1
|
Chang X, Fu F, Sun Y, Zhao L, Li X, Li Y. Coupling multifactor dominated the biochemical response and the alterations of intestinal microflora of earthworm Pheretima guillelmi due to typical herbicides. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:94126-94137. [PMID: 37526832 DOI: 10.1007/s11356-023-29032-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 07/25/2023] [Indexed: 08/02/2023]
Abstract
The excessive application of herbicides on farmlands can substantially reduce labor costs and increase crop yields, but can also have undesirable effects on terrestrial ecosystems. To evaluate the ecological toxicity of herbicides, metolachlor and fomesafen, two typical herbicides that are extensively used worldwide were chosen as target pollutants, and the endogeic earthworm Pheretima guillelmi, which is widely distributed in China, was selected as the test organism. A laboratory-scale microcosmic experiment was set, and energy resources, enzymes, and the composition and connections of intestinal microorganisms in earthworms were determined. Both herbicides depleted the energy resources of the earthworms, especially glycogen contents; increased the levels of antioxidant enzymes; and inhibited acetylcholinesterase. Moreover, the richness and diversity of the intestinal bacterial community of the earthworms were suppressed. Additionally, the bacterial composition at the genus level changed greatly and the connections between dominant bacteria increased dramatically. Most interactions among the bacterial genera belonging to the same and different phyla showed mutualism and competition, respectively. Importantly, metolachlor with higher toxicity had a transitory effect on these indicators in earthworms, whereas fomesafen, with lower toxicity but stronger bioaccumulation potential, exerted a sustaining impact on earthworms. Collectively, these results indicate that the toxic effects of herbicides on terrestrial organisms should be comprehensively considered in combination with biological toxicity, persistence, bioaccumulation potential, and other factors.
Collapse
Affiliation(s)
- Xingping Chang
- Ministry of Agriculture and Rural Affairs, Key Laboratory of Original Agro-Environmental Pollution Prevention and Control, Agro-Environmental Protection Institute, MARA/Tianjin Key Laboratory of Agro-Environment and Agro-Product Safety, Tianjin, 300191, China
| | - Furong Fu
- Ministry of Agriculture and Rural Affairs, Key Laboratory of Original Agro-Environmental Pollution Prevention and Control, Agro-Environmental Protection Institute, MARA/Tianjin Key Laboratory of Agro-Environment and Agro-Product Safety, Tianjin, 300191, China
| | - Yang Sun
- Ministry of Agriculture and Rural Affairs, Key Laboratory of Original Agro-Environmental Pollution Prevention and Control, Agro-Environmental Protection Institute, MARA/Tianjin Key Laboratory of Agro-Environment and Agro-Product Safety, Tianjin, 300191, China.
| | - Lixia Zhao
- Ministry of Agriculture and Rural Affairs, Key Laboratory of Original Agro-Environmental Pollution Prevention and Control, Agro-Environmental Protection Institute, MARA/Tianjin Key Laboratory of Agro-Environment and Agro-Product Safety, Tianjin, 300191, China
| | - Xiaojing Li
- Ministry of Agriculture and Rural Affairs, Key Laboratory of Original Agro-Environmental Pollution Prevention and Control, Agro-Environmental Protection Institute, MARA/Tianjin Key Laboratory of Agro-Environment and Agro-Product Safety, Tianjin, 300191, China
| | - Yongtao Li
- College of Resources and Environment, South China Agricultural University, Guangzhou, 510642, China
| |
Collapse
|
2
|
Tang K, Liang Y, Yuan B, Meng J, Feng F. Spatial distribution and core community of diazotrophs in Biological soil crusts and subsoils in temperate semi-arid and arid deserts of China. Front Microbiol 2023; 14:1074855. [PMID: 37608942 PMCID: PMC10440438 DOI: 10.3389/fmicb.2023.1074855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 07/25/2023] [Indexed: 08/24/2023] Open
Abstract
Introduction Biological soil crusts (BSCs) are distributed in arid and semiarid regions, and they function as important microhabitats for nitrogen fixation. The diazotroph community is critical for nitrogen fixation in BSCs and their subsoils. However, little is known about the key groups in different types of BSCs and subsoils in temperate semi-arid or arid deserts. Methods Here, we sampled three types of BSCs and their subsoils from the Inner Mongolian plateau, investigated the distribution characteristics of the diazotroph community by high-throughput sequencing, predicted keystone species using the molecular ecological network analyses pipeline (MENAP), and verified their close relationship with the available nitrogen (AN) content. Results The results showed that available nitrogen content in BSCs was higher than that in subsoils in three different types of BSCs, and there were differences among seasons and according to the mean annual precipitation. The abundance of diazotrophs was higher in Cyano-BSCs, while diversity had no significant difference among BSCs and subsoils. Cyanobacteria and Proteobacteria, Nostocaceae and Scytonemataceae, Skermanella, Scytonema, Azohydromonas, Nostoc and Trichormus were the dominant phyla, families, and genera, respectively. The dominant groups belong to Skermanella, Scytonema, and Nostoc formed the core diazotroph community in the three types of BSCs and subsoils, and each had a close relationship with AN. Discussion These results indicate that diazotrophs in BSCs and subsoils had high diversity, and the core diazotroph communities have a close relationship with nitrogen fixation and that they may be the main contributor to nitrogen fixing in BSCs and subsoils in temperate deserts.
