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Guo W, Ren H, Jin Y, Chai Z, Liu B. The bioremediation of the typical persistent organic pollutants (POPs) by microalgae-bacteria consortia: A systematic review. CHEMOSPHERE 2024; 355:141852. [PMID: 38556179 DOI: 10.1016/j.chemosphere.2024.141852] [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: 01/16/2024] [Revised: 03/26/2024] [Accepted: 03/28/2024] [Indexed: 04/02/2024]
Abstract
With industrialisation and the rapidly growing agricultural demand, many organic compounds have been leaked into the environment, causing serious damage to the biosphere. Persistent organic pollutants (POPs) are a type of toxic chemicals that are resistant to degradation through normal chemical, biological or photolytic approaches. With their stable chemical structures, POPs can be accumulated in the environment, and transported through wind and water, causing global environmental issues. Many researches have been conducted to remediate POPs contamination using various kinds of biological methods, and significant results have been seen. Microalgae-bacteria consortium is a newly developed concept for biological technology in contamination treatment, with the synergetic effects between microalgae and bacteria, their potential for pollutants degradation can be further released. In this review, two types of POPs (polychlorinated biphenyls and polycyclic aromatic hydrocarbons) are selected as the targeted pollutants to give a systematic analysis of the biodegradation through microalgae and bacteria, including the species selection, the identification of dominant enzymes, as well as the real application performance of the consortia. In the end, some outlooks and suggestions are given to further guide the development of applying microalgae-bacteria consortia in remediating POPs contamination. In general, the coculturing of microalgae and bacteria is a novel and efficient way to fulfil the advanced treatment of POPs in soil or liquid phase, and both monooxygenase and dioxygenase belonging to oxygenase play a vital role in the biodegradation of PCBs and PAHs. This review provides a general guide in the future investigation of biological treatment of POPs.
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Affiliation(s)
- Wenbo Guo
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Hongyu Ren
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Yinzhu Jin
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Zetang Chai
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Bingfeng Liu
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China.
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2
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Geng Y, Xing R, Zhang H, Nan G, Chen L, Yu Z, Liu C, Li H. Inhibitory effect and mechanism of algicidal bacteria on Chaetomorpha valida. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 914:169850. [PMID: 38185176 DOI: 10.1016/j.scitotenv.2023.169850] [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: 10/02/2023] [Revised: 12/29/2023] [Accepted: 12/30/2023] [Indexed: 01/09/2024]
Abstract
Chaetomorpha valida, filamentous green tide algae, poses a significant threat to both aquatic ecosystems and aquaculture. Vibrio alginolyticus Y20 is a new algicidal bacterium with an algicidal effect on C. valida. This study aimed to investigate the physiological and molecular responses of C. valida to exposure to V. alginolyticus Y20. The inhibitory effect of V. alginolyticus Y20 on C. valida was content dependent, with the lowest inhibitory content being 3 × 105 CFU mL-1. The microscopic results revealed that C. valida experienced severe morphological damage under the influence of V. alginolyticus Y20, with a dispersion of intracellular pigments. V. alginolyticus Y20 caused the decrease in chlorophyll-a content and Fv/Fm in C. valida. At the molecular level, V. alginolyticus Y20 downregulated the expression of genes related to photosynthetic pigment synthesis, light capture, and electron transport. Furthermore, V. alginolyticus Y20 induced oxidative damage to algal cells. The production of reactive oxygen species significantly increased after 11 days of exposure. Malondialdehyde content significantly increased, and the cell membranes were severely damaged by lipid peroxidation. The content of superoxide dismutase and peroxidase also markedly increased, whereas catalase content decreased significantly. Additionally, peroxisomes were inhibited due to the downregulation of PEX expression, leading to irreversible oxidative damage to algal cells. Our findings provided a new theoretical basis for exploring the interaction between algicidal bacteria and green tide algae at the molecular level.
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Affiliation(s)
- Yaqi Geng
- College of Life Sciences, Yantai University, Yantai, Shandong 264005, China
| | - Ronglian Xing
- College of Life Sciences, Yantai University, Yantai, Shandong 264005, China.
