Review
Agricultural Engineering
Chenming Dai, Feifei Wang
Summary: This review focuses on the application of microalgae-bacteria consortia (MBC) in wastewater treatment and bio-product production, emphasizing the interaction mechanisms between microalgae and bacteria. It also summarizes the use of MBC in wastewater treatment and biorefinery.
BIORESOURCE TECHNOLOGY
(2024)
Review
Agriculture, Multidisciplinary
Paride Salvatore Occhipinti, Nunziatina Russo, Paola Foti, Irene Maria Zingale, Alessandra Pino, Flora Valeria Romeo, Cinzia L. Randazzo, Cinzia Caggia
Summary: The increased attention to health and aging population, along with changing lifestyles and medical discoveries, has led to a growing demand for natural and nutrient-rich foods, particularly microalgae products. Microalgae offer a promising solution for a sustainable and eco-friendly economy, utilizing non-arable land and non-potable water while capturing carbon dioxide and solar energy. Their high content of bioactive molecules, such as amino acids, peptides, proteins, and pigments, makes them valuable for various applications including nutrition, cosmetics, biofuel, and wastewater treatment. This review provides an overview of current microalgae cultivation systems and their biotechnological applications, as well as potential research opportunities for environmental, human, and animal benefits.
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
(2023)
Review
Biotechnology & Applied Microbiology
Jose M. Salvador Lopez, Inge N. A. Van Bogaert
Summary: Fatty acid metabolism is well-studied, but fatty acid transport is overlooked; there are important knowledge gaps in understanding how fatty acids cross biological membranes, particularly in microorganisms; identifying fatty acid transporters in microorganisms could lead to new drug targets or improvements in microbial cell factories.
BIOTECHNOLOGY AND BIOENGINEERING
(2021)
Article
Biotechnology & Applied Microbiology
Breanna Osborne, Nachshon Siboni, Justin R. Seymour, Peter Ralph, Mathieu Pernice
Summary: This study explores the potential of combining mutualistic species as a consortium to enhance antibacterial properties against Vibrio parahaemolyticus. The combination of Tetraselmis sp. and Pseudoalteromonas peptidolytica shows the greatest inhibition rate of V. parahaemolyticus. This probiotic consortia has the potential for use as a biocontrol technique within mariculture.
JOURNAL OF APPLIED PHYCOLOGY
(2023)
Article
Engineering, Environmental
Serena Lima, Alberto Brucato, Giuseppe Caputo, Franco Grisafi, Francesca Scargiali
Summary: In this study, municipal wastewater was treated using microalgal/activated sludge consortia to achieve a positive interaction between microalgae and heterotrophic bacteria for bioremediation. The strain of Chlorella sp CW2 was isolated and characterized, and its combination with activated sludge in different ratios was evaluated for wastewater treatment. The best results were obtained with a ratio of 1:2 and 2:1 for Chlorella sp CW2 and activated sludge, achieving COD, total nitrogen, and total phosphorous removal efficiencies of 81.39%, 86.12%, and 82.89% respectively. Analysis of the residual biomass suggested that the most promising sample for valorization was the combination of Chlorella sp CW2 and activated sludge in a ratio of 1:5.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Review
Plant Sciences
Yeeun Kang, Minjeong Kim, Changki Shim, Suyea Bae, Seonghoe Jang
Summary: Modern agriculture heavily relies on chemical fertilizers, leading to environmental pollution and soil degradation. Microalgae and plant growth-promoting bacteria are identified as potential alternatives to chemical fertilizers for improving soil fertility, due to their biofertilizing properties. Their synergistic effects in a co-culture/combination system show promise for sustainable agriculture and wastewater treatment.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Sung-Ho Lee, Won-Hyeon Kim, Kyung-Won Ju, Min-Sun Lee, Han-Soo Kim, Jong-Ho Lee, Yu-Jin Jung, Bong-Ju Kim
Summary: The study observed the possibility of replacing chemical compound mouthwash with natural extracts. It was found that some natural extracts and extract mixtures had antibacterial and anti-inflammatory potential, which may help maintain oral health.
