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Antibiotic resistome mostly relates to bacterial taxonomy along a suburban transmission chain

《环境科学与工程前沿（英文）》 2022年 第16卷 第3期 doi: 10.1007/s11783-021-1466-7

摘要：

• The α-diversities of resistome were lower in manure and compost than in soils.

关键词： Antibiotic resistance genes     Resistome     Bacterial taxonomy     Transmission chain    

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Characterization of bacterial communities during persistent fog and haze events in the Qingdao coastal

《环境科学与工程前沿（英文）》 2021年 第15卷 第3期 doi: 10.1007/s11783-020-1334-x

摘要：

• Light haze had little effect on bacterial communities.

关键词： Bacterial community     Persistent fog and haze     Particle size    

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TIE算法：一种用于处理演化数据的聚类分层分类法生成技术上层算法 None

Rabia IRFAN, Sharifullah KHAN, Kashif RAJPOOT, Ali Mustafa QAMAR

《信息与电子工程前沿（英文）》 2018年 第19卷 第6期   页码 763-782 doi: 10.1631/FITEE.1700517

摘要： 分类法可实现对大量数据的有效组织和访问。分类法是表示数据概念的一种方法，其需要通过不断演进来反映数据变化。现有分类法自动生成技术无法处理数据演化，因此，所生成的分类法不能真实反映数据。为反映数据演变，可从头对分类法进行再生，或根据数据变化随时对分类法进行增量演进。其中，前者的时间和资源成本较高。提出一种新颖的分类增量进化（TIE）算法，用于处理随时间演变的数据。TIE是一种现有聚类分层分类法生成技术的上层算法，它允许现有分类法增量地演进。在计算机领域的研究论文中对该算法进行了评估。结果表明，与从头再生分类法相比，随数据演化的分类法生成算法耗时非常短，且在单位时间下性能更佳。

关键词： 分类法；聚类算法；信息科学；知识管理；机器学习    

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Materials and surface engineering to control bacterial adhesion and biofilm formation: A review of recent

Huan GU, Dacheng REN

《化学科学与工程前沿（英文）》 2014年 第8卷 第1期   页码 20-33 doi: 10.1007/s11705-014-1412-3

摘要： Bacterial adhesion to surfaces and subsequent biofilm formation are a leading cause of chronic infections and biofouling. These processes are highly sensitive to environmental factors and present a challenge to research using traditional approaches with uncontrolled surfaces. Recent advances in materials research and surface engineering have brought exciting opportunities to pattern bacterial cell clusters and to obtain synthetic biofilms with well-controlled cell density and morphology of cell clusters. In this article, we will review the recent achievements in this field and comment on the future directions.

关键词： surface engineering     materials     bacterial adhesion     biofilm     control     review    

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Effect of nitrobenzene on the performance and bacterial community in an expanded granular sludge bed

Jun Li, Wentao Li, Gan Luo, Yan Li, Aimin Li

《环境科学与工程前沿（英文）》 2019年 第13卷 第1期 doi: 10.1007/s11783-019-1090-y

摘要：

Less than 50 mg/L nitrobenzene brought little effect on anaerobic sulfate reduction.

Kinetics of sulfate reduction under different nitrobenzene contents was studied.

Increased nitrobenzene contents greatly changed the bacterial community structure.

Genus Desulfovibrio played the key role in anaerobic sulfate reduction process.

关键词： Nitrobenzene (NB)     Sulfate-reducing bacteria (SRB)     Bacterial community     Sulfate reduction     High-throughput sequencing    

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Effects of heavy rainfall on the composition of airborne bacterial communities