| | - Hongxia Zhang
- College of Life Sciences, Yantai University, Yantai, Shandong 264005, China
| | - Guoning Nan
- College of Life Sciences, Yantai University, Yantai, Shandong 264005, China
| | - Lihong Chen
- College of Life Sciences, Yantai University, Yantai, Shandong 264005, China
| | - Zhen Yu
- College of Life Sciences, Yantai University, Yantai, Shandong 264005, China
| | - Chuyao Liu
- College of Life Sciences, Yantai University, Yantai, Shandong 264005, China
| | - Huili Li
- College of Life Sciences, Yantai University, Yantai, Shandong 264005, China
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Ali S, Baloch SB, Bernas J, Konvalina P, Onyebuchi EF, Naveed M, Ali H, Jamali ZH, Nezhad MTK, Mustafa A. Phytotoxicity of radionuclides: A review of sources, impacts and remediation strategies. ENVIRONMENTAL RESEARCH 2024; 240:117479. [PMID: 37884073 DOI: 10.1016/j.envres.2023.117479] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 10/01/2023] [Accepted: 10/22/2023] [Indexed: 10/28/2023]
Abstract
Various anthropogenic activities and natural sources contribute to the presence of radioactive materials in the environment, posing a serious threat to phytotoxicity. Contamination of soil and water by radioactive isotopes degrades the environmental quality and biodiversity. They persist in soils for a considerable amount of time and disturb the fauna and flora of any affected area. Hence, their removal from the contaminated medium is inevitable to prevent their entry into the food chain and the organisms at higher levels of the food chain. Physicochemical methods for radioactive element remediation are effective; however, they are not eco-friendly, can be expensive and impractical for large-scale remediation. Contrastingly, different bioremediation approaches, such as phytoremediation using appropriate plant species for removing the radionuclides from the polluted sites, and microbe-based remediation, represent promising alternatives for cleanup. In this review, sources of radionuclides in soil as well as their hazardous impacts on plants are discussed. Moreover, various conventional physicochemical approaches used for remediation discussed in detail. Similarly, the effectiveness and superiority of various bioremediation approaches, such as phytoremediation and microbe-based remediation, over traditional approaches have been explained in detail. In the end, future perspectives related to enhancing the efficiency of the phytoremediation process have been elaborated.
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Affiliation(s)
- Shahzaib Ali
- Department of Agroecosystems, Faculty of Agriculture and Technology, University of South Bohemia in Ceske Budejovice, Branišovská 1645/31A, 37005, Ceske Budejovice, Czech Republic
| | - Sadia Babar Baloch
- Department of Agroecosystems, Faculty of Agriculture and Technology, University of South Bohemia in Ceske Budejovice, Branišovská 1645/31A, 37005, Ceske Budejovice, Czech Republic
| | - Jaroslav Bernas
- Department of Agroecosystems, Faculty of Agriculture and Technology, University of South Bohemia in Ceske Budejovice, Branišovská 1645/31A, 37005, Ceske Budejovice, Czech Republic.
| | - Petr Konvalina
- Department of Agroecosystems, Faculty of Agriculture and Technology, University of South Bohemia in Ceske Budejovice, Branišovská 1645/31A, 37005, Ceske Budejovice, Czech Republic
| | - Eze Festus Onyebuchi
- Department of Agroecosystems, Faculty of Agriculture and Technology, University of South Bohemia in Ceske Budejovice, Branišovská 1645/31A, 37005, Ceske Budejovice, Czech Republic
| | - Muhammad Naveed
- Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, 38040, Pakistan
| | - Hassan Ali
- Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, 38040, Pakistan
| | - Zameer Hussain Jamali
- College of Environmental Science, Sichuan Agricultural University, 611130, Chengdu, Sichuan, China
| | - Mohammad Tahsin Karimi Nezhad
- Department of Forest Ecology, The Silva Tarouca Research Institute for Landscape and Ornamental 13 Gardening, Lidicka, 25/27, Brno, 60200, Czech Republic
| | - Adnan Mustafa
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences Guangzhou, 510650, China.
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Tong CY, Honda K, Derek CJC. Enhancing organic matter productivity in microalgal-bacterial biofilm using novel bio-coating. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 906:167576. [PMID: 37804964 DOI: 10.1016/j.scitotenv.2023.167576] [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: 07/19/2023] [Revised: 09/20/2023] [Accepted: 10/01/2023] [Indexed: 10/09/2023]
Abstract
Research on renewable energy from microalgae has led to a growing interest in porous substrate photobioreactors, but their widespread adoption is currently limited to pure microalgal biofilm cultures. The behavior of microalgal-bacterial biofilms immobilized on microporous substrates remains as a research challenge, particularly in uncovering their mutualistic interactions in environment enriched with dissolved organic matter. Therefore, this study established a novel culture platform by introducing microalgal-derived bio-coating that preconditioned hydrophilic polyvinylidene fluoride membranes for the microalgal-bacterial biofilm growth of freshwater microalgae, Chlorella vulgaris ESP 31 and marine microalgae, Cylindrotheca fusiformis with bacteria, Escherichia coli. In the attached co-culture mode, the bio-coating we proposed demonstrated the ability to enhance microalgal growth for both studied species by a range of 2.5 % to 19 % starting from day 10 onwards. Additionally, when compared to co-culture on uncoated membranes, the bio-coating exhibited a significant bacterial growth promotion effect, increasing bacterial growth by at least 2.35 times for the C. vulgaris-E. coli co-culture after an initial adaptation phase. A significant increase of at least 72 % in intracellular biochemical compounds (including chlorophyll, polysaccharides, proteins, and lipids) was observed within just five days, primarily due to the high concentration of pre-coated organic matter, mainly sourced from the internal organic matter (IOM) of C. fusiformis. Higher accumulation of organic compounds in the bio-coating indirectly triggers a competition between microalgae and bacteria which potentially stimulate the production of additional intra-/extra-organic substances as a defensive response. In short, insight gained from this study may represent a paradigm shift in the ways that symbiotic interactions are promoted to increase the yield of specific bio-compounds with the presence of bio-coating.
