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Guo D, Wang Y, Zhang Y, Duan J, Guan F, Hou B. Effects of marine eutrophication environment on microbial corrosion: A review. MARINE POLLUTION BULLETIN 2024; 205:116637. [PMID: 38955090 DOI: 10.1016/j.marpolbul.2024.116637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2024] [Revised: 06/18/2024] [Accepted: 06/18/2024] [Indexed: 07/04/2024]
Abstract
Metal materials undergo severe corrosion in eutrophic environments. The effect of DO decay stimulated by high concentrations of nitrogen and phosphorus pollutants on microorganisms leads to the coupling of electrochemical and microbial corrosion processes. However, there are few studies on microbial corrosion mechanisms in eutrophic environments. This article discusses the corrosive factors of marine eutrophication, summarizes the impact of marine eutrophication on microbial corrosion and the potential mechanisms, including aerobic biofilm corrosion, aerobic & anaerobic mixed biofilm corrosion, and anaerobic microbial electron transfer corrosion, and expounds on the research methods for microbial corrosion of materials serving in estuarine areas prone to pollution. Microbial prevention and control, such as nutrient restriction and microbial interspecies competition, are of research value in the field of green protection. Microbial corrosion mechanisms studies in marine eutrophication environments are significant for environment monitor development, water intake and algae control technologies, and corrosion protection in polluted environments.
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Affiliation(s)
- Ding Guo
- Key Laboratory of Advanced Marine Materials, Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, 88 Haijun Road, Qingdao 266071, China; University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100039, China
| | - Yanan Wang
- Key Laboratory of Advanced Marine Materials, Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, 88 Haijun Road, Qingdao 266071, China; University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100039, China
| | - Yimeng Zhang
- Key Laboratory of Advanced Marine Materials, Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, 88 Haijun Road, Qingdao 266071, China
| | - Jizhou Duan
- Key Laboratory of Advanced Marine Materials, Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, 88 Haijun Road, Qingdao 266071, China.
| | - Fang Guan
- Key Laboratory of Advanced Marine Materials, Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, 88 Haijun Road, Qingdao 266071, China.
| | - Baorong Hou
- Key Laboratory of Advanced Marine Materials, Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, 88 Haijun Road, Qingdao 266071, China
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2
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He X, Lin G, Zeng J, Yang Z, Wang L. Construction of algal-bacterial consortia using green microalgae Chlorella vulgaris and As(III)-oxidizing bacteria: As tolerance and metabolomic profiling. J Environ Sci (China) 2024; 139:258-266. [PMID: 38105053 DOI: 10.1016/j.jes.2023.04.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 04/06/2023] [Accepted: 04/06/2023] [Indexed: 12/19/2023]
Abstract
Bioremediation became a promising technology to resolve arsenic (As) contamination in aquatic environment. Since monoculture such as microalgae or bacteria was sensitive to environmental disturbance and vulnerable to contamination, green microalgae Chlorella vulgaris and arsenite (As(III)) - oxidizing bacteria Pseudomonas sp. SMS11 were co-cultured to construct algal-bacterial consortia in the current study. The effects of algae-bacteria (A:B) ratio and exposure As(III) concentration on algal growth, As speciation and metabolomic profile were investigated. Algal growth arrested when treated with 100 mg/L As(III) without the co-cultured bacteria. By contrast, co-cultured with strain SMS11 significantly enhanced As tolerance in C. vulgaris especially with A:B ratio of 1:10. All the As(III) in culture media of the consortia were oxidized into As(V) on day 7. Methylation of As was observed on day 14. Over 1% and 0.5% of total As were converted into dimethylarsinic acid (DMA) after 21 days cultivation when the initial concentrations of As(III) were 1 and 10 mg/L, respectively. Metabolomic analysis was further performed to reveal the response of consortia metabolites to external As(III). The enriched metabolomic pathways were associated with carbohydrate, amino acid and energy metabolisms. Tricarboxylic acid cycle and glyoxylate and dicarboxylate metabolism were upregulated under As stress due to their biological functions on alleviating oxidative stress and protecting cells. Both carbohydrate and amino acid metabolisms provided precursors and potential substrates for energy production and cell protection under abiotic stress. Alterations of the pathways relevant to carbohydrate or amino acid metabolism were triggered by energy requirement.
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Affiliation(s)
- Xiaoman He
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Guobing Lin
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Jiayuan Zeng
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Zhaoguang Yang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China; Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, Central South University, Changsha 410083, China
| | - Lin Wang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China; Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, Central South University, Changsha 410083, China.
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Kumar N, Shukla P. Microalgal multiomics-based approaches in bioremediation of hazardous contaminants. ENVIRONMENTAL RESEARCH 2024; 247:118135. [PMID: 38218523 DOI: 10.1016/j.envres.2024.118135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 12/26/2023] [Accepted: 01/05/2024] [Indexed: 01/15/2024]
Abstract
The enhanced industrial growth and higher living standards owing to the incessant population growth have caused heightened production of various chemicals in different manufacturing sectors globally, resulting in pollution of aquatic systems and soil with hazardous chemical contaminants. The bioremediation of such hazardous pollutants through microalgal processes is a viable and sustainable approach. Accomplishing microalgal-based bioremediation of polluted wastewater requires a comprehensive understanding of microalgal metabolic and physiological dynamics. Microalgae-bacterial consortia have emerged as a sustainable agent for synergistic bioremediation and metabolite production. Effective bioremediation involves proper consortium functioning and dynamics. The present review highlights the mechanistic processes employed through microalgae in reducing contaminants present in wastewater. It discusses the multi-omics approaches and their advantages in understanding the biological processes, monitoring, and dynamics among the partners in consortium through metagenomics. Transcriptomics, proteomics, and metabolomics enable an understanding of microalgal cell response toward the contaminants in the wastewater. Finally, the challenges and future research endeavors are summarised to provide an outlook on microalgae-based bioremediation.
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Affiliation(s)
- Niwas Kumar
- Enzyme Technology and Protein Bioinformatics Laboratory, School of Biotechnology, Institute of Science, Banaras Hindu University, Varanasi, 221005, India
| | - Pratyoosh Shukla
- Enzyme Technology and Protein Bioinformatics Laboratory, School of Biotechnology, Institute of Science, Banaras Hindu University, Varanasi, 221005, India.
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4
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Wang M, Zhang W, He T, Rong L, Yang Q. Degradation of polycyclic aromatic hydrocarbons in aquatic environments by a symbiotic system consisting of algae and bacteria: green and sustainable technology. Arch Microbiol 2023; 206:10. [PMID: 38059992 DOI: 10.1007/s00203-023-03734-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/27/2023] [Accepted: 11/04/2023] [Indexed: 12/08/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are genotoxic, carcinogenic, and persistent in the environment and are therefore of great concern in the environmental protection field. Due to the inherent recalcitrance, persistence and nonreactivity of PAHs, they are difficult to remediate via traditional water treatment methods. In recent years, microbial remediation has been widely used as an economical and environmentally friendly degradation technology for the treatment of PAH-contaminated water. Various bacterial and microalgal strains are capable of potentially degrading or transforming PAHs through intrinsic metabolic pathways. However, their biodegradation potential is limited by the cytotoxic effects of petroleum hydrocarbons, unfavourable environmental conditions, and biometabolic limitations. To address this limitation, microbial communities, biochemical pathways, enzyme systems, gene organization, and genetic regulation related to PAH degradation have been intensively investigated. The advantages of algal-bacterial cocultivation have been explored, and the limitations of PAHs degradation by monocultures of algae or bacteria have been overcome by algal-bacterial interactions. Therefore, a new model consisting of a "microalgal-bacterial consortium" is becoming a new management strategy for the effective degradation and removal of PAHs. This review first describes PAH pollution control technologies (physical remediation, chemical remediation, bioremediation, etc.) and proposes an algal-bacterial symbiotic system for the degradation of PAHs by analysing the advantages, disadvantages, and PAH degradation performance in this system to fill existing research gaps. Additionally, an algal-bacterial system is systematically developed, and the effects of environmental conditions are explored to optimize the degradation process and improve its technical feasibility. The aim of this paper is to provide readers with an effective green and sustainable remediation technology for removing PAHs from aquatic environments.
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Affiliation(s)
- Mengying Wang
- Beijing Key Laboratory of Water Resources & Environmental Engineering, China University of Geosciences (Beijing), Beijing, 100083, People's Republic of China
| | - Wenqing Zhang
- Beijing Key Laboratory of Water Resources & Environmental Engineering, China University of Geosciences (Beijing), Beijing, 100083, People's Republic of China
| | - Tao He
- College of Environmental Science and Engineering, Dalian Maritime University, Dalian, 116026, China
| | - Lingyun Rong
- Beijing Key Laboratory of Water Resources & Environmental Engineering, China University of Geosciences (Beijing), Beijing, 100083, People's Republic of China
| | - Qi Yang
- Beijing Key Laboratory of Water Resources & Environmental Engineering, China University of Geosciences (Beijing), Beijing, 100083, People's Republic of China.
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Zheng N, Hu W, Zhou X, Liu Y, Bartlam M, Wang Y. Influence of phycospheric bacterioplankton disruption or removal on algae growth and survival. ENVIRONMENTAL RESEARCH 2023; 237:117060. [PMID: 37659640 DOI: 10.1016/j.envres.2023.117060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 08/01/2023] [Accepted: 08/31/2023] [Indexed: 09/04/2023]
Abstract
Phycospheric bacteria play a crucial role in the survival of microalgae. However, the potential of using the growth regulation and community structure modulation of phycospheric bacteria to prevent the occurrence of blooms is yet to be verified. The phycospheric bacterioplankton of Cyclotella sp. can be categorized into HNA (high nucleic acid) bacteria and LNA (low nucleic acid) bacteria. 16S rRNA sequencing showed that the HNA bacteria exhibited higher α-diversity compared to the LNA bacteria, and the microbial community composition also exhibited variations. Metagenomic sequencing further indicated the distinct ecological functions between HNA and LNA bacteria. Furthermore, the study showcased the restorative capacity of the phycospheric bacterioplankton. Biomass analysis revealed that the recovery of phycospheric bacterioplankton positively influenced the microalgae growth, thus affirming the significance of phycospheric bacterioplankton to microalgae. The community structure of phycospheric bacterioplankton demonstrated a notable decrease in the abundance of restored LNA core bacteria. Additionally, the restored phycospheric bacterioplankton exhibited a more complex co-occurrence network structure, resulting in decreased resistance and sensitivity of microalgae to adverse environments. The presence of phycospheric bacterioplankton provides a protective shield for microalgae, and thus destabilizing or removing phycospheric bacterioplankton may effectively inhibit growth of microalgae.