Collapse
Affiliation(s)
- Kai Tang
- Laboratory for Environmental Microbiology and Biotechnology in Arid and Cold Regions, College of Life Sciences, Inner Mongolia Agricultural University, Hohhot, China
| | - Yungang Liang
- Laboratory for Environmental Microbiology and Biotechnology in Arid and Cold Regions, College of Life Sciences, Inner Mongolia Agricultural University, Hohhot, China
| | - Bo Yuan
- Laboratory for Environmental Microbiology and Biotechnology in Arid and Cold Regions, College of Life Sciences, Inner Mongolia Agricultural University, Hohhot, China
- College of Life Science, Inner Mongolia Normal University, Hohhot, China
| | - Jianyu Meng
- Laboratory for Environmental Microbiology and Biotechnology in Arid and Cold Regions, College of Life Sciences, Inner Mongolia Agricultural University, Hohhot, China
| | - Fuying Feng
- Laboratory for Environmental Microbiology and Biotechnology in Arid and Cold Regions, College of Life Sciences, Inner Mongolia Agricultural University, Hohhot, China
| |
Collapse
|
3
|
Liu X, Yang W, Li W, Ali A, Chen J, Sun M, Gao Z, Yang Z. Moderate organic fertilizer substitution for partial chemical fertilizer improved soil microbial carbon source utilization and bacterial community composition in rain-fed wheat fields: current year. Front Microbiol 2023; 14:1190052. [PMID: 37396386 PMCID: PMC10307974 DOI: 10.3389/fmicb.2023.1190052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 05/18/2023] [Indexed: 07/04/2023] Open
Abstract
Organic fertilizers can partially replace chemical fertilizers to improve agricultural production and reduce negative environmental impacts. To study the effect of organic fertilizer on soil microbial carbon source utilization and bacterial community composition in the field of rain-fed wheat, we conducted a field experiment from 2016 to 2017 in a completely randomized block design with four treatments: the control with 100% NPK compound fertilizer (N: P2O5: K2O = 20:10:10) of 750 kg/ha (CK), a combination of 60% NPK compound fertilizer with organic fertilizer of 150 kg/ha (FO1), 300 kg/ha (FO2), and 450 kg/ha (FO3), respectively. We investigated the yield, soil property, the utilization of 31 carbon sources by soil microbes, soil bacterial community composition, and function prediction at the maturation stage. The results showed that (1) compared with CK, organic fertilizer substitution treatments improved ear number per hectare (13%-26%), grain numbers per spike (8%-14%), 1000-grain weight (7%-9%), and yield (3%-7%). Organic fertilizer substitution treatments increased the total nitrogen, available nitrogen, available phosphorus, and soil organic matter contents by 26%, 102%, 12%, and 26%, respectively, compared with CK treatments. Organic fertilizer substitution treatments significantly advanced the partial productivity of fertilizers. (2) Carbohydrates and amino acids were found to be the most sensitive carbon sources for soil microorganisms in different treatments. Particularly for FO3 treatment, the utilization of β-Methyl D-Glucoside, L-Asparagine acid, and glycogen by soil microorganisms was higher than other treatments and positively correlated with soil nutrients and wheat yield. (3) Compared with CK, organic fertilizer substitution treatments increased the relative abundance of Proteobacteria, Acidobacteria, and Gemmatimonadetes and decreased the relative abundance of Actinobacteria and Firmicutes. Interestingly, FO3 treatment improved the relative abundance of Nitrosovibrio, Kaistobacter, Balneimonas, Skermanella, Pseudomonas, and Burkholderia belonging to Proteobacteria and significantly boosted the relative abundance of function gene K02433 [the aspartyl-tRNA (Asn)/glutamyl-tRNA (Gln)]. Based on the abovementioned findings, we suggest FO3 as the most appropriate organic substitution method in rain-fed wheat fields.