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Affiliation(s)
- C Y Tong
- School of Chemical Engineering, Engineering Campus, Universiti Sains Malaysia, Nibong Tebal, 14300 Penang, Malaysia
| | - Kohsuke Honda
- International Center for Biotechnology, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - C J C Derek
- School of Chemical Engineering, Engineering Campus, Universiti Sains Malaysia, Nibong Tebal, 14300 Penang, Malaysia.
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Qin S, Wang K, Gao F, Ge B, Cui H, Li W. Biotechnologies for bulk production of microalgal biomass: from mass cultivation to dried biomass acquisition. BIOTECHNOLOGY FOR BIOFUELS AND BIOPRODUCTS 2023; 16:131. [PMID: 37644516 PMCID: PMC10466707 DOI: 10.1186/s13068-023-02382-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 08/11/2023] [Indexed: 08/31/2023]
Abstract
Microalgal biomass represents a sustainable bioresource for various applications, such as food, nutraceuticals, pharmaceuticals, feed, and other bio-based products. For decades, its mass production has attracted widespread attention and interest. The process of microalgal biomass production involves several techniques, mainly cultivation, harvesting, drying, and pollution control. These techniques are often designed and optimized to meet optimal growth conditions for microalgae and to produce high-quality biomass at acceptable cost. Importantly, mass production techniques are important for producing a commercial product in sufficient amounts. However, it should not be overlooked that microalgal biotechnology still faces challenges, in particular the high cost of production, the lack of knowledge about biological contaminants and the challenge of loss of active ingredients during biomass production. These issues involve the research and development of low-cost, standardized, industrial-scale production equipment and the optimization of production processes, as well as the urgent need to increase the research on biological contaminants and microalgal active ingredients. This review systematically examines the global development of microalgal biotechnology for biomass production, with emphasis on the techniques of cultivation, harvesting, drying and control of biological contaminants, and discusses the challenges and strategies to further improve quality and reduce costs. Moreover, the current status of biomass production of some biotechnologically important species has been summarized, and the importance of improving microalgae-related standards for their commercial applications is noted.
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Affiliation(s)
- Song Qin
- Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, No. 19, Chunhui Road, Laishan District, Yantai, 264003, Shandong, China.
| | - Kang Wang
- Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, No. 19, Chunhui Road, Laishan District, Yantai, 264003, Shandong, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Fengzheng Gao
- Bioprocess Engineering, AlgaePARC, Wageningen University, P.O. Box 16, 6700 AA, Wageningen, Netherlands
- Laboratory of Sustainable Food Processing, ETH Zürich, 8092, Zurich, Switzerland
- Laboratory of Nutrition and Metabolic Epigenetics, ETH Zürich, 8603, Schwerzenbach, Switzerland
| | - Baosheng Ge
- College of Chemical Engineering and Center for Bioengineering and Biotechnology, China University of Petroleum (East China), Qingdao, 266580, China
| | - Hongli Cui
- Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, No. 19, Chunhui Road, Laishan District, Yantai, 264003, Shandong, China
| | - Wenjun Li
- Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, No. 19, Chunhui Road, Laishan District, Yantai, 264003, Shandong, China
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Panwar R, Mathur J. Comparative analysis of remediation efficiency and ultrastructural translocalization of polycyclic aromatic hydrocarbons in Medicago sativa, Helianthus annuus, and Tagetes erecta. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2023; 25:1743-1761. [PMID: 36935611 DOI: 10.1080/15226514.2023.2189967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are semi-volatile anthropogenic contaminants that can damage soil fertility and threaten the environment due to their hazardous effects on various ecological parameters. The experimental objective was divided into two parts because PAHs are always present in mixtures. The toxicity of anthracene, phenanthrene, pyrene, and fluoranthene was examined and investigated the potential of three phytoremediator plants species viz Tagetes erecta, Helianthus annuus, and Medicago sativa for remediation and translocation of individual PAH. PAHs were shown to have inhibitory or stimulating effects on growth, antioxidant properties, and impact on the structure of plant cells. The result showed that M. sativa significantly enhances the removal rate of PAHs in the soil. The dissipation rate reached 96.2% in M. sativa planted soil, followed by H. annuus and T. erecta. Among the plant species, M. sativa exhibited the highest root and shoot concentrations (314.37 and 169.55 mg kg-1), while the lowest concentration was 187.56 and 76.60 mg kg-1 in T. erecta. SEM-EDX and fluorescence micrographs confirmed that pyrene altered plant tissue's ultrastructure and cell viability and was found to be the most toxic and resistant. M. sativa was proven to be the most effective plant for the mitigation of PAHs.