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Affiliation(s)
- Ningning Zheng
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), Nankai International Advanced Research Institute (Shenzhen Futian), Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China
| | - Wei Hu
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), Nankai International Advanced Research Institute (Shenzhen Futian), Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China
| | - Xinzhu Zhou
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), Nankai International Advanced Research Institute (Shenzhen Futian), Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China
| | - Yu Liu
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), Nankai International Advanced Research Institute (Shenzhen Futian), Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China
| | - Mark Bartlam
- State Key Laboratory of Medicinal Chemical Biology, Nankai International Advanced Research Institute (Shenzhen Futian), College of Life Sciences, Nankai University, Tianjin, 300350, China.
| | - Yingying Wang
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), Nankai International Advanced Research Institute (Shenzhen Futian), Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China.
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6
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Li X, Liu J, Tian J, Pan Z, Chen Y, Ming F, Wang R, Wang L, Zhou H, Li J, Tan Z. Co-cultivation of microalgae-activated sludge for municipal wastewater treatment: Exploring the performance, microbial co-occurrence patterns, microbiota dynamics and function during the startup stage. BIORESOURCE TECHNOLOGY 2023; 374:128733. [PMID: 36774984 DOI: 10.1016/j.biortech.2023.128733] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 02/05/2023] [Accepted: 02/08/2023] [Indexed: 06/18/2023]
Abstract
Microalgae consortium is a promising technology for achieving low-carbon and resource utilization goals in municipal wastewater treatment. However, little is known about how the consortium affects the treatment performance in the startup stage of co-cultivation. Herein, photobioreactors were constructed with different contents of microalgae and activated sludge (AS) (wt.microalgae: wt.AS ≥ 50 %). The results showed that the concentration of microalgae increased by more than 20 % with AS, and the effluents were close or lower than Chinese discharge standards within HRT 24 h (NH4+-N, TP, and COD ≤ 5.0, 0.5, and 50 mg L-1). Furthermore, the co-occurrence pattern of microbial populations experienced inhibition-reconstruction and reconstruction-inhibition processes, respectively, and the inter-species relationship was directly related to the effluent quality. Microalgal concentration and temperature were the key factors to the microbial community profiling. The potential microorganisms in AS could promote the growth of microalgae, and the bacteria and fungi formed co-metabolism through functional complementation.
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Affiliation(s)
- Xin Li
- CAS Key Laboratory of Environmental and Applied Microbiology, Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Jian Liu
- Institute of Resources and Environmental Engineering, Mianyang Teacher's College, Mianyang 621000, China
| | - Jiansong Tian
- Institute of Resources and Environmental Engineering, Mianyang Teacher's College, Mianyang 621000, China
| | - Zhicheng Pan
- Haitian Water Group Co., LTD., Chengdu 610203, China
| | - Yangwu Chen
- CAS Key Laboratory of Environmental and Applied Microbiology, Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Fei Ming
- Institute of Resources and Environmental Engineering, Mianyang Teacher's College, Mianyang 621000, China
| | - Rui Wang
- Haitian Water Group Co., LTD., Chengdu 610203, China
| | - Lin Wang
- CAS Key Laboratory of Environmental and Applied Microbiology, Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Houzhen Zhou
- CAS Key Laboratory of Environmental and Applied Microbiology, Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Junjie Li
- CAS Key Laboratory of Environmental and Applied Microbiology, Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Zhouliang Tan
- CAS Key Laboratory of Environmental and Applied Microbiology, Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China.
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7
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Li P, Hu Z, Yin Q, Song C. Improving the growth of Spirulina in CO 2 absorption and microalgae conversion (CAMC) system through mixotrophic cultivation: Reveal of metabolomics. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 858:159920. [PMID: 36356767 DOI: 10.1016/j.scitotenv.2022.159920] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 10/07/2022] [Accepted: 10/30/2022] [Indexed: 06/16/2023]
Abstract
Mixotrophic cultivation was proposed to enhance the biomass and carbon sequestration efficiency of Spirulina in CO2 absorption and microalgae conversion (CAMC) system, and the underlying metabolic mechanism was also explored. The result showed that mixotrophic enhanced the performance of CAMC system, the maximum biomass, total carbon conversion capacity and efficiency was obtained at 0.5 g/L acetate group, which was 60.47 %, 63.06 % and 59.77 % higher than control. Adding 0.5 g/L acetate enhanced the activities of Rubisco and Acetyl-CoA, arrived at 89.59 U/g and 5.16 nmol/g, respectively. Metabolomics analyses suggested that mixotrophic changed metabolic flux and affected intracellular composition. Mixotrophic up-regulated Calvin cycle, glycolysis, and tricarboxylic acid (TCA) cycle, induced more carbon fluxes into central carbon metabolism for the growth of Spirulina. These results suggested that mixotrophic could supply effective energy and carbon skeleton for rapid growth of Spirulina, and provided a theoretical basis for large-scale application of CAMC system.
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Affiliation(s)
- Pengcheng Li
- Tianjin Key Laboratory of Indoor Air Environmental Quality Control, School of Environmental Science and Engineering, Tianjin University, 92 Weijin Road, Nankai District, Tianjin 300072, PR China
| | - Zhan Hu
- Tianjin Key Laboratory of Indoor Air Environmental Quality Control, School of Environmental Science and Engineering, Tianjin University, 92 Weijin Road, Nankai District, Tianjin 300072, PR China
| | - Qingrong Yin
- Tianjin Key Laboratory of Indoor Air Environmental Quality Control, School of Environmental Science and Engineering, Tianjin University, 92 Weijin Road, Nankai District, Tianjin 300072, PR China
| | - Chunfeng Song
- Tianjin Key Laboratory of Indoor Air Environmental Quality Control, School of Environmental Science and Engineering, Tianjin University, 92 Weijin Road, Nankai District, Tianjin 300072, PR China.
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8
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Janpum C, Pombubpa N, Monshupanee T, Incharoensakdi A, In-Na P. Advancement on mixed microalgal-bacterial cultivation systems for nitrogen and phosphorus recoveries from wastewater to promote sustainable bioeconomy. J Biotechnol 2022; 360:198-210. [PMID: 36414126 DOI: 10.1016/j.jbiotec.2022.11.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 11/07/2022] [Accepted: 11/17/2022] [Indexed: 11/21/2022]
Abstract
Biological wastewater treatment is a promising and environmentally friendly method that utilises living microorganisms to remediate water and enable recovery or conversion of contaminants into valuable products. For many decades, microalgae and cyanobacteria, photosynthetic living microorganisms, have been explored extensively for wastewater bioremediation. They can be used for recovering valuable nutrients such as nitrogen and phosphorous from secondary effluents and capable of transforming those nutrients into marketable products such as biofuels, biofertilisers, nutraceutical, and pigments for promoting a Bio-Circular Green economy. In recent years, there has been a shift towards mixing compatible microalgae with bacteria, which is inspired by their natural symbiotic relationships to increase nitrogen and phosphorus recoveries. With this enhanced bioremediation, recovery of polluted wastes can be intensified and higher biomass quality (with high nutrient density) can be achieved. This review focuses on the state-of-the-art of mixed microalgal-bacterial cultivating systems. A comprehensive comparison of existing studies that used Chlorella species as microalgae in various mixed microalgal-bacterial cultivating systems (suspension, biofilm, and immobilisation) for nitrogen and phosphorus recoveries from wastewater is conducted. Key technical challenges such as balancing microalgae and bacteria species, pH regulation, light distribution, biomass harvesting, and biomass conversion are also discussed. From the data comparisons among different cultivation systems, it has been suggested that immobilisation appears to require less amount of operational light compared to the suspended and biofilm-based systems for similar nitrogen and phosphorus removal efficiencies.
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Affiliation(s)
- Chalampol Janpum
- Department of Chemical Technology, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
| | - Nuttapon Pombubpa
- Department of Microbiology, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
| | - Tanakarn Monshupanee
- Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
| | - Aran Incharoensakdi
- Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
| | - Pichaya In-Na
- Department of Chemical Technology, Faculty of Science, Chulalongkorn University, Bangkok, Thailand.
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9
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Construction of microalgae-bacteria consortium to remove typical Neonicotinoids Imidacloprid and Thiacloprid from municipal wastewater: Difference of algae performance, removal effect and product toxicity. Biochem Eng J 2022. [DOI: 10.1016/j.bej.2022.108634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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10
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Cheng Y, Wang H, Deng Z, Wang J, Liu Z, Chen Y, Ma Y, Li B, Yang L, Zhang Z, Wu L. Efficient removal of Imidacloprid and nutrients by algae-bacteria biofilm reactor (ABBR) in municipal wastewater: Performance, mechanisms and the importance of illumination. CHEMOSPHERE 2022; 305:135418. [PMID: 35750233 DOI: 10.1016/j.chemosphere.2022.135418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 04/25/2022] [Accepted: 06/16/2022] [Indexed: 06/15/2023]
Abstract
Neonicotinoids, such as Imidacloprid (IMI), are frequently detected in water and wastewater, posing a threat on both the environment and the health of living things. In this work, a novel algae-bacteria biofilm reactor (ABBR) was constructed to remove IMI and conventional nutrients from municipal wastewater, aiming to explore the removal effect and advantage of ABBR. Results showed that ABBR achieved 74.9% removal of IMI under 80 μmol m-2·s-1 light, higher than photobioreactor (PBR) without biofilm (61.2%) or ABBR under 40 μmol m-2·s-1 light (48.4%) after 16 days of operation. Moreover, it also showed that ABBR allowed a marked improvement on the removal of total dissolved nitrogen (TDN), total dissolved phosphorus (TDP) and soluble chemical oxygen demand (sCOD). ABBR showed different IMI removal efficiencies and bacterial communities under different light conditions, indicating that light played an important role in driving ABBR. The merits of ABBR are including (i) ABBR showed rapid pollutant removal in a short time, (ii) in ABBR, stable consortiums were formed and chlorophyll content in effluent was very low, (iii) compared with PBR, degradation products in ABBR showed lower biological toxicity. Our study highlights the benefits of ABBR on IMI removing from municipal wastewater and provides an effective and environment-friendly engineering application potential of IMI removal.
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Affiliation(s)
- Yongtao Cheng
- Hubei Key Laboratory of Mineral Resources Processing and Environment, School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, PR China
| | - Hongyu Wang
- Hubei Key Laboratory of Mineral Resources Processing and Environment, School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, PR China
| | - Zhikang Deng
- Hubei Key Laboratory of Mineral Resources Processing and Environment, School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, PR China
| | - Jiping Wang
- Hubei Key Laboratory of Mineral Resources Processing and Environment, School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, PR China
| | - Zhe Liu
- Hubei Key Laboratory of Mineral Resources Processing and Environment, School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, PR China
| | - Yulin Chen
- Hubei Key Laboratory of Mineral Resources Processing and Environment, School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, PR China
| | - Yongfei Ma
- Hubei Key Laboratory of Mineral Resources Processing and Environment, School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, PR China
| | - Bolin Li
- Hubei Key Laboratory of Mineral Resources Processing and Environment, School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, PR China
| | - Lie Yang
- Hubei Key Laboratory of Mineral Resources Processing and Environment, School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, PR China
| | - Zulin Zhang
- Hubei Key Laboratory of Mineral Resources Processing and Environment, School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, PR China; The James Hutton Institute, Craigiebuckler, Aberdeen, ABI5 8QH, UK
| | - Li Wu
- Hubei Key Laboratory of Mineral Resources Processing and Environment, School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, PR China.
