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1. Different Height Forms of Spartina alterniflora Might Select Their Own Rhizospheric Bacterial Communities in Southern Coast of China

Author:
Lin, Li’an; Liu, Wenwen; Zhang, Manping; Lin, Xiaolan; Zhang, Yihui; Tian, Yun
Source:
Microbial ecology 2019 v.77 no.1 pp. 124-135
ISSN:
0095-3628
Subject:
bacterial communities,   etc   ; Spartina alterniflora; coasts; genes; rhizosphere; rhizosphere bacteria; China;     Show all 7 Subjects
Abstract:
... In the southernmost part of coast of China, two height forms of Spartina alterniflora, tall and short, have invaded Leizhou Peninsula within the last decade. However, the effect of different height forms of Spartina alterniflora on plant–microbe interaction has not been clarified. Here, the community structures of rhizosphere bacteria and the abundance of N- and S-cycling functional genes associat ...
DOI:
10.1007/s00248-018-1208-y

2. Potential regulation accelerates element sulfur metabolism in sulfur autotrophic denitrification

Author:
Hao, Wen; Miao, Bo; Liu, Panpan; Huang, Xia; Liang, Peng
Source:
Journal of cleaner production 2019 v.228 pp. 94-100
ISSN:
0959-6526
Subject:
bacterial communities,   etc   ; biofilm; cathodes; denitrification; metabolism; nitrate reduction; nitrates; nitrites; nitrogen; soot; sulfur; wastewater;     Show all 12 Subjects
Abstract:
... Sulfur autotrophic denitrification is a feasible option for nitrate removal from wastewater. Element sulfur (So) can be utilized as an electron donor to enhance denitrification processes, with So metabolism playing an important role. The general concern with the use of So as an electron donor is the conversion and transfer of So, since So hardly dissolves in water. The conversion of So and the tra ...
DOI:
10.1016/j.jclepro.2019.04.221

3. Roles of bacterial community in the transformation of organic nitrogen toward enhanced bioavailability during composting with different wastes

Author:
Zhu, Longji; Zhao, Yue; Zhang, Wenshuai; Zhou, Haixuan; Chen, Xiaomeng; Li, Yingjun; Wei, Dan; Wei, Zimin
Source:
Bioresource technology 2019 v.285 pp. 121326
ISSN:
0960-8524
Subject:
bacterial communities,   etc   ; bacteria; bioavailability; composting; garden residues; gardening; molecular weight; organic nitrogen; pH; poultry manure;     Show all 10 Subjects
Abstract:
... This study aimed to explore the roles of bacterial community in the transformation of bioavailable organic-N (BON) during different wastes composting. BON fractions with different forms and molecular weights were identified in this study. Results indicated that core bacterial communities improved the availability of BON by degrading high molecular weights BON into low molecular weights BON during ...
DOI:
10.1016/j.biortech.2019.121326

4. Seasonal dynamics of bacterial communities associated with antibiotic removal and sludge stabilization in three different sludge treatment wetlands

Author:
Wang, Shiquan; Cui, Yubo; Li, Aimin; Wang, Dong; Zhang, Wanjun; Chen, Zhaobo
Source:
Journal of environmental management 2019 v.240 pp. 231-237
ISSN:
0301-4797
Subject:
bacterial communities,   etc   ; Bacteroidetes; Dechloromonas; Firmicutes; Pseudomonas; Thiobacillus; aeration; azithromycin; ciprofloxacin; genes; oxytetracycline; sludge; summer; wetlands;     Show all 14 Subjects
Abstract:
... In this study, antibiotics removal, sludge stabilization and the change in the bacterial community in sludge treatment wetlands (STWs) were investigated in different seasons. Pilot-scale STWs were characterized for sludge stabilization and the fate of antibiotics in surplus sludge applied during different seasons in three different configurations. The three configurations were unit S1 with ventila ...
DOI:
10.1016/j.jenvman.2019.03.092

5. The effect of tetracycline on the structure of the bacterial community in a wastewater treatment system and its effects on nitrogen removal