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Affiliation(s)
- Ritu Panwar
- Department of Bioscience and Biotechnology, Banasthali Vidyapith, Banasthali, India
| | - Jyoti Mathur
- Department of Bioscience and Biotechnology, Banasthali Vidyapith, Banasthali, India
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Ota S, Yoshimura K, Kosugi C, Kawano S. Taxonomic and physiological studies of Parachlorella kimitsuensis sp. nov. (Trebouxiophyceae), which shows high ammonium tolerance. ALGAL RES 2023. [DOI: 10.1016/j.algal.2023.103054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2023]
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8
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Li S, Wang S, Wong MH, Zaynab M, Wang K, Zhong L, Ouyang L. Changes in the composition of bacterial communities and pathogen levels during wastewater treatment. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:1232-1243. [PMID: 35913690 DOI: 10.1007/s11356-022-21947-8] [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: 03/19/2022] [Accepted: 07/06/2022] [Indexed: 06/15/2023]
Abstract
Wastewater treatment plants have been described as a potential source of spreading pathogens to the receiving water. However, few studies are reporting the presence and concentration changes of pathogens in these matrices. High-throughput sequencing provides new insights into understanding the changes of bacterial communities throughout wastewater treatment plants (WWTPs). In this study, the changes in microbial community composition and the levels of representative pathogens of effluents during the wastewater treatment process in two municipal WWTPs (A and B) were analyzed using Illumina NovaSeq sequencing and qPCR. Proteobacteria was the most abundant phylum in all samples, accounting for 45.0-75.2% of the bacterial community, followed by Firmicutes, Bacteroidetes, Actinobacteria, and Nitrospirae. A slight difference was observed between the bacterial community compositions of WWTPs A and B. However, a significant difference in the community compositions of effluent samples at different treatment stages was observed. Nutrients had a more substantial impact on bacterial community composition than physicochemical factors. Most human-associated Bacteroides and Mycobacterium were eliminated during the wastewater treatment process in both WWTPs. The bacterial community richness in WWTP A was significantly higher than that in WWTP B. The results of this study will provide insights into the potential problems that exist in WWTPs. In turn, these insights can enable the efficient and stable operation of WWTPs and help prevent the spread of pathogens.
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Affiliation(s)
- Shuangfei Li
- Shenzhen Key Laboratory of Marine Bioresource & Eco-Environmental Sciences, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518071, China
| | - Shilin Wang
- Shenzhen Key Laboratory of Marine Bioresource & Eco-Environmental Sciences, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518071, China
| | - Ming Hung Wong
- Environment, Education and Research (CHEER), Consortium On Health, The Education University of Hong Kong, Tai Po, Hong Kong, China
| | - Madiha Zaynab
- Shenzhen Key Laboratory of Marine Bioresource & Eco-Environmental Sciences, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518071, China
| | - Keju Wang
- Shenzhen Key Laboratory of Marine Bioresource & Eco-Environmental Sciences, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518071, China
| | - Liping Zhong
- Shenzhen Key Laboratory of Marine Bioresource & Eco-Environmental Sciences, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518071, China
| | - Liao Ouyang
- School of Materials and Environmental Engineering, Shenzhen Polytechnic, Shenzhen, 518055, China.
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Effect of different microalga-based technologies on biogas upgrading and nutrient removal by induction with strigolactone and endophytic bacteria. ALGAL RES 2022. [DOI: 10.1016/j.algal.2022.102768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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10
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Fu Q, Lai JL, Li C, Ji XH, Luo XG. Phytotoxicity mechanism of the natural radionuclide thorium in Vicia faba. JOURNAL OF HAZARDOUS MATERIALS 2022; 424:127718. [PMID: 34815127 DOI: 10.1016/j.jhazmat.2021.127718] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 10/26/2021] [Accepted: 11/04/2021] [Indexed: 06/13/2023]
Abstract
Elucidation of the phytotoxic mechanisms of thorium (Th) is important for controlling Th accumulation in crops and improving the efficiency of phytoremediation. Here, we analyzed the subcellular distribution of Th in Vicia faba seedlings and the toxic reaction of seedlings to Th (5-40 μmol·L-1) at the subcellular and cellular levels. Increasing the phosphate level in the culture medium from 0.01 to 0.1 mmol·L-1 decreased the Th accumulation by the roots by 47-57%. Th was mainly distributed in the root cell walls (94-96%) and existed mainly in the form of residue (92-94%). Th accumulation in the root was similar to the changes observed for P, Ni, Cu, and Fe. High concentrations of Th (40 μmol·L-1) induced abnormal root growth and leaf photosynthetic metabolism. At the cellular level, Th (40 μmol·L-1) induced root edge cell death and inhibited root respiration and cell mitosis. SOD, POD and CAT activities were involved in the regulation of reactive oxygen species accumulation in the roots. Untargeted metabolomics identified 580 and 262 differentially expressed metabolites in roots and leaves. At the metabolic level, its toxicological mechanism involved a severe inhibition of the expression of nucleotides in roots and leaves.