APPLIED SCIENCES-BASEL
(2021)
Review
Environmental Sciences
Lisa Aditya, T. M. Indra Mahlia, Luong N. Nguyen, Hang P. Vu, Long D. Nghiem
Summary: The review discusses the diversity of microalgae and bacteria and their potential as a consortium for efficient wastewater treatment and nutrient recovery. It emphasizes the use of microalgae biomass derived from wastewater as a renewable feedstock for various applications, and highlights the interactions and characteristics of microalgae in a consortium system.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Review
Environmental Sciences
Zeyuan Wang, Yuhao Chu, Haixing Chang, Peng Xie, Chaofan Zhang, Fanghua Li, Shih-Hsin Ho
Summary: This review discusses the use of microalgae-bacteria consortia for antibiotics removal. The mechanisms, influencing factors, and future research perspectives are introduced. Three innovative treatment systems and three advanced techniques are presented. Concrete implementing schemes of the advanced techniques are provided. Current challenges and future research directions are summarized, along with recommendations for enhancing antibiotics removal efficiency.
Review
Biochemistry & Molecular Biology
Alka Rani, Khem Chand Saini, Felix Bast, Sanjeet Mehariya, Shashi Kant Bhatia, Roberto Lavecchia, Antonio Zuorro
Summary: Oxidative stress is caused by elevated levels of free oxygen radicals, while antioxidants can help reduce cell damage. Microorganisms, with their fast growth and eco-friendly characteristics, are emerging as a promising source of antioxidants.
Review
Environmental Sciences
Ayusmita Ray, Manoranjan Nayak, Amit Ghosh
Summary: Microalgae-based biofuels are recognized globally as environmentally friendly and economically viable options, with the ability to extract high value-added compounds. Co-cultivation practices help enhance biomass productivity and commercialization, contributing to the advancement of microalgal fuel technologies.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Environmental
Jineth Arango, Carmen Contreras, Francois Crouchett-Catalan, Juan Pablo Gallardo, Andres Donoso-Bravo, Raul Munoz, Yves Lesty, Diego Olivares, David Jeison
Summary: This study evaluated the application of a membrane-enhanced bioreactor for sewage treatment. The results showed that the membrane-based system outperformed traditional systems in terms of nitrogen, COD, and phosphorus removal. The membrane filtration provided an effluent free of solids and faecal coliforms, making it suitable for water reuse. Biomass concentration was identified as a key factor influencing the performance of the membrane system.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Engineering, Chemical
Pietro Altimari, Antonio Brasiello, Fabrizio Di Caprio, Francesca Pagnanelli
Summary: This study presents a model-based analysis of the competition between microalgae and bacteria in a continuous bioreactor with recycle, mediated by nitrogen and organic carbon. By analyzing the growth kinetics of microalgae and bacteria, regions of stability for different populations in the bioreactor parameter space are identified, providing guidelines for plant design and control.
CHEMICAL ENGINEERING SCIENCE
(2022)
Review
Environmental Sciences
Helena M. Amaro, Eva M. Salgado, Olga C. Nunes, Jose C. M. Pires, Ana F. Esteves
Summary: Water, the most valuable resource, faces threats from anthropogenic activities that generate high levels of pollutants. Conventional wastewater treatment systems are not efficient in removing these pollutants. Microalgal systems have been seen as an environmentally friendly solution to remove pollutants, antibiotics, coliforms, and antibiotic resistance genes. Recent studies have evaluated the effectiveness of microalgal systems in various types of wastewater treatment.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Agricultural Engineering
Rebecca Nordio, Francisco Javier Delgado, Ana Sanchez-Zurano, Jose Gonzalez Hernandez, Enrique Rodriguez-Miranda, Jose Luis Guzman, Tomas Lafarga, Gabriel Acien
Summary: The present study aimed to evaluate the use of microalga Scenedesmus almeriensis for treating untreated urban wastewater. Two 12 m(3) raceway reactors, one supplemented with wastewater and the other with chemical fertilizer, were operated outdoors in a semi-continuous mode for eight months. The results showed that S. almeriensis could be produced in wastewater without affecting the photosynthetic apparatus, with an average productivity of 13 g center dot m(-2)center dot day(-1) in both systems. Moreover, the nutrient content of the wastewater, including nitrogen, phosphorous, and chemical oxygen demand, was reduced to meet European limitations, with average removal rates of 2.2, 0.2, and 3.0 g center dot m(-2)center dot day(-1) respectively. The raceway reactors demonstrated high potential for microalgal production and efficient biotreatment, proving to be robust and reliable. Additionally, an accurate model was developed to evaluate the effect of environmental conditions on biomass productivity in the clean system (R-2 = 0.9, p = 0.0002).