Author:
Islam, G.M.; Gilbride, K.A.
Source:
Journal of hazardous materials 2019 v.371 pp. 130-137
ISSN:
0304-3894
Subject:
bacterial communities,   etc   ; ammonia; carbon; municipal wastewater; nitrates; nitrites; nitrogen; tetracycline; total Kjeldahl nitrogen; wastewater treatment;     Show all 10 Subjects
Abstract:
... This study examined the impact of tetracycline at two environmentally relevant concentrations (1 μg/L and 10 μg/L) and one synthetically high concentration (500 μg/L) on the structure and function of the microbial community from the secondary treatment process of a municipal wastewater treatment plant (WWTP). Specifically, this study examined whether the introduction of tetracycline into bench sca ...
DOI:
10.1016/j.jhazmat.2019.02.032

6. Bacterial community enhances flocculation efficiency of Ettlia sp. by altering extracellular polymeric substances profile

Author:
Vu, Chau Hai Thai; Chun, Seong-Jun; Seo, Seong-Hyun; Cui, Yingshun; Ahn, Chi-Yong; Oh, Hee-Mock
Source:
Bioresource technology 2019 v.281 pp. 56-65
ISSN:
0960-8524
Subject:
bacterial communities,   etc   ; Ettlia; algae culture; axenic culture; bacteria; biomass; flocculation; microscopy; polymers; quantitative analysis;     Show all 10 Subjects
Abstract:
... This study examined the effects of a bacterial community and extracellular polymeric substances (EPS) on Ettlia sp. flocculation. The growth rate, flocculation efficiency (FE), bacterial community, and EPS profile of axenic and xenic Ettlia cultures were monitored during 46 days of cultivation. For the xenic culture, with a great abundance of growth-promoting and flocculation-inducing bacteria, th ...
DOI:
10.1016/j.biortech.2019.02.062

7. Formation of a dynamic membrane altered the microbial community and metabolic flux in fermentative hydrogen production

Author:
Park, Jong-Hun; Park, Jeong-Hoon; Sim, Young-Bo; Kim, Sang-Hyoun; Park, Hee-Deung
Source:
Bioresource technology 2019 v.282 pp. 63-68
ISSN:
0960-8524
Subject:
bacterial communities,   etc   ; Clostridia; Sporolactobacillaceae; biochemical pathways; heat treatment; hydrogen; hydrogen production; lactic acid; polyesters; sludge;     Show all 10 Subjects
Abstract:
... This study aimed to investigate the relationship among dynamic membrane (DM) formation, metabolic flux, and microbial community population in dark fermentative hydrogen production. A continuously stirred tank reactor was equipped with an external submerged polyester screen mesh and inoculated with heat-treated anaerobic sludge without immobilization. DM was successfully developed on the polyester ...
DOI:
10.1016/j.biortech.2019.02.124

8. Development of microbial community within the cathodic biofilm of single-chamber air-cathode microbial fuel cell

Author:
Xu, Guofang; Zheng, Xiyuan; Lu, Yaobin; Liu, Guangli; Luo, Haiping; Li, Xiao; Zhang, Renduo; Jin, Song
Source:
The Science of the total environment 2019 v.665 pp. 641-648
ISSN:
0048-9697
Subject:
bacterial communities,   etc   ; Methanobrevibacter; Pseudomonas; acetates; aerobes; bacteria; biofilm; community structure; microbial fuel cells;     Show all 9 Subjects
Abstract:
... The aim of this study was to investigate the development of microbial community within the cathodic biofilm of single-chamber air-cathode microbial fuel cell (MFC). To analyze microbial community structures within cathodic biofilm, cathodic biofilm samples were stratified into three layers, i.e., the cathode-side layer (0–40 μm), the middle layer (40–80 μm), and the anolyte-side layer (80–120 μm). ...
DOI:
10.1016/j.scitotenv.2019.02.175

9. A combined heterotrophic and sulfur-based autotrophic process to reduce high concentration perchlorate via anaerobic baffled reactors: Performance advantages of a step-feeding strategy