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11
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Kiki C, Qiu Y, Wang Q, Ifon BE, Qin D, Chabi K, Yu CP, Zhu YG, Sun Q. Induced aging, structural change, and adsorption behavior modifications of microplastics by microalgae. ENVIRONMENT INTERNATIONAL 2022; 166:107382. [PMID: 35803076 DOI: 10.1016/j.envint.2022.107382] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 06/05/2022] [Accepted: 06/27/2022] [Indexed: 06/15/2023]
Abstract
The effects of microalgal biofouling on microplastic (MP) may differ from bacterial biofouling. In this study, the influence of microalgae on MP surface alteration, structural change, and adsorption of organic micropollutants was evaluated. Virgin polyethylene (PE), polyvinyl chloride (PVC), and polyamide (PA) were each immersed in algal photobioreactor and river freshwater for 30 days to simulate algal and river microbe biofouling respectively. Consequently, their physicochemical changes and adsorption potential of a mixture of six bisphenol analogues (BPA, BPS, BPE, BPB, BPF, BPAF) and two parabens (propyl-paraben, benzyl-paraben) were investigated. Owing to the algal bioactive compounds, major microalgae-induced biofouling and more MP aging than the river microbe aging were observed through fractures, pits, cracks, and algal attachments. Intrusion of algal organic matter and scission of polymeric functional groups were revealed during microalgal immersion and the potential MP aging pathways were proposed. Algal biofouling considerably altered the intrinsic properties of the MPs, consequently the adsorption capacity of PE and PVC was enhanced by 3.04-6.72 and 2.14-8.72 times, respectively. Adsorption process onto algal-aged MPs was pH-dependent, endothermic, non-spontaneous, and favored by hydrogen bonds. Meanwhile, the amide group in PA structure was conducive to organic micropollutant adsorption, which was likely reduced by algal aging and the erosion of the N-H stretching. Moreover, higher adsorption capacities of organic micropollutants were shown by the algal-biofilm PE and PVC than virgin and river microbial biofilm MPs. This study discloses that, biofouling and aging of MPs by microalgae through their bioactive components would engender more incidences on MP properties, organic micropollutants adsorption with associated environmental and health hazards.
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Affiliation(s)
- Claude Kiki
- CAS Key Laboratory of Urban Pollutant Conversion, Fujian Key Laboratory of Watershed Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; University of Chinese Academy of Sciences, Beijing 100043, China; National Institute of Water, University of Abomey-Calavi, 01 BP: 526, Cotonou, Benin
| | - Ying Qiu
- CAS Key Laboratory of Urban Pollutant Conversion, Fujian Key Laboratory of Watershed Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China
| | - Qi Wang
- College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China
| | - Binessi Edouard Ifon
- CAS Key Laboratory of Urban Pollutant Conversion, Fujian Key Laboratory of Watershed Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; University of Chinese Academy of Sciences, Beijing 100043, China
| | - Dan Qin
- CAS Key Laboratory of Urban Pollutant Conversion, Fujian Key Laboratory of Watershed Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Kassim Chabi
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; University of Chinese Academy of Sciences, Beijing 100043, China
| | - Chang-Ping Yu
- CAS Key Laboratory of Urban Pollutant Conversion, Fujian Key Laboratory of Watershed Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Yong-Guan Zhu
- CAS Key Laboratory of Urban Pollutant Conversion, Fujian Key Laboratory of Watershed Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Qian Sun
- CAS Key Laboratory of Urban Pollutant Conversion, Fujian Key Laboratory of Watershed Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China.
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12
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Bleisch R, Freitag L, Ihadjadene Y, Sprenger U, Steingröwer J, Walther T, Krujatz F. Strain Development in Microalgal Biotechnology-Random Mutagenesis Techniques. LIFE (BASEL, SWITZERLAND) 2022; 12:life12070961. [PMID: 35888051 PMCID: PMC9315690 DOI: 10.3390/life12070961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 06/15/2022] [Accepted: 06/22/2022] [Indexed: 11/17/2022]
Abstract
Microalgal biomass and metabolites can be used as a renewable source of nutrition, pharmaceuticals and energy to maintain or improve the quality of human life. Microalgae’s high volumetric productivity and low impact on the environment make them a promising raw material in terms of both ecology and economics. To optimize biotechnological processes with microalgae, improving the productivity and robustness of the cell factories is a major step towards economically viable bioprocesses. This review provides an overview of random mutagenesis techniques that are applied to microalgal cell factories, with a particular focus on physical and chemical mutagens, mutagenesis conditions and mutant characteristics.
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Affiliation(s)
- Richard Bleisch
- Institute of Natural Materials Technology, Technische Universität Dresden, 01069 Dresden, Germany; (R.B.); (L.F.); (Y.I.); (U.S.); (J.S.); (T.W.)
| | - Leander Freitag
- Institute of Natural Materials Technology, Technische Universität Dresden, 01069 Dresden, Germany; (R.B.); (L.F.); (Y.I.); (U.S.); (J.S.); (T.W.)
| | - Yob Ihadjadene
- Institute of Natural Materials Technology, Technische Universität Dresden, 01069 Dresden, Germany; (R.B.); (L.F.); (Y.I.); (U.S.); (J.S.); (T.W.)
| | - Una Sprenger
- Institute of Natural Materials Technology, Technische Universität Dresden, 01069 Dresden, Germany; (R.B.); (L.F.); (Y.I.); (U.S.); (J.S.); (T.W.)
| | - Juliane Steingröwer
- Institute of Natural Materials Technology, Technische Universität Dresden, 01069 Dresden, Germany; (R.B.); (L.F.); (Y.I.); (U.S.); (J.S.); (T.W.)
| | - Thomas Walther
- Institute of Natural Materials Technology, Technische Universität Dresden, 01069 Dresden, Germany; (R.B.); (L.F.); (Y.I.); (U.S.); (J.S.); (T.W.)
| | - Felix Krujatz
- Institute of Natural Materials Technology, Technische Universität Dresden, 01069 Dresden, Germany; (R.B.); (L.F.); (Y.I.); (U.S.); (J.S.); (T.W.)
- Biotopa gGmbH—Center for Applied Aquaculture & Bioeconomy, 01454 Radeberg, Germany
- Faculty of Natural and Environmental Sciences, University of Applied Sciences Zittau/Görlitz, 02763 Zittau, Germany
- Correspondence:
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13
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Qixin L, Xuan F, Zhiya S, Wenxin S, Shuo W, Ji L. Enhanced wastewater treatment performance by understanding the interaction between algae and bacteria based on quorum sensing. BIORESOURCE TECHNOLOGY 2022; 354:127161. [PMID: 35429596 DOI: 10.1016/j.biortech.2022.127161] [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: 03/02/2022] [Revised: 04/09/2022] [Accepted: 04/11/2022] [Indexed: 06/14/2023]
Abstract
In order to further obtain sustainable wastewater treatment technology, in-depth analysis based on algal-bacterial symbiosis, quorum sensing signal molecules and algal-bacterial relationship will lay the foundation for the synergistic algal-bacterial wastewater treatment process. The methods of enhancing algae and bacteria wastewater treatment technology were systematically explored, including promoting symbiosis, reducing algicidal behavior, eliminating the interference of quorum sensing inhibitor, and developing algae and bacteria granular sludge. These findings can provide guidance for sustainable economic and environmental development, and facilitate carbon emissions reduction by using algae and bacteria synergistic wastewater treatment technology in further attempts. The future work should be carried out in the following four aspects: (1) Screening of dominant microalgae and bacteria; (2) Coordination of stable (emerging) contaminants removal; (3) Utilization of algae to produce fertilizers and feed (additives), and (4) Constructing recombinant algae and bacteria for reducing carbon emissions and obtaining high value-added products.
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Affiliation(s)
- Liu Qixin
- Jiangsu Key Laboratory of Anaerobic Biotechnology, School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122, China
| | - Feng Xuan
- Jiangsu Key Laboratory of Anaerobic Biotechnology, School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122, China
| | - Sheng Zhiya
- Department of Civil and Environmental Engineering, University of Alberta, Edmonton T6G 2W2, Canada
| | - Shi Wenxin
- College of Environment and Ecology, Chongqing University, Chongqing 400030, China
| | - Wang Shuo
- Jiangsu Key Laboratory of Anaerobic Biotechnology, School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122, China; Jiangsu Engineering Laboratory for Biomass Energy and Carbon Reduction Technology, Wuxi 214122, China; Jiangsu College of Water Treatment Technology and Material Collaborative Innovation Center, Suzhou 215009, China.
| | - Li Ji
- Jiangsu Key Laboratory of Anaerobic Biotechnology, School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122, China; Jiangsu Engineering Laboratory for Biomass Energy and Carbon Reduction Technology, Wuxi 214122, China; Jiangsu College of Water Treatment Technology and Material Collaborative Innovation Center, Suzhou 215009, China
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14
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Kant Bhatia S, Ahuja V, Chandel N, Mehariya S, Kumar P, Vinayak V, Saratale GD, Raj T, Kim SH, Yang YH. An overview on microalgal-bacterial granular consortia for resource recovery and wastewater treatment. BIORESOURCE TECHNOLOGY 2022; 351:127028. [PMID: 35318147 DOI: 10.1016/j.biortech.2022.127028] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 03/12/2022] [Accepted: 03/16/2022] [Indexed: 06/14/2023]
Abstract
Excessive generation of wastewater is a matter of concern around the globe. Wastewater treatment utilizing a microalgae-mediated process is considered an eco-friendly and sustainable method of wastewater treatment. However, low biomass productivity, costly harvesting process, and energy extensive cultivation process are the major bottleneck. The use of the microalgal-bacteria granular consortia (MBGC) process is economic and requires less energy. For efficient utilization of MBGC, knowledge of its structure, composition and interaction are important. Various microscopic, molecular and metabolomics techniques play a significant role in understating consortia structure and interaction between partners. Microalgal-bacteria granular consortia structure is affected by various cultivation parameters like pH, temperature, light intensity, salinity, and the presence of other pollutants in wastewater. In this article, a critical evaluation of recent literature was carried out to develop an understanding related to interaction behavior that can help to engineer consortia having efficient nutrient removal capacity with reduced energy consumption.