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Affiliation(s)
- Qian Fu
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China
| | - Jin-Long Lai
- State Key Laboratory of NBC Protection for Civilian, Beijing 102205, China; Engineering Research Center of Biomass Materials, Ministry of Education, Southwest University of Science and Technology, Mianyang 621010, China
| | - Chen Li
- College of Chemical and Environment Science, Shaanxi University of Technology, Hanzhong 723000, China; State Key Laboratory of NBC Protection for Civilian, Beijing 102205, China
| | - Xiao-Hui Ji
- College of Chemical and Environment Science, Shaanxi University of Technology, Hanzhong 723000, China; State Key Laboratory of NBC Protection for Civilian, Beijing 102205, China
| | - Xue-Gang Luo
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China; State Key Laboratory of NBC Protection for Civilian, Beijing 102205, China.
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Chan SS, Khoo KS, Chew KW, Ling TC, Show PL. Recent advances biodegradation and biosorption of organic compounds from wastewater: Microalgae-bacteria consortium - A review. BIORESOURCE TECHNOLOGY 2022; 344:126159. [PMID: 34673198 DOI: 10.1016/j.biortech.2021.126159] [Citation(s) in RCA: 111] [Impact Index Per Article: 55.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 10/12/2021] [Accepted: 10/14/2021] [Indexed: 06/13/2023]
Abstract
The litter of persistent organic pollutants (POPs) into the water streams and soil bodies via industrial effluents led to several adverse effects on the environment, health, and ecosystem. For the past decades, scientists have been paying efforts in the innovation and development of POPs removal from wastewater treatment. However, the conventional methods used for the removal of POPs from wastewater are costly and could lead to secondary pollution including soil and water bodies pollution. In recent, the utilization of green mechanisms such as biosorption, bioaccumulation and biodegradation has drawn attention and prelude the potential of green technology globally. Microalgae-bacteria consortia have emerged to be one of the latent wastewater treatment systems. The synergistic interactions between microalgae and bacteria could proficiently enhance the existing biological wastewater treatment system. This paper will critically review the comparison of conventional and recent advanced wastewater treatment systems and the mechanisms of the microalgae-bacteria symbiosis system.
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Affiliation(s)
- Sook Sin Chan
- Institut Biologi Sains, Fakulti Sains, Universiti Malaya, Kuala Lumpur, Malaysia
| | - Kuan Shiong Khoo
- Department of Chemical and Environmental Engineering, Faculty of Science and Engineering, University of Nottingham Malaysia, Jalan Broga, 43500 Semenyih, Selangor Darul Ehsan, Malaysia
| | - Kit Wayne Chew
- School of Energy and Chemical Engineering, Xiamen University Malaysia, Jalan Sunsuria, Bandar Sunsuria, 43900 Sepang, Selangor Darul Ehsan, Malaysia; College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, China
| | - Tau Chuan Ling
- Institut Biologi Sains, Fakulti Sains, Universiti Malaya, Kuala Lumpur, Malaysia
| | - Pau Loke Show
- Department of Chemical and Environmental Engineering, Faculty of Science and Engineering, University of Nottingham Malaysia, Jalan Broga, 43500 Semenyih, Selangor Darul Ehsan, Malaysia.
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Kang X, Gao Z, Zheng L, Zhang X, Li H. Regulation of Lactobacillus plantarum on the reactive oxygen species related metabolisms of Saccharomyces cerevisiae. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.111492] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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13
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Toxicity of insecticidal proteins from entomopathogenic bacteria to Galleria mellonella larvae. 3 Biotech 2021; 11:101. [PMID: 33520586 DOI: 10.1007/s13205-021-02662-6] [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: 09/23/2020] [Accepted: 01/13/2021] [Indexed: 10/22/2022] Open
Abstract
Entomopathogenic bacteria have great potential in insect control in the agricultural production because they produce a large variety of protein toxins that can kill their hosts by damaging the insect midgut. However, the mechanisms on how these toxins or specific insecticidal proteins act on insects are very diverse and elusive. Here we select Galleria mellonella larvae as the host to explore the effects of insecticidal proteins on the activities of three protective enzymes (SOD, POD, and CAT) and on the morphology of the midgut tissues. As a result, the activities of the three enzymes consistently increased and then decreased when the host was injected with the insecticidal proteins from the entomopathogenic bacterium Enterobacter cloacae. Moreover, the microscopy analysis showed that tissues, cells, and organelles of the host midgut are all diseased after uptake of the insecticidal proteins. Remarkably, the protein toxins contributed to the deformation of the midgut, blackening of the midgut surface, dissolution of cell membrane, shrinkage of cell nucleus, and chromatin condensation. Our findings will advance the explanation of G. mellonella pathogenesis caused by the insecticidal proteins.