Gwang Il Jang, Chung Yeon Hwang, Byung Cheol Cho

《环境科学与工程前沿（英文）》 2018年 第12卷 第2期 doi: 10.1007/s11783-018-1008-0

摘要： Wet deposition scavenges particles and particle-associated bacteria from the air column, but the impact of raindrops on various surfaces on Earth causes emission of surface-associated bacteria into the air column. Thus, after rainfall, these two mechanisms are expected to cause changes in airborne bacterial community composition (BCC). In this study, aerosol samples were collected at a suburban site in Seoul, Korea before and after three heavy rainfall events in April, May, and July 2011. BCC was investigated by pyrosequencing the 16S rRNA gene in aerosol samples. Interestingly, the relative abundance of non-spore forming operational taxonomic units (OTUs) was always higher in post-rain aerosol samples. In particular, the absolute and relative abundances of airborne always increased after rainfall, whereas those of airborne , including and , consistently decreased. Marine bacterial sequences, which were temporally important in aerosol samples, also decreased after rainfall events. Further, increases in pathogen-like sequences were often observed in post-rain air samples. Rainfall events seemed to affect airborne BCCs by the combined action of the two mechanisms, with potentially adverse effects on human and plant health.

关键词： Aerosol     Bacteria     Community composition     Pyrosequencing     Rain    

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Diverse bacterial populations of PM in urban and suburb Shanghai, China

《环境科学与工程前沿（英文）》 2021年 第15卷 第3期 doi: 10.1007/s11783-020-1329-7

摘要：

• Urban aerosols harbour diverse bacterial communities in Shanghai.

关键词： PM2.5     Bacteria     16S rRNA     SEM analysis     Shanghai City    

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Response of bacterial communities to short-term pyrene exposure in red soil

Jingjing PENG, Hong LI, Jianqiang SU, Qiufang ZHANG, Junpeng RUI, Chao CAI

《环境科学与工程前沿（英文）》 2013年 第7卷 第4期   页码 559-567 doi: 10.1007/s11783-013-0501-8

摘要： Pyrene, a representative polycyclic aromatic hydrocarbon (PAH) compound produced mainly from incomplete combustion of fossil fuels, is hazardous to ecosystem health. However, long-term exposure studies did not detect any significant effects of pyrene on soil microorganism. In this study, short-term microcosm experiments were conducted to identify the immediate effect of pyrene on soil bacterial communities. A freshly-collected pristine red soil was spiked with pyrene at 0, 10, 100, 200, and 500 mg·kg and incubated for one day and seven days. The bacterial communities in the incubated soils were analyzed using 16S rRNA sequencing and terminal restriction fragment length polymorphism (T-RFLP) methods. The results revealed high bacterial diversity in both unspiked and pyrene-spiked soils. Only at the highest pyrene-spiking rate of 500 mg·kg , two minor bacteria groups of the identified 14 most abundant bacteria groups were completely suppressed. Short-term exposure to pyrene resulted in dominance of Proteobacteria in soil, followed by Acidobacteria, Firmutes, and Bacteroidetes. Our findings showed that bacterial community structure did respond to the presence of pyrene but recovered rapidly from the perturbation. The intensity of impact and the rate of recovery showed some pyrene dosage-dependent trends. Our results revealed that different levels of pyrene may affect the bacterial community structure by suppressing or selecting certain groups of bacteria. It was also found that the bacterial community was most susceptible to pyrene within one day of the chemical addition.

关键词： pyrene     bacterial communities     terminal restriction fragment length polymorphism     short-term exposure     rank-abundance plots    

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Spatial and seasonal variations in bacterial communities of the Yellow Sea by T-RFLP analysis

Hongyuan WANG, Xiaolu JIANG, Ya HE, Huashi GUAN

《环境科学与工程前沿（英文）》 2009年 第3卷 第2期   页码 194-199 doi: 10.1007/s11783-009-0018-3

摘要： Four typical coastal sites (rocky shore, sandy shore, mud flat shore, and artificial harbor) at the Yellow Sea were chosen to investigate the spatial and seasonal variations in bacterial communities. This was accomplished by using terminal restriction fragment length polymorphism (T-RFLP) analysis of PCR amplified 16S rDNA fragments. Two kinds of tetrameric restriction enzymes, I and I, were used in the experiment to depict the bacterial community diversity in different marine environments. It was found that the community compositions digested by the two enzymes separately were different. However, the results of bacterial community diversity derived from them were similar. The MDA analysis results of T-RFLP profiles coming from I and I both exhibited a significant seasonal community shift for bacteria and a relatively low spatial variation among the four locations. With I as the sample, the pair wise -tests also revealed that variations were minor between each pair of marine environments, with ranging from 0.198 to 0.349. However, the bacterial community structure in the mud flat site depicted a larger difference than each of the other three sites ( ranging from 0.282 to 0.349).