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Affiliation(s)
- Shashi Kant Bhatia
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, Republic of Korea; Institute for Ubiquitous Information Technology and Applications, Seoul 05029, Republic of Korea
| | - Vishal Ahuja
- Department of Biotechnology, Himachal Pradesh University, Shimla 171005, India
| | - Neha Chandel
- School of Medical and Allied Sciences, GD Goenka University, Gurugram-122103, Haryana, India
| | | | - Pradeep Kumar
- Faculty of Applied Sciences and Biotechnology, Shoolini University of Biotechnology and Management Sciences, Solan 173229, India
| | - Vandana Vinayak
- Diatom Nanoengineering and Metabolism Laboratory (DNM), School of Applied Sciences, Dr. Harisingh Gour Vishwavidyalaya (A Central University), Sagar, Madhya Pradesh 470003, India
| | - Ganesh Dattatraya Saratale
- Department of Food Science and Biotechnology, Dongguk University-Seoul, 32 Dongguk-ro, Ilsandong-gu, Goyang-si 10326, Gyeonggi-do, Republic of Korea
| | - Tirath Raj
- School of Civil and Environmental Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Sang-Hyoun Kim
- School of Civil and Environmental Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Yung-Hun Yang
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, Republic of Korea; Institute for Ubiquitous Information Technology and Applications, Seoul 05029, Republic of Korea.
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15
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Huang L, Xie T, Wang Y, Tan S, Lu Z, Wang L, Mo C. Symbiotic treatment of ammonia-nitrogen wastewater by algae and activated sludge: effects of algae and sludge inoculation rates. ENVIRONMENTAL TECHNOLOGY 2022:1-11. [PMID: 35184701 DOI: 10.1080/09593330.2022.2044919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Accepted: 02/11/2022] [Indexed: 06/14/2023]
Abstract
A symbiotic microalgal-bacterial system may be an optional technology for wastewater treatment. It was composed of microalgae and activated sludge and established in the SBR to explore the effect of different dosing ratios of algae and sludge on the removal of nitrogen and phosphorus from simulated wastewater containing ammonium. It can be seen from the result that varied algae-sludge dosing ratios had a higher removal effect on COD removal, but the difference was not significant. The algal-bacterial symbiosis system had a 100% removal rate for ammonium removal on the 8th day. Relatively speaking, the removal of nutrients and related mechanisms vary with environmental conditions (inoculation rate). In general, when the additive ratio was 5:1 (algae: AS), the removal rate of TN and TP was the highest, reaching 53.85% and 85.13% in the shortest time (14 days), among them, the removal rate of ammonium and COD was 100%, and the reduction rates of Nitrite nitrogen and Nitrate nitrogen were 362.99% and 73.42%, respectively. In addition, 16S rDNA gene analysis results demonstrated that the microbial community in the reactor with algal sludge inoculation ratio of 5:1 had differences in three stages of the initial reaction, the middle reaction and the end of the reaction. Comamonadaceae, Flavobacterium, Paenarthrobacter, Mesorhizobium, Nitrobacter were enriched during the reaction operation.
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Affiliation(s)
- Lizhen Huang
- School of Resources, Environment and Materials Guangxi University, Nanning, the People's Republic of China
| | - Ting Xie
- School of Materials and Environment, Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi University for Nationalities, Nanning, the People's Republic of China
| | - Yilin Wang
- School of Resources, Environment and Materials Guangxi University, Nanning, the People's Republic of China
| | - Shun Tan
- School of Resources, Environment and Materials Guangxi University, Nanning, the People's Republic of China
| | - Zuyi Lu
- School of Resources, Environment and Materials Guangxi University, Nanning, the People's Republic of China
| | - Lujie Wang
- School of Resources, Environment and Materials Guangxi University, Nanning, the People's Republic of China
| | - Chuangrong Mo
- School of Resources, Environment and Materials Guangxi University, Nanning, the People's Republic of China
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16
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Shahid A, Siddiqui AJ, Musharraf SG, Liu CG, Malik S, Syafiuddin A, Boopathy R, Tarbiah NI, Gull M, Mehmood MA. Untargeted metabolomics of the alkaliphilic cyanobacterium Plectonema terebrans elucidated novel stress-responsive metabolic modulations. J Proteomics 2022; 252:104447. [PMID: 34890867 DOI: 10.1016/j.jprot.2021.104447] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 11/20/2021] [Accepted: 11/25/2021] [Indexed: 02/06/2023]
Abstract
Alkaliphilic cyanobacteria are suitable candidates to study the effect of alkaline wastewater cultivation on molecular metabolic responses. In the present study, the impact of wastewater, alkalinity, and alkaline wastewater cultivation was studied on the biomass production, biochemical composition, and the alkalinity responsive molecular mechanism through metabolomics. The results suggested a 1.29 to 1.44-fold higher biomass production along with improved lipid, carbohydrate, and pigment production under alkaline wastewater cultivation. The metabolomics analysis showed 1.2-fold and 5.54-fold increase in the indole-acetic acid and phytoene biosynthesis which contributed to overall enhanced cell differentiation and photo-protectiveness. Furthermore, lower levels of Ribulose-1,5-bisphosphate (RuBP), and higher levels of 2-phosphoglycerate and 3-phosphoglycerate suggested the efficient fixation of CO2 into biomass, and storage compounds including polysaccharides, lipids, and sterols. Interestingly, except L-histidine and L-phenylalanine, all the metabolites related to protein biosynthesis were downregulated in response to wastewater and alkaline wastewater cultivation. The cells protected themselves from alkalinity and nutrient stress by improving the biosynthesis of sterols, non-toxic antioxidants, and osmo-protectants. Alkaline wastewater cultivation regulated the activation of carbon concentration mechanism (CCM), glycolysis, fatty-acid biosynthesis, and shikimate pathway. The data revealed the importance of alkaline wastewater cultivation for improved CO2 fixation, wastewater treatment, and producing valuable bioproducts including phytoene, Lyso PC 18:0, and sterols. These metabolic pathways could be future targets of metabolic engineering for improving biomass and metabolite production. SIGNIFICANCE: Alkalinity is an imperative factor, responsible for the contamination control and biochemical regulation in cyanobactera, especially during the wastewater cultivation. Currently, understanding of alkaline wastewater responsive molecular mechanism is lacking and most of the studies are focused on transcriptomics of model organisms for this purpose. In this study, untargeted metabolomics was employed to analyze the impact of wastewater and alkaline wastewater on the growth, CO2 assimilation, nutrient uptake, and associated metabolic modulations of the alkaliphilic cyanobacterium Plectonema terebrans BERC10. Results unveiled that alkaline wastewater cultivation regulated the activation of carbon concentration mechanism (CCM), glycolysis, fatty-acid biosynthesis, and shikimate pathway. It indicated the feasibility of alkaline wastewater as promising low-cost media for cyanobacterium cultivation. The identified stress-responsive pathways could be future genetic targets for strain improvement.
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Affiliation(s)
- Ayesha Shahid
- Department of Bioinformatics and Biotechnology, Government College University Faisalabad, Faisalabad 38000, Pakistan
| | - Amna Jabbar Siddiqui
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Syed Ghulam Musharraf
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Chen-Guang Liu
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China.
| | - Sana Malik
- Department of Bioinformatics and Biotechnology, Government College University Faisalabad, Faisalabad 38000, Pakistan
| | - Achmad Syafiuddin
- Department of Public Health, Universitas Nahdlatul Ulama Surabaya, 60237 Surabaya, East Java, Indonesia
| | - Raj Boopathy
- Department of Biological Sciences, Nicholls State University, Thibodaux, LA 70310, USA
| | | | - Munazza Gull
- Biochemistry Department, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Muhammad Aamer Mehmood
- School of Bioengineering, Sichuan University of Science and Engineering, Zigong, China; Department of Bioinformatics and Biotechnology, Government College University Faisalabad, Faisalabad 38000, Pakistan.
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17
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Growth Performance, Biochemical Composition and Nutrient Recovery Ability of Twelve Microalgae Consortia Isolated from Various Local Organic Wastes Grown on Nano-Filtered Pig Slurry. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27020422. [PMID: 35056737 PMCID: PMC8781922 DOI: 10.3390/molecules27020422] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 01/07/2022] [Accepted: 01/08/2022] [Indexed: 11/17/2022]
Abstract
This paper demonstrated the growth ability of twelve algae-microbial consortia (AC) isolated from organic wastes when a pig slurry-derived wastewater (NFP) was used as growth substrate in autotrophic cultivation. Nutrient recovery, biochemical composition, fatty acid and amino acid profiles of algae consortia were evaluated and compared. Three algae-microbial consortia, i.e., a Chlorella-dominated consortium (AC_1), a Tetradesmus and Synechocystis co-dominated consortium (AC_10), and a Chlorella and Tetradesmus co-dominated consortium (AC_12) were found to have the best growth rates (µ of 0.55 ± 0.04, 0.52 ± 0.06, and 0.58 ± 0.03 d−1, respectively), which made them good candidates for further applications. The ACs showed high carbohydrates and lipid contents but low contents of both proteins and essential amino acids, probably because of the low N concentration of NFP. AC_1 and AC_12 showed optimal ω6:ω3 ratios of 3.1 and 3.6, which make them interesting from a nutritional point of view.
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18
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OUP accepted manuscript. FEMS Microbiol Rev 2022; 46:6585976. [DOI: 10.1093/femsre/fuac020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 05/05/2022] [Accepted: 05/06/2022] [Indexed: 11/13/2022] Open
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19
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Arora N, Philippidis GP. Unraveling metabolic alterations in Chlorella vulgaris cultivated on renewable sugars using time resolved multi-omics. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 800:149504. [PMID: 34426316 DOI: 10.1016/j.scitotenv.2021.149504] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 08/02/2021] [Accepted: 08/03/2021] [Indexed: 06/13/2023]
Abstract
The inherent metabolic versatility of Chlorella vulgaris that enables it to metabolize both inorganic and organic carbon under various trophic modes of cultivation makes it a promising candidate for industrial applications. To shed light on the metabolic flexibility of this microalga, time resolved proteomic and metabolomic studies were conducted in three distinct trophic modes (autotrophic, heterotrophic, mixotrophic) at two growth stages (end of linear growth at 6 days and during nutrient deprivation at 10 days). Sweet sorghum bagasse (SSB) hydrolysate was supplied to the cultivation medium as a renewable source of organic carbon mainly in the form of glucose. Integrated multi-omics data showed improved nitrogen assimilation, re-allocation, and recycling and increased levels of photosystem II (PS II) proteins indicating effective cellular quenching of excess electrons during mixotrophy. As external addition of organic carbon (glucose) to the cultivation medium decreases the cell's dependence on photosynthesis, an upregulation in the mitochondrial electron transport chain was recorded that led to increased cellular energy generation and hence higher growth rates under mixotrophy. Moreover, upregulation of the lipid-packaging proteins caleosin and 14_3_3 domain-containing protein resulted in maximum expression during mixotrophy suggesting a strong correlation between lipid synthesis, stabilization, and assembly. Overall, cells cultivated under mixotrophy showed better nutrient stress tolerance and redox balancing leading to higher biomass and lipid production. The study offers a panoramic view of the microalga's metabolic flexibility and contributes to a deeper understanding of the altered biochemical pathways that can be exploited to enhance algal productivity and commercial potential.