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Scroccarello A, Della Pelle F, Ferraro G, Fratini E, Tempera F, Dainese E, Compagnone D. Plasmonic active film integrating gold/silver nanostructures for H 2O 2 readout. Talanta 2020; 222:121682. [PMID: 33167288 DOI: 10.1016/j.talanta.2020.121682] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 09/13/2020] [Accepted: 09/15/2020] [Indexed: 12/16/2022]
Abstract
A nanostructured Ag/Au adhesive film for H2O2 reagentless determination is here proposed. The film has been realised onto ELISA polystyrene microplates. Microwells surface has been initially modified with a gold nanoparticles (AuNPs)/polydopamine thin-film. The pristine AuNPs-decorated film was later functionalized with catechin (Au-CT) allowing a uniform formation of a plasmonic active nanostructured silver network in presence of Ag+. Changes in localized surface plasmon resonance (LSPR) of the silver network upon addition of H2O2 has been used as analytical signal, taking advantage of the etching phenomenon. The Ag/Au nanocomposite-film is characterized by a well-defined (LSPRmax = 405 ± 5 nm), reproducible (intraplate RSD ≤ 9.8%, n = 96; inter-plate RSD ≤ 11.4%, n = 480) and stable LSPR signal. The film's analytical features have been tested for H2O2 and glucose (bio)sensing. Satisfactory analytical performances were obtained both for H2O2 (linear range 1-200 μM, R2 = 0.9992, RSD ≤ 6.3%, LOD = 0.2 μM) and glucose (linear range 2-250 μM, R2 = 0.9998, RSD ≤ 8.9%, LOD = 0.4 μM). As proof of applicability, the determination of the two analytes in soft drinks has been carried out achieving good and reproducible recoveries (84-111%; RSD ≤ 9%). The developed nanostructured film overcomes analytical drawbacks associated with the use of colloidal dispersions in plasmonic assays carried out in solution; the low cost, robustness, ease of use and possibility of coupling enzymatic reactions appears very promising for (bio)sensors based on the detection of H2O2.
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Affiliation(s)
- Annalisa Scroccarello
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Via Renato Balzarini 1, 64100, Teramo, Italy
| | - Flavio Della Pelle
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Via Renato Balzarini 1, 64100, Teramo, Italy.
| | - Giovanni Ferraro
- Department of Chemistry "Ugo Schiff" and CSGI, University of Florence, Via Della Lastruccia 3-Sesto Fiorentino, I-50019, Florence, Italy
| | - Emiliano Fratini
- Department of Chemistry "Ugo Schiff" and CSGI, University of Florence, Via Della Lastruccia 3-Sesto Fiorentino, I-50019, Florence, Italy
| | - Francesco Tempera
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Via Renato Balzarini 1, 64100, Teramo, Italy
| | - Enrico Dainese
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Via Renato Balzarini 1, 64100, Teramo, Italy
| | - Dario Compagnone
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Via Renato Balzarini 1, 64100, Teramo, Italy.
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16
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Vyas R, Pandya M, Pohnerkar J, Kumar GN. Vitreoscilla hemoglobin promotes biofilm expansion and mitigates sporulation in Bacillus subtilis DK1042. 3 Biotech 2020; 10:118. [PMID: 32117679 DOI: 10.1007/s13205-020-2115-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Accepted: 02/02/2020] [Indexed: 11/29/2022] Open
Abstract
Biofilm formation is considered as a stress combating strategy adopted by bacteria in response to variety of cellular and environmental signals. Impaired respiration due to low oxygen concentrations is one such signal that triggers wrinkling and robust biofilm formation in Bacillus subtilis. Vitreoscilla hemoglobin (VHb) improves microaerobic growth and bioproduct synthesis in a variety of bacteria by supplying oxygen to the respiratory chain. Present study was carried out to determine the effect of VHb on multicellularity of B. subtilis. Thus, B. subtilis DK1042 (WT) was genetically modified to express vgb and gfp genes under the control of P43 promoter at amyE locus by double cross over events. Biofilm formation by the integrant NRM1113 and WT was monitored on Lysogeny broth (LB) and LB containing glycerol and manganese (LBGM) medium. The WT produced more wrinkled colonies than NRM1113 on LB and LBGM medium. Concomitantly, biofilm-associated sporulation and production of pulcherriminic acid was decreased in NRM1113 as compared to WT on LB as well as LBGM. Expression studies of genes encoding structural components of biofilms revealed ~ 70% down-regulation of bslA gene in NRM1113 on both LB and LBGM which is correlated with reduced wrinkling in NRM1113. Moreover, NRM1113 showed increased colony expansion compared to WT in LB, LBGM and high osmolarity conditions. VHb expression alters various processes in different host cells, our study represents that VHb modulates biofilm formation, sporulation and pulcherriminic acid formation in B. subtilis DK1042.