Author:
Li, Kun; Guo, Jianbo; Li, Haibo; Han, Yi; Chen, Zhi; Song, Yuanyuan; Xing, Yajuan; Zhang, Chunqing
Source:
Bioresource technology 2019 v.279 pp. 297-306
ISSN:
0960-8524
Subject:
bacterial communities,   etc   ; bacteria; bioreactors; community structure; feeding methods; fluorescence; perchlorates; principal component analysis;     Show all 8 Subjects
Abstract:
... The combined anaerobic baffled reactors (ABRs) of heterotrophic and sulfur-based autotrophic processes were first investigated for the removal of high perchlorate concentration under different feeding strategies. The removal efficiency of the step-feeding ABR (SF-ABR) reached 97.56% at 800 mg/L perchlorate, which was significantly superior to the normal-feeding ABR (NF-ABR). In three components of ...
DOI:
10.1016/j.biortech.2019.01.111

10. Can the comparison of above- and below-ground litter decomposition improve our understanding of bacterial and fungal successions?

Author:
Sauvadet, Marie; Fanin, Nicolas; Chauvat, Matthieu; Bertrand, Isabelle
Source:
Soil biology & biochemistry 2019 v.132 pp. 24-27
ISSN:
0038-0717
Subject:
bacterial communities,   etc   ; bacteria; carbon; corn; fungal communities; fungi; leaves; models; roots; sequence analysis; soil; soil microorganisms;     Show all 12 Subjects
Abstract:
... The relationship between litter quality and life strategy of soil microorganisms (copiotrophy vs oligotrophy) is important for understanding soil processes such as decomposition. Yet, whether and how this relationship may vary with the addition of substrates of contrasting quality (i.e., labile vs recalcitrant) has rarely been evaluated for both bacteria and fungi simultaneously. Using a 3-month i ...
DOI:
10.1016/j.soilbio.2019.01.022

11. Quenching by sodium thiosulfate does not influence 16S rRNA gene sequencing profiles of reclaimed water from three sites in the Mid-Atlantic, United States

Author:
Allard, Sarah M.; Solaiman, Sultana; Callahan, Mary Theresa; Bui, Anthony; Craddock, Hillary; Haymaker, Joseph; Foust, Derek; Duncan, Rico; Smyth, Eoghan; Mongodin, Emmanuel F.; Hashem, Fawzy; May, Eric; Micallef, Shirley A.; Sapkota, Amy R.
Source:
Environmental research 2019 v.172 pp. 296-300
ISSN:
0013-9351
Subject:
bacterial communities,   etc   ; die-off; microorganisms; ribosomal RNA; sequence analysis; sodium; thiosulfates; wastewater treatment; United States;     Show all 9 Subjects
Abstract:
... A quenching agent is commonly added to chlorinated, reclaimed water during sample collection to prevent chlorine-mediated die-off of viable microbiota. However, the effect of quenching on downstream 16S rRNA-based bacterial community analyses is unclear. We conducted a side-by-side comparison of 16S rRNA sequencing data from reclaimed water samples quenched with sodium thiosulfate and non-quenched ...
DOI:
10.1016/j.envres.2019.02.022

12. The behavior of antibiotic resistance genes and their associations with bacterial community during poultry manure composting

Author:
Awasthi, Mukesh Kumar; Liu, Tao; Chen, Hongyu; Verma, Shivpal; Duan, Yumin; Awasthi, Sanjeev Kumar; Wang, Quan; Ren, Xiuna; Zhao, Junchao; Zhang, Zengqiang
Source:
Bioresource technology 2019 v.280 pp. 70-78
ISSN:
0960-8524
Subject:
bacterial communities,   etc   ; Firmicutes; Proteobacteria; antibiotic resistance genes; clay; composts; heat; physicochemical properties; poultry manure; risk;     Show all 10 Subjects
Abstract:
... In this paper, the influence of clay amendment on antibiotic resistance genes (ARGs) fate and their relation with bacterial diversity in poultry manure (PM) composting was evaluated. The results confirmed that 4% clay amendment was significantly reduce the relative abundances (RAs) 94% of ARGs, while higher dosage of clay blended treatments (T5 and T6) composts were observed relatively very high p ...
DOI:
10.1016/j.biortech.2019.02.030

