangping;Zhang, Qingya;Gao, Xuezhen
关键词:field experiment; foliar Se application; Se accumulation; soil Cd heterogeneity; toxic metal; wheat Cd
-
Ball-Milling-Modified Biochar with Additives Enhances Soil Cd Passivation, Increases Plant Growth and Restrains Cd Uptake by Chinese Cabbage
作者:Lu, Xin;Sun, Jiawan;Pan, Guojun;Qi, Weicong;Zhang, Zhenhua;Gao, Yan;Lu, Xin;Gao, Yan;Zhang, Zhenhua;Zhang, Zhenhua;Xing, Jincheng
关键词:heavy metals; soil pollution; modification; adsorption; safe production
-
Mn-doped cerium dioxide nanozyme mediates ROS homeostasis and hormone metabolic network to promote wheat germination under low-temperature conditions
作者:Wu, Yixin;Xu, Shen;Sun, Mengqing;Liu, Lizhu;Shi, Gaoling;Gao, Yan;Wu, Yixin;Xu, Shen;Sun, Mengqing;Liu, Lizhu;Shi, Gaoling;Gao, Yan;Wei, Hui;Muhammad, Faheem;Muhammad, Faheem
关键词:Wheat; Nanozyme; Seed priming; Cold tolerance; Hormone metabolic
-
Microbial biomass stoichiometry and proportion of Fe organic complexes separately shape the heterogeneity of mixotrophic denitrification and net N2O sinks in iron-carbon amended ecological ditch
作者:Jiang, Bi-Ni;Zhang, Ying-Ying;Wang, Yan;Liu, Hai-qin;Zhang, Zhi-Yong;Yang, Yi-Jing;Jiang, Bi-Ni;Yang, Yi-Jing;Song, Hai-Liang
关键词:Vegetated drainage ditch; Mixotrophic denitrification; Fe oxides; DOM fraction; Iron-carbon micro-electrolysis; Net N2O sink
-
The role of symbiotic nitrogen-fixing bacteria, Rhizobium and Sinorhizobium, as "bridges" in the rhizosphere of legumes after fomesafen application
作者:Chen, Wei;Li, Yuntao;Shi, Gaoling;Fan, Guangping;Tong, Fei;Liu, Lizhu;Li, Jiangye;Gao, Yan;Chen, Wei;Li, Yuntao;Shi, Gaoling;Fan, Guangping;Tong, Fei;Liu, Lizhu;Li, Jiangye;Gao, Yan;Chen, Wei;Li, Yuntao;Fan, Guangping;Tong, Fei;Gao, Yan;Shi, Gaoling;Gao, Yan
关键词:Legumes; Nitrogen-fixing microbes; Rhizospheric network; Symbiotic nitrogen-fixing bacteria; Root characteristics