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Affiliation(s)
- Riddhi Vyas
- Department of Biochemistry, Faculty of Science, The Maharaja Sayajirao University of Baroda, Vadodara, Gujarat 390002 India
| | - Maharshi Pandya
- Department of Biochemistry, Faculty of Science, The Maharaja Sayajirao University of Baroda, Vadodara, Gujarat 390002 India
| | - Jayashree Pohnerkar
- Department of Biochemistry, Faculty of Science, The Maharaja Sayajirao University of Baroda, Vadodara, Gujarat 390002 India
| | - G Naresh Kumar
- Department of Biochemistry, Faculty of Science, The Maharaja Sayajirao University of Baroda, Vadodara, Gujarat 390002 India
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17
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Zhang SJ, Du XP, Zhu JM, Meng CX, Zhou J, Zuo P. The complete genome sequence of the algicidal bacterium Bacillus subtilis strain JA and the use of quorum sensing to evaluate its antialgal ability. ACTA ACUST UNITED AC 2020; 25:e00421. [PMID: 31956522 PMCID: PMC6961068 DOI: 10.1016/j.btre.2020.e00421] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2019] [Revised: 12/17/2019] [Accepted: 01/09/2020] [Indexed: 11/25/2022]
Abstract
B. subtilis strain JA exhibit strong algicidal effects on algae with the inhibition rate exceeding 80 % within 48 h. The algicidal activity is regulated by AI-2 type quorum sensing. The complete genome information is provided for developing novel chemical-ecological methods to control harmful algae.
We describe the isolation of Bacillus subtilis strain JA and demonstrate that this bacterium exhibited strong algicidal effects on the algae Alexandrium minutum with an inhibition rate exceeding 80 % within 48 h. B. subtilis JA significantly reduced the photosynthetic efficiency of A. minutum and caused extensive morphological damage to the algae. Genomic analysis of B. subtilis JA demonstrated that a putative AI-2 type quorum sensing (QS) gene (LuxS) is present in its genome cluster, which is regulate pheromone biosynthesis. Interestingly, the exogenous addition of a QS-oligopeptide (ComX-pheromone) improved the algicidal efficiency of B. subtilis JA, thus indicating that the algicidal activity of this bacterium is potentially regulated by QS. Collectively, our data describe a potential antialgal bacterium and speculated that its behavior can be modulated by QS signal. B. subtilis JA may therefore represent a valuable tool for the development of novel chemical-ecological methods with which to control harmful algae.
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Affiliation(s)
- Sheng-Jie Zhang
- The Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, Guangdong Province, PR China
| | - Xiao-Peng Du
- The Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, Guangdong Province, PR China
| | - Jian-Ming Zhu
- The Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, Guangdong Province, PR China.,School of Environment, Harbin Institute of Technology, Harbin, 150090, Heilongjiang Province, PR China
| | - Chen-Xu Meng
- Second Institute of Oceanography, Ministry of Natural Resources, Hanzhou, 310000, Zhejiang Province, PR China
| | - Jin Zhou
- The Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, Guangdong Province, PR China
| | - Ping Zuo
- The School of Geography and Ocean Science, Nanjing University, Nanjing, 210093, Jiangsu Province, PR China
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18
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Liu J, Yang C, Chi Y, Wu D, Dai X, Zhang X, Igarashi Y, Luo F. Algicidal characterization and mechanism of Bacillus licheniformis
Sp34 against Microcystis aeruginosa
in Dianchi Lake. J Basic Microbiol 2019; 59:1112-1124. [DOI: 10.1002/jobm.201900112] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2019] [Revised: 06/26/2019] [Accepted: 07/25/2019] [Indexed: 12/13/2022]
Affiliation(s)
- Jinyu Liu
- Chongqing Key Laboratory, Research Center of Bioenergy and Bioremediation, College of Resources and Environment; Southwest University; Chongqing China
| | - Caiyun Yang
- Chongqing Key Laboratory, Research Center of Bioenergy and Bioremediation, College of Resources and Environment; Southwest University; Chongqing China
| | - Yuxin Chi
- Chongqing Key Laboratory, Research Center of Bioenergy and Bioremediation, College of Resources and Environment; Southwest University; Chongqing China
| | - Donghao Wu
- Chongqing Key Laboratory, Research Center of Bioenergy and Bioremediation, College of Resources and Environment; Southwest University; Chongqing China
| | - Xianzhu Dai
- Chongqing Key Laboratory, Research Center of Bioenergy and Bioremediation, College of Resources and Environment; Southwest University; Chongqing China
| | - Xiaohui Zhang
- Chongqing Key Laboratory, Research Center of Bioenergy and Bioremediation, College of Resources and Environment; Southwest University; Chongqing China
| | - Yasuo Igarashi
- Chongqing Key Laboratory, Research Center of Bioenergy and Bioremediation, College of Resources and Environment; Southwest University; Chongqing China
| | - Feng Luo
- Chongqing Key Laboratory, Research Center of Bioenergy and Bioremediation, College of Resources and Environment; Southwest University; Chongqing China
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19
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Liao C, Zheng M, Chen Y, Wang M, Li B. Immunosuppression mechanism of entomopathogenic bacteria against Galleria mellonella larvae. Process Biochem 2019. [DOI: 10.1016/j.procbio.2019.03.021] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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20