13. Microneedle Patch-Mediated Treatment of Bacterial Biofilms

Author:
Xu, Junhua; Danehy, Ryan; Cai, Hongwei; Ao, Zheng; Pu, Meng; Nusawardhana, Alexandra; Rowe-Magnus, Dean; Guo, Feng
Source:
ACS applied materials & interfaces 2019 v.11 no.16 pp. 14640-14646
ISSN:
1944-8252
Subject:
bacterial communities,   etc   ; Vibrio vulnificus; antibiotic resistance; antibiotics; biofilm; chloramphenicol; drugs; enzymes; gelatin; nanoparticles; toxicity;     Show all 11 Subjects
Abstract:
... Current treatments of bacterial biofilms are limited by the poor penetration of antibiotics through their physical barrier as well as significant off-target toxicity of antibiotics and the induction of antibiotic resistance. Here we report a microneedle patch-mediated treatment for the effective elimination of biofilms by penetrating the biofilm and specifically delivering antibiotics to regions o ...
DOI:
10.1021/acsami.9b02578

14. Acclimation Process for Enhancing Polyhydroxyalkanoate Accumulation in Activated-Sludge Biomass

Author:
Morgan-Sagastume, Fernando; Valentino, Francesco; Hjort, Markus; Zanaroli, Giulio; Majone, Mauro; Werker, Alan
Source:
Waste and biomass valorization 2019 v.10 no.4 pp. 1065-1082
ISSN:
1877-2641
Subject:
bacterial communities,   etc   ; acclimation; acetates; activated sludge; biomass; cell respiration; community structure; municipal wastewater; physiological state; polyhydroxyalkanoates;     Show all 10 Subjects
Abstract:
... A strategy was evaluated for conditioning activated sludge biomass to a new substrate whereby the polyhydroxyalkanoate (PHA) accumulation capacity of the biomass was enhanced based on a series of aerobic feast–famine acclimation cycles applied prior to PHA accumulation. Different biomass types enriched during the treatment of municipal wastewater at laboratory, pilot, and full scales were exposed ...
DOI:
10.1007/s12649-017-0122-8

15. Effects of organic loading rates on microbial communities and biogas production from water hyacinth: a case of mono‐ and co‐digestion

Author:
Nkuna, Rosina; Roopnarain, Ashira; Adeleke, Rasheed
Source:
Journal of chemical technology and biotechnology 2019 v.94 no.4 pp. 1294-1304
ISSN:
0268-2575
Subject:
bacterial communities,   etc   ; Archaea; Eichhornia crassipes; anaerobic digestion; community structure; gas production (biological); methane; methane production;     Show all 8 Subjects
Abstract:
... BACKGROUND: Anaerobic digestion is a microbial driven process, which results in biogas production. Although important, the relative abundance of microbial communities can be affected by disturbances such as feeding rates. In this study, the effects of irregular organic loading rates on anaerobic digestion of water hyacinth (mono‐ and co‐digestion) as well as on bacterial and archaeal communities w ...
DOI:
10.1002/jctb.5886

16. Glutamate as sole carbon source for enhanced biological phosphorus removal

Author:
Rey-Martínez, Natalia; Badia-Fabregat, Marina; Guisasola, Albert; Baeza, Juan Antonio
Source:
The Science of the total environment 2019 v.657 pp. 1398-1408
ISSN:
0048-9697
Subject:
bacterial communities,   etc   ; Comamonadaceae; Thiothrix; carbon; carbon sequestration; denitrification; glycogen; nitrogen; phosphorus; sludge; volatile fatty acids; wastewater;     Show all 12 Subjects
Abstract:
... Enhanced Biological Phosphorus Removal (EBPR) is based on the enrichment of sludge in polyphosphate accumulating organisms (PAO). Candidatus Accumulibacter is the bacterial community member most commonly identified as PAO in EBPR systems when volatile fatty acids (VFA) are the carbon source. However, it is necessary to understand the role of non-Accumulibacter PAO in the case of wastewater with lo ...
DOI:
10.1016/j.scitotenv.2018.12.064