关键词： terminal restriction fragment length polymorphism (T-RFLP)     bacterial community structure     marine microbial diversity     HhaI     MspI    

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Aerobic granulation of pure bacterial strain

ADAV Sunil S., LEE Duu-Jong

《环境科学与工程前沿（英文）》 2008年 第2卷 第4期   页码 461-467 doi: 10.1007/s11783-008-0066-0

摘要： The objective of this study is to cultivate aerobic granules by pure bacterial strain, , in a sequencing batch reactor. Stable granules sized 2.0–2.2 mm were formed in the reactor after a five-week cultivation. These granules exhibited excellent settling attributes, and degraded phenol at rates of 1.49 and 1.19 g phenol/(g VSS·d) at 250 and 1500 mg/L of phenol concentration, respectively. Confocal laser scanning microscopic test results show that was distributed over the initial small aggregates, and the outer edge of the granule was away from the core regime in the following stage.

关键词： following     excellent settling     phenol/     sequencing     microscopic    

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Molecular analysis of bacterial community in the tap water with different water ages of a drinking water

Feng Wang, Weiying Li, Yue Li, Junpeng Zhang, Jiping Chen, Wei Zhang, Xuan Wu

《环境科学与工程前沿（英文）》 2018年 第12卷 第3期 doi: 10.1007/s11783-018-1020-4

摘要： Bacterial community in the drinking water distribution system (DWDS) was regulated by multiple environmental factors, many of which varied as a function of water age. In this study, four water samples with different water ages, including finished water (FW, 0 d) and tap water (TW) [TW1 (1 d), TW2(2 d) and TW3(3 d)], were collected along with the mains of a practical DWDS, and the bacterial community was investigated by high-throughput sequencing technique. Results indicated that the residual chlorine declined with the increase of water age, accompanied by the increase of dissolved organic matter, total bacteria counts and bacterial diversity (Shannon). For bacterial community composition, although Proteobacteria phylum (84.12%-97.6%) and Alphaproteobacteria class (67.42%-93.09%) kept dominate, an evident regular was observed at the order level. In detail, the relative abundance of most of other residual orders increased with different degrees from the start to the end of the DWDS, while a downward trend was uniquely observed in terms of Rhizobiales, who was inferred to be chlorine-resistant and be helpful for inhibiting pipes corrosion. Moreover, some OTUs were found to be closely related with species possessing pathogenicity and chlorine-resistant ability, so it was recommended that the use of agents other than chlorine or agents that can act synergically with chlorine should be developed for drinking water disinfection. This paper revealed bacterial community variations along the mains of the DWDS and the result was helpful for understanding bacterial ecology in the DWDS.

关键词： Bacterial community     Water age     High-throughput sequencing technique     Drinking water distribution system    

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novel power system reconfiguration for a distribution system with minimum load balancing index using bacterial

K. Sathish KUMAR, T. JAYABARATHI

《能源前沿（英文）》 2012年 第6卷 第3期   页码 260-265 doi: 10.1007/s11708-012-0196-8

摘要： In this paper, the objective of minimum load balancing index (LBI) for the 16-bus distribution system is achieved using bacterial foraging optimization algorithm (BFOA). The feeder reconfiguration problem is formulated as a non-linear optimization problem and the optimal solution is obtained using BFOA. With the proposed reconfiguration method, the radial structure of the distribution system is retained and the burden on the optimization technique is reduced. Test results are presented for the 16-bus sample network, the proposed reconfiguration method has effectively decreased the LBI, and the BFOA technique is efficient in searching for the optimal solution.