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Affiliation(s)
- Neha Arora
- Patel College of Global Sustainability, University of South Florida, 4202 E. Fowler Avenue, Tampa, FL 33620, USA.
| | - George P Philippidis
- Patel College of Global Sustainability, University of South Florida, 4202 E. Fowler Avenue, Tampa, FL 33620, USA.
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20
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Mu R, Jia Y, Ma G, Liu L, Hao K, Qi F, Shao Y. Advances in the use of microalgal-bacterial consortia for wastewater treatment: Community structures, interactions, economic resource reclamation, and study techniques. WATER ENVIRONMENT RESEARCH : A RESEARCH PUBLICATION OF THE WATER ENVIRONMENT FEDERATION 2021; 93:1217-1230. [PMID: 33305497 DOI: 10.1002/wer.1496] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 11/12/2020] [Accepted: 12/06/2020] [Indexed: 06/12/2023]
Abstract
The rise in living standards has generated a demand for higher aquatic environmental quality. The microalgal community and the surrounding organic molecules, environmental factors, and microorganisms, such as bacteria, are together defined as the phycosphere. The bacteria in the phycosphere can form consortia with microalgae through various forms of interaction. The study of the species in these consortia and their relative proportions is of great significance in determining the species and strains of stable algae that can be used in sewage treatment. This article summarizes the following topics: the interactions between microalgae and bacteria that are required to establish consortia; how symbiosis between algae and bacteria is established; microalgal competition with bacteria through inhibition and anti-inhibition strategies; the influence of environmental factors on microalgal-bacterial aggregates, such as illumination conditions, pH, dissolved oxygen, temperature, and nutrient levels; the application of algal-bacterial aggregates to enhance biomass production and nutrient reuse; and techniques for studying the community structure and interactions of algal-bacterial consortia, such as microscopy, flow cytometry, and omics. PRACTITIONER POINTS: Community structures in microalgal-bacterial consortia in wastewater treatment. Interactions between algae and bacteria in wastewater treatment. Effects of ecological factors on the algal-bacterial community in wastewater treatment. Economically recycling resources from algal-bacterial consortia based on wastewater. Technologies for studying microalgal-bacterial consortia in wastewater treatment.
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Affiliation(s)
- Ruimin Mu
- School of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan, China
| | - Yantian Jia
- School of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan, China
| | - Guixia Ma
- School of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan, China
| | | | - Kaixuan Hao
- School of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan, China
| | - Feng Qi
- School of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan, China
| | - Yuanyuan Shao
- School of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan, China
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21
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Correa-Galeote D, Roibás A, Mosquera-Corral A, Juárez-Jiménez B, González-López J, Rodelas B. Salinity is the major driver of the global eukaryotic community structure in fish-canning wastewater treatment plants. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 290:112623. [PMID: 33901822 DOI: 10.1016/j.jenvman.2021.112623] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 04/05/2021] [Accepted: 04/11/2021] [Indexed: 06/12/2023]
Abstract
Fish-canning wastewater is characterized frequently by a high content of salt (NaCl), making its treatment particularly difficult; however, the knowledge of the effect of NaCl on eukaryotic communities is very limited. In the present study, the global diversity of eukaryotes in activated sludges (AS) from 4 different wastewater treatment plants (WWTPs) treating fish-canning effluents varying in salinity (0.47, 1.36, 1.72 and 12.76 g NaCl/L) was determined by sequencing partial 18S rRNA genes using Illumina MiSeq. A greater diversity than previously reported was observed in the AS community, which comprised 37 and 330 phylum-like and genera-like groups, respectively. In this sense, the more abundant genus-like groups (average relative abundance (RA) > 5%) were Adineta (6.80%), Lecane (16.80%), Dictyostelium (7.36%), Unclassified_Fungi7 (6.94%), Procryptobia (5.13) and Oocystis (5.07%). The eukaryotic communities shared a common core of 25 phylum-like clades (95% of total sequences); therefore, a narrow selection of the eukaryotic populations was found, despite the differences in the abiotic characteristics of fish-canning effluents and reactor operational conditions inflicted. The differences in NaCl concentration were the main factor that influenced the structure of the eukaryotic community, modulating the RAs of the different phylum-like clades of the common core. Higher levels of salt increased the RAs of Ascomycota, Chlorophyta, Choanoflagellata, Cryptophyta, Mollusca, Nematoda, Other Protists and Unclassified Fungi. Among the different eukaryotic genera here found, the RA of Oocystis (Chlorophyta) was intimately correlated to increasing NaCl concentrations and it is proposed as a bioindicator of the global eukaryotic community of fish-canning WWTPs.
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Affiliation(s)
- David Correa-Galeote
- Universidad de Granada. Facultad de Farmacia. Dpto. de Microbiología, Spain; Universidad de Granada. Instituto del Agua. Sección Microbiología y Tecnologías Ambientales, Spain.
| | - Alba Roibás
- Universidade de Santiago de Compostela. Escuela de Ingeniería. Dpto. de Ingeniería Química, Spain
| | - Anuska Mosquera-Corral
- Universidade de Santiago de Compostela. Escuela de Ingeniería. Dpto. de Ingeniería Química, Spain
| | - Belén Juárez-Jiménez
- Universidad de Granada. Facultad de Farmacia. Dpto. de Microbiología, Spain; Universidad de Granada. Instituto del Agua. Sección Microbiología y Tecnologías Ambientales, Spain
| | - Jesús González-López
- Universidad de Granada. Facultad de Farmacia. Dpto. de Microbiología, Spain; Universidad de Granada. Instituto del Agua. Sección Microbiología y Tecnologías Ambientales, Spain
| | - Belén Rodelas
- Universidad de Granada. Facultad de Farmacia. Dpto. de Microbiología, Spain; Universidad de Granada. Instituto del Agua. Sección Microbiología y Tecnologías Ambientales, Spain
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22
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Chorazyczewski AM, Huang IS, Abdulla H, Mayali X, Zimba PV. The Influence of Bacteria on the Growth, Lipid Production, and Extracellular Metabolite Accumulation by Phaeodactylum tricornutum (Bacillariophyceae). JOURNAL OF PHYCOLOGY 2021; 57:931-940. [PMID: 33454979 DOI: 10.1111/jpy.13132] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 11/18/2020] [Accepted: 12/21/2020] [Indexed: 06/12/2023]
Abstract
To examine the impact of heterotrophic bacteria on microalgal physiology, we co-cultured the diatom Phaeodactylum tricornutum with six bacterial strains to quantify bacteria-mediated differences in algal biomass, total intracellular lipids, and for a subset, extracellular metabolite accumulation. A Marinobacter isolate significantly increased algal cell concentrations, dry biomass, and lipid content compared to axenic algal cultures. Two other bacterial strains from the Bacteroidetes order, of the genera Algoriphagus and Muricauda, significantly lowered P. tricornutum biomass, leading to overall decreased lipid accumulation. These three bacterial co-cultures (one mutualistic, two competitive) were analyzed for extracellular metabolites via untargeted liquid chromatography mass spectrometry to compare against bacteria-free cultures. Over 80% of the extracellular metabolites differentially abundant in at least one treatment were in higher concentrations in the axenic cultures, in agreement with the hypothesis that the co-cultured bacteria incorporated algal-derived organic compounds for growth. Furthermore, the extracellular metabolite profiles of the two growth-inhibiting cultures were more similar to one another than the growth-promoting co-culture, linking metabolite patterns to ecological role. Our results show that algal-bacterial interactions can influence the accumulation of intracellular lipids and extracellular metabolites, and suggest that utilization and accumulation of compounds outside the cell play a role in regulating microbial interactions.
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Affiliation(s)
- Adam M Chorazyczewski
- Center for Coastal Studies, Texas A&M-Corpus Christi University, 6300 Ocean Dr, Corpus Christi, Texas, 78412, USA
| | - I-Shuo Huang
- Center for Coastal Studies, Texas A&M-Corpus Christi University, 6300 Ocean Dr, Corpus Christi, Texas, 78412, USA
| | - Hussain Abdulla
- Physical and Environmental Sciences, Texas A&M-Corpus Christi University, 6300 Ocean Dr., Corpus Christi, Texas, 78412, USA
| | - Xavier Mayali
- Nuclear and Chemical Sciences Division, Lawrence Livermore National Laboratory, 7000 East Ave., Livermore, California, 94550, USA
| | - Paul V Zimba
- Center for Coastal Studies, Texas A&M-Corpus Christi University, 6300 Ocean Dr, Corpus Christi, Texas, 78412, USA
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You X, Xu N, Yang X, Sun W. Pollutants affect algae-bacteria interactions: A critical review. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 276:116723. [PMID: 33611207 DOI: 10.1016/j.envpol.2021.116723] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Revised: 02/05/2021] [Accepted: 02/08/2021] [Indexed: 06/12/2023]
Abstract
With increasing concerns on the ecological risks of pollutants, many efforts have been devoted to revealing the toxic effects of pollutants on algae or bacteria in their monocultures. However, how pollutants affect algae and bacteria in their cocultures is still elusive but crucial due to its more environmental relevance. The present review outlines the interactions between algae and bacteria, reveals the influential mechanisms of pollutants (including pesticides, metals, engineered nanomaterials, pharmaceutical and personal care products, and aromatic pollutants) to algae and bacteria in their coexisted systems, and puts forward prospects for further advancing toxic studies in algal-bacterial systems. Pollutants affect the physiological and ecological functions of bacteria and algae by interfering with their relationships. Cell-to-cell adhesion, substrate exchange and biodegradation of organic pollutants, enhancement of signal transduction, and horizontal transfer of tolerance genes are important defense strategies in algal-bacterial systems to cope with pollution stress. Developing suitable algal-bacterial models, identifying cross-kingdom signaling molecules, and deciphering the horizontal transfer of pollutant resistant genes between algae and bacteria under pollution stress are the way forward to fully exploit the risks of pollutants in natural aquatic environments.
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Affiliation(s)
- Xiuqi You
- College of Environmental Sciences and Engineering, Peking University, State Environmental Protection Key Laboratory of All Material Fluxes in River Ecosystems, The Key Laboratory of Water and Sediment Sciences, Ministry of Education, International Joint Laboratory for Regional Pollution Control, Ministry of Education, Beijing, 100871, China
| | - Nan Xu
- Shenzhen Key Laboratory for Heavy Metal Pollution Control and Reutilization, School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen, 518055, China
| | - Xi Yang
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining, 810016, China
| | - Weiling Sun
- College of Environmental Sciences and Engineering, Peking University, State Environmental Protection Key Laboratory of All Material Fluxes in River Ecosystems, The Key Laboratory of Water and Sediment Sciences, Ministry of Education, International Joint Laboratory for Regional Pollution Control, Ministry of Education, Beijing, 100871, China.