Collapse
Affiliation(s)
- Xiaoli Liu
- College of Agriculture, Shanxi Agricultural University, Taigu, Shanxi, China
| | - Wenping Yang
- College of Life Sciences, North China University of Science and Technology, Tangshan, China
| | - Wenguang Li
- College of Agriculture, Shanxi Agricultural University, Taigu, Shanxi, China
| | - Aamir Ali
- College of Agriculture, Shanxi Agricultural University, Taigu, Shanxi, China
| | - Jie Chen
- College of Agriculture, Shanxi Agricultural University, Taigu, Shanxi, China
| | - Min Sun
- College of Agriculture, Shanxi Agricultural University, Taigu, Shanxi, China
| | - Zhiqiang Gao
- College of Agriculture, Shanxi Agricultural University, Taigu, Shanxi, China
| | - Zhenping Yang
- College of Agriculture, Shanxi Agricultural University, Taigu, Shanxi, China
| |
Collapse
|
4
|
Wang A, Fu W, Feng Y, Liu Z, Song D. Synergetic effects of microbial-phytoremediation reshape microbial communities and improve degradation of petroleum contaminants. JOURNAL OF HAZARDOUS MATERIALS 2022; 429:128396. [PMID: 35236043 DOI: 10.1016/j.jhazmat.2022.128396] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 01/20/2022] [Accepted: 01/28/2022] [Indexed: 06/14/2023]
Abstract
Microbial-phytoremediation is an effective bioremediation technology that introduces petroleum-degrading bacteria and oil-tolerant plants into oil-contaminated soils in order to achieve effective degradation of total petroleum hydrocarbons (TPH). In this work, natural attenuation (NA), microbial remediation (MR, using Acinetobacter sp. Tust-DM21), phytoremediation (PR, using Suaeda glauca), and microbial-phytoremediation (MPR, using both species) were utilized to degrade petroleum hydrocarbons. We evaluated four different biological treatments, assessing TPH degradation rates, soil enzyme activities, and the structure of microbial community in the petroleum-contaminated soil. This finding revealed that the roots of Suaeda glauca adsorbed small amounts of polycyclic aromatic hydrocarbons, causing the structure of soil microbiota community to reshape. The abundance of petroleum-degrading bacteria and plant growth-promoting rhizobacteria (PGPR) has increased, as has microbial diversity. According to correlation research, these genera increased soil enzyme activity, boosted the number of degradation-functional genes in the petroleum hydrocarbon degradation pathway, and accelerated the dissipation and degradation of TPH in petroleum-contaminated soil. This evidence contributes to a better understanding of the mechanisms involved in the combined microbial-phytoremediation strategies for contaminated soil, specifically the interaction between microflora and plants in co-remediation and the effects on the structural reshaping of rhizosphere microbial communities.
Collapse
Affiliation(s)
- Ao Wang
- College of Marine and Environmental Sciences, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Wenxian Fu
- College of Marine and Environmental Sciences, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Yu Feng
- College of Marine and Environmental Sciences, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Zhimin Liu
- College of Marine and Environmental Sciences, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Donghui Song
- College of Marine and Environmental Sciences, Tianjin University of Science and Technology, Tianjin 300457, China; Key Laboratory of Marine Resource Chemistry and Food Technology (TUST), Ministry of Education, Tianjin 300457, China.