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Gu Q, Duan G, Yu X. Bioconversion of Flavonoid Glycosides from Hippophae rhamnoides Leaves into Flavonoid Aglycones by Eurotium amstelodami. Microorganisms 2019; 7:E122. [PMID: 31060344 PMCID: PMC6560391 DOI: 10.3390/microorganisms7050122] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Revised: 04/30/2019] [Accepted: 04/30/2019] [Indexed: 01/10/2023] Open
Abstract
The flowering process has been reported to play crucial roles in improving the flavor and efficacy of fermented tea. Hippophae rhamnoides leaves containing many beneficial ingredients are a suitable plant source for tea processing. In this study, we isolated a β-glucosidase-producing fungus Eurotium amstelodami BSX001 from the fermented tea and used Hippophae rhamnoides leaves (HRL) as a substrate to explore the detailed process of bioconversion of some important functional factors. The results show that the contents of total phenolic compounds and flavonoids increased significantly after seven days, especially flavonoid aglycones (e.g., quercetin, kaempferol, and isorhamnetin). Such compounds greatly enhance the antioxidative activity of fermented products. Metabolic analysis of the standard compounds (rutin, quercetin-3-glucoside, kaempferol-3-glucoside, quercetin, isorhamnetin-3-glucoside, isorhamnetin, and kaempferol) further confirmed the effective biotransformation by E. amstelodami. Mechanisms of the bioconversion could be involved in deglycosylation, dihydroxylation, and O-methylation. Our findings expand the understanding of tea fermentation process and provide further guidance for the fermented tea industry.
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Affiliation(s)
- Qiuya Gu
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, Jiangsu 214122, China.
| | - Guoliang Duan
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, Jiangsu 214122, China.
| | - Xiaobin Yu
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, Jiangsu 214122, China.
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21
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Gao F, Peng YY, Li C, Yang GJ, Deng YB, Xue B, Guo YM. Simultaneous nutrient removal and biomass/lipid production by Chlorella sp. in seafood processing wastewater. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 640-641:943-953. [PMID: 30021327 DOI: 10.1016/j.scitotenv.2018.05.380] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Revised: 05/30/2018] [Accepted: 05/30/2018] [Indexed: 06/08/2023]
Abstract
Microalgae cultivation in wastewater has received increasing attention in recent years due to its many advantages. In this work, microalgae were cultured in seafood processing wastewater (SPW) for algal biomass and lipid production as well as nutrient removal. The biomass yield of Chlorella sp. achieved in the batch cultivation was 896 mg L-1, indicating that SPW contains a certain amount of nutrients which can be used for the growth of microalgae. However, the maximum specific growth rate of Chlorella sp. cultured in SPW throughout the whole cultivation period was only 0.040 d-1, suggesting that the growth of algal cells was inhibited during the culture process. High concentration of unionized ammonia in the SPW was found to be a factor inhibiting the growth of Chlorella sp. Aerated SPW (ASPW) and diluted SPW (DSPW) proved to be better culture media than SPW without pretreatment. The maximum specific growth rates of Chlorella sp. cultured in ASPW and DSPW during the culture interval were 0.156 and 0.091 d-1, respectively. Aeration pretreatment of SPW reduced the amount of toxic unionized ammonia, while most of the nutrients were retained in the wastewater. Therefore, higher biomass productivity (77.7 mg L-1 d-1) and higher lipid productivity (20.4 mg L-1 d-1) of microalgae were achieved in ASPW. Additionally, improved nutrient removal rates from ASPW were also achieved due to the faster growth of microalgae. The average nutrient removal rates in ASPW during the whole cultivation period were 4.98 and 1.91 mg L-1 d-1 for nitrogen and phosphorus, respectively.
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Affiliation(s)
- Feng Gao
- College of Marine Science and Technology, Zhejiang Ocean University, Zhoushan 316000, China.
| | - Yuan-Yuan Peng
- College of Marine Science and Technology, Zhejiang Ocean University, Zhoushan 316000, China
| | - Chen Li
- College of Marine Science and Technology, Zhejiang Ocean University, Zhoushan 316000, China
| | - Guo-Jing Yang
- College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo 315100, China.
| | - Yi-Bing Deng
- College of Marine Science and Technology, Zhejiang Ocean University, Zhoushan 316000, China
| | - Bin Xue
- Marine Fisheries Research Institute of Zhejiang Province, Zhoushan 316000, China
| | - Yuan-Ming Guo
- Marine Fisheries Research Institute of Zhejiang Province, Zhoushan 316000, China
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22
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Liu X, He J, Liao C. Optimization of cryoprotectants to harvest high active cells of a Scenedesmus -lysing Enterobacter sp. during long-term preservation. ALGAL RES 2016. [DOI: 10.1016/j.algal.2015.12.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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