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Zhang H, Gong W, Jia B, Zeng W, Li G, Liang H. Nighttime aeration mode enhanced the microalgae-bacteria symbiosis (ABS) system stability and pollutants removal efficiencies. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 743:140607. [PMID: 32659554 DOI: 10.1016/j.scitotenv.2020.140607] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 04/03/2020] [Accepted: 06/27/2020] [Indexed: 06/11/2023]
Abstract
Utilizing external aeration to enhance the performance of microalgae-bacteria symbiosis (ABS) system has been extensively studied. However, inappropriate aeration damaged ABS system stability. A nighttime aeration mode (NA-ABS) in different aeration intensities (20, 50, 100 mL/min) was adopted to compare to continuous aeration microalgae-bacteria symbiosis (CA-ABS) mode and no-aerated mode on pollutants removal efficiencies and system stability. Results showed that NA-ABS system performed better on total organic carbon (TOC), NH4+-N, total nitrogen (TN) and PO43- removal than CA-ABS system, especially under the aeration intensity of 20 mL/min (NAI20), with the removal efficiencies of 96.59%, 99.18%, 90.30% and 89.16%, respectively. These results were because NA-ABS system prevented CO2 stripping and provided more dissolved inorganic carbon (DIC) for the microalgae growth. Furthermore, less CO2 stripping released the competition between microalgae and autotrophic bacteria for the DIC, leading to a more stable ABS system during long-term operation. This paper suggested that NA-ABS system would provide some new insights into ABS system and be helpful for further study.
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Affiliation(s)
- Han Zhang
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), Harbin Institute of Technology, 73 Huanghe Road, Nangang District, Harbin 150090, PR China
| | - Weijia Gong
- School of Engineering, Northeast Agricultural University, 600 Changjiang Street, Xiangfang District, Harbin 150030, PR China
| | - Baohui Jia
- Department of Civil Engineering, The University of British Columbia, 6250 Applied Science Lane, Vancouver, BC V6T 1Z4, Canada
| | - Weichen Zeng
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), Harbin Institute of Technology, 73 Huanghe Road, Nangang District, Harbin 150090, PR China
| | - Guibai Li
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), Harbin Institute of Technology, 73 Huanghe Road, Nangang District, Harbin 150090, PR China
| | - Heng Liang
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), Harbin Institute of Technology, 73 Huanghe Road, Nangang District, Harbin 150090, PR China.
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Wu Y, Wang T, Xin Y, Wang G, Xu LA. Overexpression of GbF3'5'H1 Provides a Potential to Improve the Content of Epicatechin and Gallocatechin. Molecules 2020; 25:molecules25204836. [PMID: 33092253 PMCID: PMC7594021 DOI: 10.3390/molecules25204836] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 10/15/2020] [Accepted: 10/16/2020] [Indexed: 12/30/2022] Open
Abstract
The flavonoids in Ginkgo biloba L. (ginkgo) have important medicinal uses due to their antioxidant, antitumor, and blood circulation-promoting effects. However, the genetic mechanisms underlying flavonoid biosynthesis in ginkgo remain elusive. Flavonoid 3′, 5′-hydroxylase (F3′5′H) is an important enzyme in flavonoid synthesis. We detected a novel differentially expressed GbF3′5′H1 gene homologous to the F3′5′H enzyme involved in the flavonoid synthesis pathway through transcriptome sequencing. In this study, we characterized this gene, performed an expression analysis, and heterologously overexpressed GbF3′5′H1 in Populus. Our results showed that GbF3′5′H1 is abundant in the leaf and highly expressed during April. We also found four metabolites closely related to flavonoid biosynthesis. Importantly, the contents of 4′,5-dihydroxy-7-glucosyloxyflavanone, epicatechin, and gallocatechin were significantly higher in transgenic plants than in nontransgenic plants. Our findings revealed that the GbF3′5′H1 gene functions in the biosynthesis of flavonoid-related metabolites, suggesting that GbF3′5′H1 represents a prime candidate for future studies (e.g., gene-editing) aiming to optimize ginkgo flavonoid production, especially that of flavan-3-ols.
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Affiliation(s)
- Yaqiong Wu
- Co-Innovation Center for the Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, 159 Longpan Road, Nanjing 210037, China; (Y.W.); (Y.X.); (G.W.)
- Research Center for Pomology, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Qian Hu Hou Cun No.1, Nanjing 210014, China
- Department of Forest and Conservation Sciences, Faculty of Forestry, University of British Columbia, Vancouver, BC V6T 1Z4, Canada;
| | - Tongli Wang
- Department of Forest and Conservation Sciences, Faculty of Forestry, University of British Columbia, Vancouver, BC V6T 1Z4, Canada;
| | - Yue Xin
- Co-Innovation Center for the Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, 159 Longpan Road, Nanjing 210037, China; (Y.W.); (Y.X.); (G.W.)
| | - Guibin Wang
- Co-Innovation Center for the Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, 159 Longpan Road, Nanjing 210037, China; (Y.W.); (Y.X.); (G.W.)
| | - Li-An Xu
- Co-Innovation Center for the Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, 159 Longpan Road, Nanjing 210037, China; (Y.W.); (Y.X.); (G.W.)
- Correspondence: ; Tel.: +86-25-8542-7882
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Wang Y, Wang S, Sun L, Sun Z, Li D. Screening of a Chlorella-bacteria consortium and research on piggery wastewater purification. ALGAL RES 2020. [DOI: 10.1016/j.algal.2020.101840] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Wu Y, Wang T, Xin Y, Wang G, Xu LA. Overexpression of the GbF3' H1 Gene Enhanced the Epigallocatechin, Gallocatechin, and Catechin Contents in Transgenic Populus. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:998-1006. [PMID: 31910001 DOI: 10.1021/acs.jafc.9b07008] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Ginkgo biloba L. leaves are a flavonoid resource for the pharmaceutical industry. The flavonoid 3'-hydroxylase (F3'H) is a key enzyme in the flavonoid biosynthesis pathway. However, the role of F3'H in flavonoid biosynthesis and metabolism is unclear. In this study, we characterized and functionally analyzed the ginkgo F3'H gene GbF3'H1 that encodes a protein of 520 amino acids. Expression profiling showed that GbF3'H1 was highly expressed in the leaves of ginkgo in September. Subcellular localization showed that GbF3'H1 occurred predominately in the cytoplasm. Transgenic poplars overexpressing GbF3'H1 had more red pigmentation in leaves than did wild-type (WT) plants. Furthermore, the concentrations of epigallocatechin, gallocatechin, and catechin in the downstream products synthesized by flavonoids were significantly higher in the transgenic plants than in the WT plants. These results indicate that the overexpression of GbF3'H1 enhances flavonoid production in transgenic plants and provides new insights into flavonoid biosynthesis and metabolism.
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Affiliation(s)
- Yaqiong Wu
- Co-Innovation Center for Sustainable Forestry in Southern China , Nanjing Forestry University , 159 Longpan Road , Nanjing 210037 , China
- Department of Forest and Conservation Sciences, Faculty of Forestry , The University of British Columbia , Vancouver V6T 1Z4 , Canada
| | - Tongli Wang
- Department of Forest and Conservation Sciences, Faculty of Forestry , The University of British Columbia , Vancouver V6T 1Z4 , Canada
| | - Yue Xin
- Co-Innovation Center for Sustainable Forestry in Southern China , Nanjing Forestry University , 159 Longpan Road , Nanjing 210037 , China
| | - Guibin Wang
- Co-Innovation Center for Sustainable Forestry in Southern China , Nanjing Forestry University , 159 Longpan Road , Nanjing 210037 , China
| | - Li-An Xu
- Co-Innovation Center for Sustainable Forestry in Southern China , Nanjing Forestry University , 159 Longpan Road , Nanjing 210037 , China
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Gauthier L, Tison-Rosebery J, Morin S, Mazzella N. Metabolome response to anthropogenic contamination on microalgae: a review. Metabolomics 2019; 16:8. [PMID: 31863210 DOI: 10.1007/s11306-019-1628-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Accepted: 12/08/2019] [Indexed: 01/22/2023]
Abstract
BACKGROUND Microalgae play a key role in ecosystems and are widely used in ecological status assessment. Research focusing on such organisms is then well developed and essential. Anyway, approaches for a better comprehension of their metabolome's response towards anthropogenic stressors are only emerging. AIM OF REVIEW This review presents the biochemical responses of various microalgae species towards several contaminants including metals and chemicals as pesticides or industrial compounds. We aim to provide a comprehensive and up-to-date overview of analytical approaches deciphering anthropogenic contaminants impact on microalgae metabolome dynamics, in order to bring out relevant biochemical markers that could be used for risk assessment. KEY SCIENTIFIC CONCEPTS OF REVIEW Studies to date on ecotoxicological metabolomics on microalgae are highly heterogeneous in both analytical techniques and resulting metabolite identification. There is a real need for studies using complementary approaches to determine biomarkers usable for ecological risk assessment.
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Affiliation(s)
- Léa Gauthier
- IRSTEA, UR EABX, 50 Avenue de Verdun, 33612, Cestas Cedex, France.
| | | | - Soizic Morin
- IRSTEA, UR EABX, 50 Avenue de Verdun, 33612, Cestas Cedex, France
| | - Nicolas Mazzella
- IRSTEA, UR EABX, 50 Avenue de Verdun, 33612, Cestas Cedex, France
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Mishra A, Medhi K, Malaviya P, Thakur IS. Omics approaches for microalgal applications: Prospects and challenges. BIORESOURCE TECHNOLOGY 2019; 291:121890. [PMID: 31378447 DOI: 10.1016/j.biortech.2019.121890] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 07/23/2019] [Accepted: 07/24/2019] [Indexed: 06/10/2023]
Abstract
In recent impetus of phycological research, microalgae have emerged as a potential candidate for various arena of application-driven research. Omics-based tactics are used for disentangling the regulation and network integration for biosynthesis/degradation of metabolic precursors, intermediates, end products, and identifying the networks that regulate the metabolic flux. Multi-omics coupled with data analytics have facilitated understanding of biological processes and allow ample access to diverse metabolic pathways utilized for genetic manipulations making microalgal factories more efficient. The present review discusses state-of-art "Algomics" and the prospect of microalgae and their role in symbiotic association by using omics approaches including genomics, transcriptomics, proteomics and metabolomics. Microalgal based uni- and multi-omics approaches are critically analyzed in wastewater treatment, metal toxicity and remediation, biofuel production, and therapeutics to provide an imminent outlook for an array of environmentally sustainable and economically viable microalgal applications.