关键词： bacterial foraging optimization algorithm (BFOA)     distribution system     network reconfiguration     load balancing index (LBI)     radial network    

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Identification of molecular markers linked to rice bacterial blight resistance genes from

Jing WANG,Chen CHENG,Yanru ZHOU,Yong YANG,Qiong MEI,Junmin LI,Ye CHENG,Chengqi YAN,Jianping CHEN

《农业科学与工程前沿（英文）》 2015年 第2卷 第3期   页码 260-265 doi: 10.15302/J-FASE-2015070

摘要： Y73 is a progeny of asymmetric somatic hybridization between cv. Dalixiang and the wild rice species . Inoculation with a range of strains of pv. showed that Y73 had inherited a high level of resistance to rice bacterial blight (BB) from its wild parent. An F population of 7125 individuals was constructed from the cross between Y73 and a BB-susceptible cultivar IR24. After testing 615 SSR and STS markers covering the 12 rice chromosomes, 186 markers were selected that showed polymorphism between Y73 and IR24. Molecular markers linked to the BB resistance genes in Y73 were scanned using the F population and the polymorphic markers. The SSR marker RM128 on chromosome 1, the STS marker R03D159 on chromosome 3 and the STS marker R05D104 on chromosome 5 were found to be linked to the rice BB resistance genes in Y73.

关键词： Oryza meyeriana     bacterial blight resistance gene     genetic population     linkage molecular marker    

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Different response of bacterial community to the changes of nutrients and pollutants in sediments from

Fang Zhang, Hao Zhang, Ying Yuan, Dun Liu, Chenyu Zhu, Di Zheng, Guanghe Li, Yuquan Wei, Dan Sun

《环境科学与工程前沿（英文）》 2020年 第14卷 第2期 doi: 10.1007/s11783-019-1207-3

摘要： • Bacterial community varied spatially in sediments from the urban river network. • Key environmental factors shaping bacterial community were detected by RDA. • Bacterial co-occurrence networks changed at different levels of nutrient and metal. • Potential indicator species were selected to predict pollution risk in sediment. Microbial communities in sediment are an important indicator linking to environmental pollution in urban river systems. However, how the diversity and structure of bacterial communities in sediments from an urban river network respond to different environmental factors has not been well studied. The goal of this study was to understand the patterns of bacterial communities in sediments from a highly dense urbanized river network in the lower Yangtze River Delta by Illumina MiSeq sequencing. The correlations between bacterial communities, the environmental gradient and geographical distance were analyzed by redundancy analysis (RDA) and network methods. The diversity and richness of bacterial community in sediments increased from upstream to downstream consistently with the accumulation of nutrient in the urban river network. Bacterial community composition and structure showed obvious spatial changes, leading to two distinct groups, which were significantly related to the characteristics of nutrient and heavy metal in sediments. Humic substance, available nitrogen, available phosphorus, Zn, Cu, Hg and As were selected as the key environmental factors shaping the bacterial community in sediments based on RDA. The co-occurrence patterns of bacterial networks showed that positive interaction between bacterial communities increased but the connectivity among bacterial genera and stability of sediment ecosystem reduced under a higher content of nutrient and heavy metal in average. The sensitive and ubiquitous taxa with an overproportional response to key environmental factors were detected as indicator species, which provided a novel method for the prediction of the pollution risk of sediment in an urban river network.