BIORESOURCE TECHNOLOGY
(2023)
Review
Fisheries
I. S. Fortune, D. M. Paterson
ICES JOURNAL OF MARINE SCIENCE
(2020)
Article
Geosciences, Multidisciplinary
Xindi Chen, Changkuan Zhang, Ian H. Townend, David M. Paterson, Zheng Gong, Qin Jiang, Qian Feng, Xiping Yu
Summary: Cohesive extracellular polymeric substances (EPS) produced by microorganisms on Earth act as bed stabilizers in sedimentary systems, but under wave action they can lead to destabilization, increased sediment mobility, liquefaction, and mechanical oscillation. Understanding the role of EPS in seabed mobility is crucial for managing the vulnerability of coastal wetlands to waves.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Multidisciplinary Sciences
Adam J. Wyness, Irene Fortune, Andrew J. Blight, Patricia Browne, Morgan Hartley, Matthew Holden, David M. Paterson
Summary: The investigation revealed the evolutionary implications of the ecosystem engineering process in intertidal systems. Results showed that microbial community composition and function were influenced by factors such as bioturbation, bioirrigation, and sediment stabilization, with changes in bacterial communities being primarily driven by biogeochemical gradients.
Article
Forestry
Claire Michelet, Daniela Zeppilli, Cedric Hubas, Elisa Baldrighi, Philippe Cuny, Guillaume Dirberg, Cecile Militon, Romain Walcker, Dominique Lamy, Ronan Jezequel, Justine Receveur, Franck Gilbert, Amonda El Houssainy, Aurelie Dufour, Lars-Eric Heimburger-Boavida, Isabelle Bihannic, Lea Sylvi, Baptiste Vivier, Emma Michaud
Summary: Bioindicators assess the mangroves ecological state according to the pressures, with benthic meiofauna diversity and structure responding to sediment variables and contaminant concentrations. Different meiofauna species showed varying responses to the environmental conditions, highlighting their sensitivity to ecological changes. Further research on different scales and levels of deterioration is needed to utilize meiofauna as reliable bioindicators for mangrove ecosystems.
Article
Ecology
Lou Frotte, Alexandre Bec, Cedric Hubas, Fanny Perriere, Sebastien Cordonnier, Etienne Bezault, Dominique Monti
Summary: The study indicates that food quality is a key factor influencing the upstream migration of macrocrustaceans in Caribbean rivers. Algal biofilm and drifting organic matter serve as main sources of eicosapentaenoic acid (EPA), with varying distribution along the altitudinal gradient affecting shrimp settlement and lipid composition.
Article
Biology
Paulo Cartaxana, Felisa Rey, Charlotte LeKieffre, Diana Lopes, Cedric Hubas, Jorge E. Spangenberg, Stephane Escrig, Bruno Jesus, Goncalo Calado, Rosario Domingues, Michael Kuhl, Ricardo Calado, Anders Meibom, Sonia Cruz
Summary: The study demonstrates that sea slugs can enhance their reproductive fitness by stealing chloroplasts, with the photosynthates translocating to reproductive organs and affecting molecular synthesis related to reproduction.