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Affiliation(s)
- Arti Mishra
- School of Environmental Sciences, Jawaharlal Nehru University, New Delhi, India
| | - Kristina Medhi
- School of Environmental Sciences, Jawaharlal Nehru University, New Delhi, India
| | - Piyush Malaviya
- Department of Environmental Science, University of Jammu, Jammu (J&K), India
| | - Indu Shekhar Thakur
- School of Environmental Sciences, Jawaharlal Nehru University, New Delhi, India.
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Goswami G, Makut BB, Das D. Sustainable production of bio-crude oil via hydrothermal liquefaction of symbiotically grown biomass of microalgae-bacteria coupled with effective wastewater treatment. Sci Rep 2019; 9:15016. [PMID: 31628372 PMCID: PMC6802377 DOI: 10.1038/s41598-019-51315-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 09/29/2019] [Indexed: 01/26/2023] Open
Abstract
The study demonstrates a sustainable process for production of bio-crude oil via hydrothermal liquefaction of microbial biomass generated through co-cultivation of microalgae and bacteria coupled with wastewater remediation. Biomass concentration and wastewater treatment efficiency of a tertiary consortium (two microalgae and two bacteria) was evaluated on four different wastewater samples. Total biomass concentration, total nitrogen and COD removal efficiency was found to be 3.17 g L−1, 99.95% and 95.16% respectively when consortium was grown using paper industry wastewater in a photobioreactor under batch mode. Biomass concentration was enhanced to 4.1 g L−1 through intermittent feeding of nitrogen source and phosphate. GC-MS and FTIR analysis of bio-crude oil indicates abundance of the hydrocarbon fraction and in turn, better oil quality. Maximum distillate fraction of 30.62% lies within the boiling point range of 200–300 °C depicting suitability of the bio-crude oil for conversion into diesel oil, jet fuel and fuel for stoves.
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Affiliation(s)
- Gargi Goswami
- Department of Biosciences & Bioengineering, Indian Institute of Technology, Guwahati, Assam, 781039, India
| | - Bidhu Bhusan Makut
- Center for Energy, Indian Institute of Technology, Guwahati, Assam, 781039, India
| | - Debasish Das
- Department of Biosciences & Bioengineering, Indian Institute of Technology, Guwahati, Assam, 781039, India. .,Center for Energy, Indian Institute of Technology, Guwahati, Assam, 781039, India.
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Fast non-invasive monitoring of microalgal physiological stage in photobioreactors through Raman spectroscopy. ALGAL RES 2019. [DOI: 10.1016/j.algal.2019.101595] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Dong F, Hu J, Shi Y, Liu M, Zhang Q, Ruan J. Effects of nitrogen supply on flavonol glycoside biosynthesis and accumulation in tea leaves (Camellia sinensis). PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2019; 138:48-57. [PMID: 30849677 DOI: 10.1016/j.plaphy.2019.02.017] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2018] [Revised: 02/09/2019] [Accepted: 02/18/2019] [Indexed: 06/09/2023]
Abstract
Widely distributed in tea plants, the flavonoid flavonol and its glycosylated derivatives have important roles in determining tea quality. However, the biosynthesis and accumulation of these compounds has not been fully studied, especially in response to nitrogen (N) supply. In the present study, 'Longjing 43' potted tea seedlings were subjected to N deficiency (0g/pot), normal N (4g/pot) or excess N (16g/pot). Quantitative analyses using Ultra Performance Liquid Chromatography-Triple Quadrupole Mass Spectrometry (UPLC-QqQ-MS/MS) revealed that most flavonol glycosides (e.g., Quercetin-3-glucoside, Kaempferol-3-rgalactoside and Kaempferol-3-glucosyl-rhamnsoyl-glucoside) accumulated to the highest levels when treated with normal N. Results from metabolomics using Gas Chromatography-Mass Spectrometer (GC-MS) suggested that the levels of carbohydrate substrates of flavonol glycosides (e.g., sucrose, sucrose-6-phosphate, D-fructose 1,6-bisphosphate and glucose-1-phosphate) were positively correlated with flavonol glycoside content in response to N availability. Furthermore, Quantitative Real-time PCR analysis of 28 genes confirmed that genes related to flavonoid (e.g., flavonol synthase 1, flavonol 3-O-galactosyltransferase) and carbohydrate (e.g., sucrose phosphate synthase, sucrose synthase and glucokinase) metabolism have important roles in regulating the biosynthesis and accumulation of flavonol glycosides. Collectively, our results suggest that normal N levels promote the biosynthesis of flavonol glycosides through gene regulation and the accumulation of substrate carbohydrates, while abnormal N availability has inhibitory effects, especially excess N.
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Affiliation(s)
- Fang Dong
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Key Laboratory for Plant Biology and Resource Application of Tea, The Ministry of Agriculture, Hangzhou, 310008, China
| | - Jianhui Hu
- College of Horticulture, Qingdao Agricultural University, Qingdao Key Laboratory of Genetic Improvement and Breeding in Horticultural Plants, Qingdao, China
| | - Yuanzhi Shi
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Key Laboratory for Plant Biology and Resource Application of Tea, The Ministry of Agriculture, Hangzhou, 310008, China
| | - Meiya Liu
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Key Laboratory for Plant Biology and Resource Application of Tea, The Ministry of Agriculture, Hangzhou, 310008, China
| | - Qunfeng Zhang
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Key Laboratory for Plant Biology and Resource Application of Tea, The Ministry of Agriculture, Hangzhou, 310008, China.
| | - Jianyun Ruan
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Key Laboratory for Plant Biology and Resource Application of Tea, The Ministry of Agriculture, Hangzhou, 310008, China
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Perera IA, Abinandan S, Subashchandrabose SR, Venkateswarlu K, Naidu R, Megharaj M. Advances in the technologies for studying consortia of bacteria and cyanobacteria/microalgae in wastewaters. Crit Rev Biotechnol 2019; 39:709-731. [PMID: 30971144 DOI: 10.1080/07388551.2019.1597828] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The excessive generation and discharge of wastewaters have been serious concerns worldwide in the recent past. From an environmental friendly perspective, bacteria, cyanobacteria and microalgae, and the consortia have been largely considered for biological treatment of wastewaters. For efficient use of bacteria‒cyanobacteria/microalgae consortia in wastewater treatment, detailed knowledge on their structure, behavior and interaction is essential. In this direction, specific analytical tools and techniques play a significant role in studying these consortia. This review presents a critical perspective on physical, biochemical and molecular techniques such as microscopy, flow cytometry with cell sorting, nanoSIMS and omics approaches used for systematic investigations of the structure and function, particularly nutrient removal potential of bacteria‒cyanobacteria/microalgae consortia. In particular, the use of specific molecular techniques of genomics, transcriptomics, proteomics metabolomics and genetic engineering to develop more stable consortia of bacteria and cyanobacteria/microalgae with their improved biotechnological capabilities in wastewater treatment has been highlighted.
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Affiliation(s)
- Isiri Adhiwarie Perera
- a Global Centre for Environmental Remediation (GCER), Faculty of Science , The University of Newcastle , Callaghan , New South Wales , Australia
| | - Sudharsanam Abinandan
- a Global Centre for Environmental Remediation (GCER), Faculty of Science , The University of Newcastle , Callaghan , New South Wales , Australia
| | - Suresh R Subashchandrabose
- a Global Centre for Environmental Remediation (GCER), Faculty of Science , The University of Newcastle , Callaghan , New South Wales , Australia.,b Cooperative Research Centre for Contamination Assessment and Remediation of Environment (CRC CARE) , The University of Newcastle , Callaghan , New South Wales , Australia
| | - Kadiyala Venkateswarlu
- c Formerly Department of Microbiology , Sri Krishnadevaraya University , Anantapuramu , Andhra Pradesh , India
| | - Ravi Naidu
- a Global Centre for Environmental Remediation (GCER), Faculty of Science , The University of Newcastle , Callaghan , New South Wales , Australia.,b Cooperative Research Centre for Contamination Assessment and Remediation of Environment (CRC CARE) , The University of Newcastle , Callaghan , New South Wales , Australia
| | - Mallavarapu Megharaj
- a Global Centre for Environmental Remediation (GCER), Faculty of Science , The University of Newcastle , Callaghan , New South Wales , Australia.,b Cooperative Research Centre for Contamination Assessment and Remediation of Environment (CRC CARE) , The University of Newcastle , Callaghan , New South Wales , Australia
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Haruta S, Yamamoto K. Model Microbial Consortia as Tools for Understanding Complex Microbial Communities. Curr Genomics 2018; 19:723-733. [PMID: 30532651 PMCID: PMC6225455 DOI: 10.2174/1389202919666180911131206] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 07/19/2018] [Accepted: 09/03/2018] [Indexed: 02/08/2023] Open
Abstract
A major biological challenge in the postgenomic era has been untangling the composition and functions of microbes that inhabit complex communities or microbiomes. Multi-omics and modern bioinformatics have provided the tools to assay molecules across different cellular and community scales; however, mechanistic knowledge over microbial interactions often remains elusive. This is due to the immense diversity and the essentially undiminished volume of not-yet-cultured microbes. Simplified model communities hold some promise in enabling researchers to manage complexity so that they can mechanistically understand the emergent properties of microbial community interactions. In this review, we surveyed several approaches that have effectively used tractable model consortia to elucidate the complex behavior of microbial communities. We go further to provide some perspectives on the limitations and new opportunities with these approaches and highlight where these efforts are likely to lead as advances are made in molecular ecology and systems biology.
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Affiliation(s)
- Shin Haruta
- Address correspondence to this author at the Department of Biological Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan; Tel: +81-42-677-2580; Fax: +81-42-677-2559; E-mail:
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Bohutskyi P, Kucek LA, Hill E, Pinchuk GE, Mundree SG, Beliaev AS. Conversion of stranded waste-stream carbon and nutrients into value-added products via metabolically coupled binary heterotroph-photoautotroph system. BIORESOURCE TECHNOLOGY 2018; 260:68-75. [PMID: 29614453 DOI: 10.1016/j.biortech.2018.02.080] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Revised: 02/16/2018] [Accepted: 02/17/2018] [Indexed: 06/08/2023]
Abstract
Growth of heterotrophic bacterium Bacillus subtilis was metabolically coupled with the photosynthetic activity of an astaxanthin-producing alga Haematococcus pluvialis for conversion of starch-containing waste stream into carotenoid-enriched biomass. The H. pluvialis accounted for 63% of the produced co-culture biomass of 2.2 g/L. Importantly, the binary system requires neither exogenous supply of gaseous substrates nor application of energy-intensive mass transfer technologies due to in-situ exchange in CO2 and O2. The maximum reduction in COD, total nitrogen and phosphorus reached 65%, 55% and 30%, respectively. Conducted techno-economic assessment suggested that the astaxanthin-rich biomass may potentially offset the costs of waste treatment, and, with specific productivity enhancements (induction of astaxanthin to 2% and increase H. pluvialis fraction to 80%), provide and additional revenue stream. The outcome of this study demonstrates a successful proof-of-principle for conversion of waste carbon and nutrients into value-added products through metabolic coupling of heterotrophic and phototrophic metabolisms.