关键词： Sediment     Urban river network     Bacterial community     Network analysis     Indicator species    

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Transport of bacterial cell (

Wei Fan, Qi Li, Mingxin Huo, Xiaoyu Wang, Shanshan Lin

《环境科学与工程前沿（英文）》 2020年 第14卷 第4期 doi: 10.1007/s11783-020-1242-0

摘要： Abstract • The recharge pond dwelling process induced changes in cell properties. • Cell properties and solution chemistry exerted confounding effect on cell transport. • E. coli cells within different recharge water displayed different spreading risks. Commonly used recharge water resources for artificial groundwater recharge (AGR) such as secondary effluent (SE), river water and rainfall, are all oligotrophic, with low ionic strengths and different cationic compositions. The dwelling process in recharge pond imposed physiologic stress on Escherichia coli (E. coli) cells, in all three types of investigated recharge water resources and the cultivation of E. coli under varying recharge water conditions, induced changes in cell properties. During adaptation to the recharge water environment, the zeta potential of cells became more negative, the hydrodynamic diameters, extracellular polymeric substances content and surface hydrophobicity decreased, while the cellular outer membrane protein profiles became more diverse. The mobility of cells altered in accordance with changes in these cell properties. The E. coli cells in rainfall recharge water displayed the highest mobility (least retention), followed by cells in river water and finally SE cells, which had the lowest mobility. Simulated column experiments and quantitative modeling confirmed that the cellular properties, driven by the physiologic state of cells in different recharge water matrices and the solution chemistry, exerted synergistic effects on cell transport behavior. The findings of this study contribute to an improved understanding of E. coli transport in actual AGR scenarios and prediction of spreading risk in different recharge water sources.

关键词： Artificial groundwater recharge     E. coli     Transport     Simulated column experiments     Modeling    

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标题 作者 时间 类型 操作

Antibiotic resistome mostly relates to bacterial taxonomy along a suburban transmission chain

期刊论文

Characterization of bacterial communities during persistent fog and haze events in the Qingdao coastal

期刊论文

TIE算法：一种用于处理演化数据的聚类分层分类法生成技术上层算法

Rabia IRFAN, Sharifullah KHAN, Kashif RAJPOOT, Ali Mustafa QAMAR

期刊论文

Materials and surface engineering to control bacterial adhesion and biofilm formation: A review of recent

Huan GU, Dacheng REN

期刊论文

Effect of nitrobenzene on the performance and bacterial community in an expanded granular sludge bed

Jun Li, Wentao Li, Gan Luo, Yan Li, Aimin Li

期刊论文

Effects of heavy rainfall on the composition of airborne bacterial communities

Gwang Il Jang, Chung Yeon Hwang, Byung Cheol Cho

期刊论文

Diverse bacterial populations of PM in urban and suburb Shanghai, China

期刊论文

Response of bacterial communities to short-term pyrene exposure in red soil

Jingjing PENG, Hong LI, Jianqiang SU, Qiufang ZHANG, Junpeng RUI, Chao CAI

期刊论文

Spatial and seasonal variations in bacterial communities of the Yellow Sea by T-RFLP analysis

Hongyuan WANG, Xiaolu JIANG, Ya HE, Huashi GUAN

期刊论文

Aerobic granulation of pure bacterial strain

ADAV Sunil S., LEE Duu-Jong

期刊论文

Molecular analysis of bacterial community in the tap water with different water ages of a drinking water

Feng Wang, Weiying Li, Yue Li, Junpeng Zhang, Jiping Chen, Wei Zhang, Xuan Wu

期刊论文

novel power system reconfiguration for a distribution system with minimum load balancing index using bacterial

K. Sathish KUMAR, T. JAYABARATHI

期刊论文

Identification of molecular markers linked to rice bacterial blight resistance genes from

Jing WANG,Chen CHENG,Yanru ZHOU,Yong YANG,Qiong MEI,Junmin LI,Ye CHENG,Chengqi YAN,Jianping CHEN

期刊论文

Different response of bacterial community to the changes of nutrients and pollutants in sediments from

Fang Zhang, Hao Zhang, Ying Yuan, Dun Liu, Chenyu Zhu, Di Zheng, Guanghe Li, Yuquan Wei, Dan Sun

期刊论文

Transport of bacterial cell (

Wei Fan, Qi Li, Mingxin Huo, Xiaoyu Wang, Shanshan Lin

期刊论文