17. The utilization of aromatic hydrocarbon by nitrate- and sulfate-reducing bacteria in single and multiple nitrate injection for souring control

Author:
Kamarisima,; Miyanaga, Kazuhiko; Tanji, Yasunori
Source:
Biochemical engineering journal 2019 v.143 pp. 75-80
ISSN:
1369-703X
Subject:
bacterial communities,   etc   ; Arcobacter; Desulfotignum; Thalassospira; denitrifying bacteria; ethylbenzene; nitrates; sulfate-reducing bacteria; toluene; xylene;     Show all 10 Subjects
Abstract:
... The application of nitrate-mediated souring control has been proposed as a promising tool. However, the efficiency of this method remains controversial due to several unresolved issues, such as the determination of effective nitrate concentration, the optimal injection period, etc. In this study, we investigated the depletion of specific hydrocarbons as the electron donor for sulfate-reducing bact ...
DOI:
10.1016/j.bej.2018.12.006

18. Effects of microphytobenthos Cylindrotheca closterium on the fate of di-n-butyl phthalate in an aquatic microcosm

Author:
Zhang, Fan; Ding, Zheng; Gong, Haofei; Chi, Jie
Source:
Marine pollution bulletin 2019 v.140 pp. 101-106
ISSN:
0025-326X
Subject:
bacterial communities,   etc   ; Cylindrotheca closterium; bacteria; biodegradation; dibutyl phthalate; models; ribosomal DNA; sediments; sequence analysis; water pollution;     Show all 10 Subjects
Abstract:
... Effects of Cylindrotheca closterium, a marine benthic diatom, on the fate of di-n-butyl phthalate (DBP) in a water-sediment system were investigated. Model calculation results showed that DBP residue was 38.5% lower in the system with C. closterium than in the system without C. closterium. The net flux from water to sediment increased by 7.3 times in the presence of C. closterium. As a result, the ...
DOI:
10.1016/j.marpolbul.2019.01.033

19. Ultrasound combined with dilute acid pretreatment of grass for improvement of fermentative hydrogen production

Author:
Yang, Guang; Wang, Jianlong
Source:
Bioresource technology 2019 v.275 pp. 10-18
ISSN:
0960-8524
Subject:
bacterial communities,   etc   ; Clostridium; Enterococcus; atomic force microscopy; biomass; crystal structure; fermentation; grasses; hydrogen production; surface area;     Show all 10 Subjects
Abstract:
... In this study, the dilute acid pretreatment combined with ultrasound was applied to improve fermentative hydrogen production from grass. The experimental results indicated that SCOD and soluble carbohydrate contents of grass was improved by 98.6% and 236.9% after the combined treatment, respectively. Surface morphology (SEM and AFM) and crystallinity analysis revealed that the combined pretreatmen ...
DOI:
10.1016/j.biortech.2018.12.013

20. Analysis of uranium removal capacity of anaerobic granular sludge bacterial communities under different initial pH conditions

Author:
Zeng, Taotao; Li, Licheng; Mo, Guanhai; Wang, Guohua; Liu, Haiyan; Xie, Shuibo
Source:
Environmental science and pollution research international 2019 v.26 no.6 pp. 5613-5622
ISSN:
0944-1344
Subject:
bacterial communities,   etc   ; Acinetobacter; Chloroflexi; Chryseobacterium; Pseudomonas; biomass; inoculum; pH; sludge; uranium;     Show all 10 Subjects
Abstract:
... The bacterial community of an anaerobic granular sludge associated with uranium depletion was investigated following its exposure to uranium under different initial pH conditions (pH 4.5, 5.5, and 6.5). The highest uranium removal efficiency (98.1%) was obtained for the sample with an initial pH of 6.5, which also supported the highest bacterial community richness and diversity. Venn diagrams visu ...
DOI:
10.1007/s11356-018-4017-4