| |
Collapse
|
5
|
Li S, Shi L, Lian WH, Lin ZL, Lu CY, Xu L, Wei QC, Zhang JY, Dong L, Li WJ. Arenibaculum pallidiluteum gen. nov., sp. nov., a novel bacterium in the family Azospirillaceae, isolated from desert soil, and reclassification of Skermanella xinjiangensis to a new genus Deserticella as Deserticella xinjiangensis comb. nov., and transfer of the genera Indioceanicola and Oleisolibacter from the family Rhodospirillaceae to the family Azospirillaceae. Int J Syst Evol Microbiol 2021; 71. [PMID: 34283015 DOI: 10.1099/ijsem.0.004874] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A novel pale orange-coloured bacterium, designated strain SYSU D00532T, was isolated from sandy soil collected from the Gurbantunggut desert in Xinjiang, PR China. Cells of strain SYSU D00532T were found to be aerobic, Gram-stain-negative, oxidase-positive, catalase-positive, motile and rod-shaped with a single polar or subpolar flagellum. Growth occurred at 15-45 °C (optimum, 28-37 °C, pH 5.0-8.0 (optimum, pH 6.0-7.0) and with 0-1.5% NaCl (w/v; optimum, 0.5 %). The major polar lipids consisted of diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylcholine and phosphatidylglycerol. Unidentified aminolipids, unidentified polar lipids, an unidentified aminophospholipid and an unidentified phospholipid were also detected. The major respiratory quinone was ubiquinone-10 and the major fatty acids were summed feature 8 (C18:1 ω7c and/or C18:1 ω6c), C16:0 and C19:0 cyclo ω8c. The genomic DNA G+C content was 69.8 mol%. Results of phylogenetic analysis based on 16S rRNA gene sequences indicated that strain SYSU D00532T belonged to the family Azospirillaceae and showed 93.4% (Desertibacter roseus 2622T), 93.2% (Skermanella xinjiangensis 10-1-101T), 93.2% ('Skermanella rubra' YIM 93097T) and 92.4% (Desertibacter xinjiangensis M71T) similarities. Based on the phylogenetic, phenotypic and chemotaxonomic data, strain SYSU D00532T is proposed to represent a new species of a new genus, named Arenibaculum pallidiluteum gen. nov., sp. nov., within the family Azospirillaceae. The type strain is SYSU D00532T (=KCTC 82269T=CGMCC 1.18631T=MCCC 1K04984T). We also propose the reclassification of Skermanella xinjiangensis to a new genus Deserticella as Deserticella xinjiangensis comb. nov., and the transfer of the genera Indioceanicola and Oleisolibacter from the family Rhodospirillaceae to the family Azospirillaceaewe based on the phylogenetic results.
Collapse
Affiliation(s)
- Shuai Li
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, PR China
| | - Lei Shi
- Division of Neurosurgical Intensive Care Unit, Department of Critical Care Medicine, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510080, PR China
| | - Wen-Hui Lian
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, PR China
| | - Zhi-Liang Lin
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, PR China
| | - Chun-Yan Lu
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, PR China
| | - Lu Xu
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, PR China
| | - Qi-Chuang Wei
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, PR China
| | - Jing-Yi Zhang
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, PR China
| | - Lei Dong
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, PR China
| | - Wen-Jun Li
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, PR China.,State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, PR China
| |
Collapse
|
6
|
Guo Q, Zhou Z, Zhang L, Zhang C, Chen M, Wang B, Lin M, Wang W, Zhang W, Li X. Skermanella pratensis sp. nov., isolated from meadow soil, and emended description of the genus Skermanella. Int J Syst Evol Microbiol 2020; 70:1605-1609. [DOI: 10.1099/ijsem.0.003944] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A novel Gram-stain-negative, light pink-coloured, short rod-shaped, designated strain W17T, was isolated from a meadow soil sample collected from Xinjiang, PR China. The 16S rRNA gene sequence analysis indicated that strain W17T was related most closely to
Skermanella rosea
M1T (98.72 %) and
Skermanella mucosa
8-14-6T (98.44 %). However, strain W17T showed a low level of DNA–DNA relatedness to
S. rosea
M1T (32.4±2.6 %) and
S. mucosa
8-14-6T (33.5±0.1 %). The genome size of the novel strain was 5.87 Mb and the genomic DNA G+C content was 67.27 mol%. The only respiratory quinone of strain W17T was Q-10. Diphosphatidylglycerol, phosphatidylglycerol. phosphatidylethanolamine and phosphatidylcholine were the major polar lipids. The predominant cellular fatty acids were C18 : 1ω6c and/or C18 : 1ω7c (48.53 %), C16 : 0 (20.88 %) and C18 : 0 (14.92 %). The phylogenetic, phenotypic and chemotaxonomic data showed that strain W17T represents a novel species of the genus
Skermanella
, for which the name Skermanella pratensis sp. nov. is proposed. The type strain is W17T (=GDMCC 1.1392T=KCTC 62434T).