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Affiliation(s)
- Pavlo Bohutskyi
- Biological Sciences Division, Pacific Northwest National Laboratory, 3300 Stevens Dr., Richland, WA 99354, United States.
| | - Leo A Kucek
- Biological Sciences Division, Pacific Northwest National Laboratory, 3300 Stevens Dr., Richland, WA 99354, United States
| | - Eric Hill
- Biological Sciences Division, Pacific Northwest National Laboratory, 3300 Stevens Dr., Richland, WA 99354, United States
| | - Grigoriy E Pinchuk
- Biological Sciences Division, Pacific Northwest National Laboratory, 3300 Stevens Dr., Richland, WA 99354, United States
| | - Sagadevan G Mundree
- Institute for Future Environments, Queensland University of Technology, Brisbane, Australia; Center for Tropical Crops and Biocommodities, Queensland University of Technology, Brisbane, Australia
| | - Alexander S Beliaev
- Biological Sciences Division, Pacific Northwest National Laboratory, 3300 Stevens Dr., Richland, WA 99354, United States; Institute for Future Environments, Queensland University of Technology, Brisbane, Australia; Center for Tropical Crops and Biocommodities, Queensland University of Technology, Brisbane, Australia.
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Ye J, Liang J, Wang L, Markou G, Jia Q. Operation optimization of a photo-sequencing batch reactor for wastewater treatment: Study on influencing factors and impact on symbiotic microbial ecology. BIORESOURCE TECHNOLOGY 2018; 252:7-13. [PMID: 29306132 DOI: 10.1016/j.biortech.2017.12.086] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 12/19/2017] [Accepted: 12/25/2017] [Indexed: 06/07/2023]
Abstract
Wastewater treatment technology with better energy efficiency and recyclability is in urgent demand. Photo-Sequencing batch reactor (SBR), which introduces microalgae into conventional SBR, is considered to have more potential for resource recycling. In this study, a photo-SBR was evaluated through the manipulation of several key operational parameters, i.e., aeration strength, light supply intensity and time per cycle, and solid retention time (SRT). The algal-bacterial symbiotic system had the potential of removing COD, NH4+-N and TN with limited aeration, representing the advantage of energy-saving by low aeration requirement. Maintaining appropriate proportion of microalgae in the symbiotic system is critical for good system performance. Introducing microalgae into conventional SBR has obvious impact on the original microbial ecology. When the concentration of microalgae is too high (>4.60 mg Chl/L), the inhibition on certain phyla of bacteria, e.g., Bacteroidetes and Actinobacteria, would become prominent and not conducive to the stable operation.
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Affiliation(s)
- Jianfeng Ye
- Water Research Institute, Shanghai Academy of Environmental Sciences, 508 Qinzhou Rd, 200233 Shanghai, China
| | - Junyu Liang
- Water Research Institute, Shanghai Academy of Environmental Sciences, 508 Qinzhou Rd, 200233 Shanghai, China; School of Environmental Science and Engineering, Donghua University, 849 West Zhongshan Rd, 200336 Shanghai, China
| | - Liang Wang
- Water Research Institute, Shanghai Academy of Environmental Sciences, 508 Qinzhou Rd, 200233 Shanghai, China.
| | - Giorgos Markou
- School of Agricultural Production, Infrastructure and Environment, Agricultural University of Athens, Iera Odos 75, 11855 Athens, Greece
| | - Qilong Jia
- Water Research Institute, Shanghai Academy of Environmental Sciences, 508 Qinzhou Rd, 200233 Shanghai, China; School of Environmental Science and Engineering, Donghua University, 849 West Zhongshan Rd, 200336 Shanghai, China
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Yang L, Chen J, Qin S, Zeng M, Jiang Y, Hu L, Xiao P, Hao W, Hu Z, Lei A, Wang J. Growth and lipid accumulation by different nutrients in the microalga Chlamydomonas reinhardtii. BIOTECHNOLOGY FOR BIOFUELS 2018; 11:40. [PMID: 29456627 PMCID: PMC5809890 DOI: 10.1186/s13068-018-1041-z] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Accepted: 02/04/2018] [Indexed: 05/09/2023]
Abstract
BACKGROUND Individual nutrient depletion is widely used to induce lipid accumulation in microalgae, which also causes cell growth inhibition and decreases the total biomass. Thus, improving the lipid accumulation without biomass loss in the nutrient deficiency cells becomes a potential cost-effective treatment for cheaper biofuels. METHODS In this study, the effects of different nutritional conditions on the growth and contents of lipids in Chlamydomonas reinhardtii were compared, and the metabolic profiles under different nutritional conditions were also investigated. RESULTS We showed that similar to other microalgae, nitrogen or phosphorus deficiency inhibited the growth of Chlamydomonas and combined nutrition deficiency reduced biomass by up to 31.7%, though lipid contents in cells (g/g dry weight [DW]) were significantly increased. The addition of sodium acetate countered this growth inhibition that resulted from nitrogen and phosphorus deficiency, with significantly increased biomass. Furthermore, the combination of 4 g/L sodium acetate supplementation with nitrogen and phosphorous deficiency increased total fatty acid yield (mg/L) by 93.0 and 150.1% compared to nutrient-depleted and normal culture conditions, respectively. Metabolite content was affected by the different nutritional conditions, especially metabolites that are involved in lipid metabolism, amino acid metabolism and metabolism of external substances. CONCLUSION Further research into these metabolites could shed light onto the relationship between cell growth inhibition and fatty acid accumulation in Chlamydomonas.
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Affiliation(s)
- Lei Yang
- Shenzhen Key Laboratory of Marine Bioresource & Eco-environmental Science, Shenzhen Engineering Laboratory for Marine Algal Biotechnology, Guangdong Provincial Key Laboratory for Plant Epigenetics, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518060 Guangdong People’s Republic of China
| | - Jun Chen
- Shenzhen Key Laboratory of Marine Bioresource & Eco-environmental Science, Shenzhen Engineering Laboratory for Marine Algal Biotechnology, Guangdong Provincial Key Laboratory for Plant Epigenetics, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518060 Guangdong People’s Republic of China
| | - Shan Qin
- Shenzhen Key Laboratory of Marine Bioresource & Eco-environmental Science, Shenzhen Engineering Laboratory for Marine Algal Biotechnology, Guangdong Provincial Key Laboratory for Plant Epigenetics, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518060 Guangdong People’s Republic of China
| | - Min Zeng
- Shenzhen Key Laboratory of Marine Bioresource & Eco-environmental Science, Shenzhen Engineering Laboratory for Marine Algal Biotechnology, Guangdong Provincial Key Laboratory for Plant Epigenetics, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518060 Guangdong People’s Republic of China
| | - Yongguang Jiang
- Shenzhen Key Laboratory of Marine Bioresource & Eco-environmental Science, Shenzhen Engineering Laboratory for Marine Algal Biotechnology, Guangdong Provincial Key Laboratory for Plant Epigenetics, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518060 Guangdong People’s Republic of China
| | - Lang Hu
- Shenzhen Key Laboratory of Marine Bioresource & Eco-environmental Science, Shenzhen Engineering Laboratory for Marine Algal Biotechnology, Guangdong Provincial Key Laboratory for Plant Epigenetics, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518060 Guangdong People’s Republic of China
| | - Peng Xiao
- Shenzhen Key Laboratory of Marine Bioresource & Eco-environmental Science, Shenzhen Engineering Laboratory for Marine Algal Biotechnology, Guangdong Provincial Key Laboratory for Plant Epigenetics, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518060 Guangdong People’s Republic of China
| | - Wenlong Hao
- Shenzhen Key Laboratory of Marine Bioresource & Eco-environmental Science, Shenzhen Engineering Laboratory for Marine Algal Biotechnology, Guangdong Provincial Key Laboratory for Plant Epigenetics, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518060 Guangdong People’s Republic of China
| | - Zhangli Hu
- Shenzhen Key Laboratory of Marine Bioresource & Eco-environmental Science, Shenzhen Engineering Laboratory for Marine Algal Biotechnology, Guangdong Provincial Key Laboratory for Plant Epigenetics, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518060 Guangdong People’s Republic of China
| | - Anping Lei
- Shenzhen Key Laboratory of Marine Bioresource & Eco-environmental Science, Shenzhen Engineering Laboratory for Marine Algal Biotechnology, Guangdong Provincial Key Laboratory for Plant Epigenetics, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518060 Guangdong People’s Republic of China
| | - Jiangxin Wang
- Shenzhen Key Laboratory of Marine Bioresource & Eco-environmental Science, Shenzhen Engineering Laboratory for Marine Algal Biotechnology, Guangdong Provincial Key Laboratory for Plant Epigenetics, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518060 Guangdong People’s Republic of China
- Nanshan District Key Lab for Biopolymers and Safety Evaluation, College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060 Guangdong People’s Republic of China
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Shen Y, Gao J, Li L. Municipal wastewater treatment via co-immobilized microalgal-bacterial symbiosis: Microorganism growth and nutrients removal. BIORESOURCE TECHNOLOGY 2017; 243:905-913. [PMID: 28738545 DOI: 10.1016/j.biortech.2017.07.041] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2017] [Revised: 07/01/2017] [Accepted: 07/06/2017] [Indexed: 05/20/2023]
Abstract
A symbiotic microalgal-bacterial system may be an optional technology for wastewater treatment. In this study, co-immobilized of a bacterium isolated from a municipal wastewater treatment plant (Pseudomonas putida) and a microalgae Chlorella vulgaris was used in the study of cell growth and nutrient removal during wastewater treatment under batch and continuous culture conditions. Under batch culture conditions, co-immobilization treatment significantly increased the cell density of C. vulgaris and P. putida compared with other treatments. The co-immobilized treatment also showed higher removal of ammonium, phosphate and COD than any single treatment, indicating that the nutrient uptake capability of C. vulgaris and P. Putida was mutually enhanced mutually. When tested in continuous mode, the treatment with a hydraulic retention time of 24h at the organic load rate of 1159.2mgCODL-1d-1 was most appropriate for wastewater treatment.
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Affiliation(s)
- Yu Shen
- Research Institute of Environmental Sciences, College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Jingqing Gao
- School of Water Conservancy and Environment, Zhengzhou University, Zhengzhou 450001, China.
| | - Linshuai Li
- Zhengzhou University Multi-Functional Design and Research Academy Co, Zhengzhou 450001, China
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