Collapse
Affiliation(s)
- Qiannan Guo
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, Sichuan, PR China
| | - Zhengfu Zhou
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
| | - Lijuan Zhang
- Xinjiang Laboratory of Special Environmental Microbiology, Urumqi 830091, Xinjiang, PR China
- Institute of Applied Microbiology, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, Xinjiang, PR China
| | - Chen Zhang
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
| | - Ming Chen
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
| | - Bo Wang
- Xinjiang Laboratory of Special Environmental Microbiology, Urumqi 830091, Xinjiang, PR China
- Institute of Applied Microbiology, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, Xinjiang, PR China
| | - Min Lin
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
| | - Wei Wang
- Xinjiang Laboratory of Special Environmental Microbiology, Urumqi 830091, Xinjiang, PR China
- Institute of Applied Microbiology, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, Xinjiang, PR China
| | - Wei Zhang
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
| | - Xufeng Li
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, Sichuan, PR China
| |
Collapse
|
7
|
Oren A, Garrity GM. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2019; 69:5-9. [PMID: 30614438 DOI: 10.1099/ijsem.0.003174] [Citation(s) in RCA: 120] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Affiliation(s)
- Aharon Oren
- 1The Institute of Life Sciences, The Hebrew University of Jerusalem, The Edmond J. Safra Campus, 9190401 Jerusalem, Israel
| | - George M Garrity
- 2Department of Microbiology and Molecular Genetics, Biomedical Physical Sciences, Michigan State University, East Lansing, MI 48824-4320, USA
| |
Collapse
|
8
|
Luo L, Lin X, Zeng F, Luo S, Chen Z, Tian G. Performance of a novel photobioreactor for nutrient removal from piggery biogas slurry: Operation parameters, microbial diversity and nutrient recovery potential. BIORESOURCE TECHNOLOGY 2019; 272:421-432. [PMID: 30388580 DOI: 10.1016/j.biortech.2018.10.057] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 10/21/2018] [Accepted: 10/23/2018] [Indexed: 06/08/2023]
Abstract
Photobioreactor is deemed to be one of limiting factors for the commercial application of wastewater treatment based on microalgae cultivation. In this study, a novel Flat-Plate Continuous Open Photobioreactor (FPCO-PBR) was developed to treat piggery biogas slurry. The operation parameters, microbial stability and nutrient recovery potential of FPCO-PBR were investigated. Results showed that the appropriate influent mode for FPCO-PBR was multi-point or spraying mode. The optimal hydraulic retention time and interval time for biomass harvesting of FPCO-PBR were both 2 d. Nitrogen and phosphorus recovery rate were 30 mg L-1 d-1 and 7 mg L-1 d-1 respectively under optimal operating parameters. Microbial diversity remained relatively stable in FPCO-PBR. Biomass production rate of FPCO-PBR was 0.47 g L-1 d-1 under optimal operating parameters. The revenue generated from biomass was estimated to be 15.06 $ kg-1, which means that treating one ton of wastewater can generate $ 7.08 in revenue.
Collapse
Affiliation(s)
- Longzao Luo
- School of Chemistry and Environmental Science, Shangrao Normal University, Shangrao 334001, China; Department of Environmental Engineering, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Xiaoai Lin
- College of Life Science, Shangrao Normal University, Shangrao 334001, China
| | - Fanjian Zeng
- Department of Environmental Engineering, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Shuang Luo
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Zongbao Chen
- School of Chemistry and Environmental Science, Shangrao Normal University, Shangrao 334001, China
| | - Guangming Tian
- Department of Environmental Engineering, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China.
| |
Collapse
|
9
|
Heo ST, Kwon KT, Yoo JR, Choi JY, Lee KH, Ko KS. First Case of Necrotizing Fasciitis Caused by Skermanella aerolata Infection Mimicking Vibrio Sepsis. Ann Lab Med 2018; 38:604-606. [PMID: 30027706 PMCID: PMC6056393 DOI: 10.3343/alm.2018.38.6.604] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Revised: 04/26/2018] [Accepted: 06/08/2018] [Indexed: 11/19/2022] Open
Affiliation(s)
- Sang Taek Heo
- Department of Infectious Disease, Jeju National University School of Medicine, Jeju, Korea
| | - Ki Tae Kwon
- Department of Internal Medicine, School of Medicine, Kyungpook National University, Daegu, Korea
| | - Jeong Rae Yoo
- Department of Infectious Disease, Jeju National University School of Medicine, Jeju, Korea
| | - Ji Young Choi
- Department of Molecular Cell Biology and Samsung Medical Center, Sungkyunkwan University School of Medicine, Suwon, Korea
| | - Keun Hwa Lee
- Department of Microbiology and Immunology, Jeju National University School of Medicine, Jeju, Korea
| | - Kwan Soo Ko
- Department of Molecular Cell Biology and Samsung Medical Center, Sungkyunkwan University School of Medicine, Suwon, Korea.
| |
Collapse
|