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2021)
Article
Environmental Sciences
C. Maziere, M. Bodo, M. A. Perdrau, C. Cravo-Laureau, R. Duran, C. Dupuy, C. Hubas
Summary: This study aimed to investigate the impact of ocean acidification and warming on the phototrophic communities of hypersaline microbial mats. While warming led to increased salinity and dissolved oxygen concentration, acidification treatments resulted in a higher abundance of chlorophyll derivatives but did not affect photosynthetic efficiency. This suggests a potential shift in the metabolism of green anoxygenic bacteria under acidification treatment.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Maud Fiard, Philippe Cuny, Lea Sylvi, Cedric Hubas, Ronan Jezequel, Dominique Lamy, Romain Walcker, Amonda El Houssainy, Lars-Eric Heimburger-Boavida, Tony Robinet, Isabelle Bihannic, Franck Gilbert, Emma Michaud, Guillaume Dirberg, Cecile Militon
Summary: The study characterized changes in the structure and diversity of microbial communities of mangroves along the urban-to-rural gradient of the Cayenne estuary, which experience low human impact. Environmental determinants like granulometry, dieldrin concentration, pH, and total carbon content were found to significantly correlate to the microbial communities in these mangroves. Different types of weak anthropogenic pressure, such as organic matter enrichment, dieldrin contamination, and naphthalene contamination, were identified to impact the microbial populations and assemblages in the mangroves.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Cedric Hubas, Dominique Monti, Jean-Michel Mortillaro, Sylvie Augagneur, Anne Carbon, Robert Duran, Solange Karama, Tarik Meziane, Patrick Pardon, Theo Risser, Nathalie Tapie, Najet Thiney, Helene Budzinski, Beatrice Lauga
Summary: The rivers in Guadeloupe and Martinique have high levels of chlordecone contamination, which has a significant impact on both aquatic ecosystems and human health. The biochemical composition and microbial community of epilithic biofilms are closely related to chlordecone pollution, and changes in these factors affect the viscoelastic properties of the biofilms. Microorganisms have been found to implement a strategy to scavenge chlordecone, providing new insights into the role of extracellular polymeric substances in microbial adaptation to chlordecone-polluted environments.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Geosciences, Multidisciplinary
Jaco H. Baas, Jonathan Malarkey, Ian D. Lichtman, Laurent O. Amoudry, Peter D. Thorne, Julie A. Hope, Jeffrey Peakall, David M. Paterson, Sarah J. Bass, Richard D. Cooke, Andrew J. Manning, Daniel R. Parsons, Leiping Ye
Summary: Investigating bedform dynamics in the intertidal zone reveals the relationship between different types of bedforms and the flowing fluid, resulting in a phase diagram that integrates wave-dominated, current-dominated, and combined wave-current bedforms. These field data provide a means of predicting the dimensions of bedforms and may have implications for other areas and grain sizes.
FRONTIERS IN EARTH SCIENCE
(2021)
Article
Ecology
James E. Herbert-Read, Ann Thornton, Diva J. Amon, Silvana N. R. Birchenough, Isabelle M. Cote, Maria P. Dias, Brendan J. Godley, Sally A. Keith, Emma McKinley, Lloyd S. Peck, Ricardo Calado, Omar Defeo, Steven Degraer, Emma L. Johnston, Hermanni Kaartokallio, Peter I. Macreadie, Anna Metaxas, Agnes W. N. Muthumbi, David O. Obura, David M. Paterson, Alberto R. Piola, Anthony J. Richardson, Irene R. Schloss, Paul V. R. Snelgrove, Bryce D. Stewart, Paul M. Thompson, Gordon J. Watson, Thomas A. Worthington, Moriaki Yasuhara, William J. Sutherland
Summary: In the Marine and Coastal Horizon Scan, scientists, policymakers, and practitioners collated a list of 15 priority emerging issues likely to affect marine and coastal biodiversity over the next 5-10 years through an iterative voting process. These issues are grouped into three categories: ecosystem impacts, resource exploitation, and new technologies.
NATURE ECOLOGY & EVOLUTION
(2022)
Article
Environmental Sciences
James E. V. Rimmer, Cedric Hubas, Adam J. Wyness, Bruno Jesus, Morgan Hartley, Andrew J. Blight, Antoine Prins, David M. Paterson
Summary: This study found that the order of exposure was less important than the total stressor scenario in terms of impacts on key functional attributes and diatom community structure in estuarine biofilms at environmentally realistic chemical concentrations.
MARINE POLLUTION BULLETIN
(2022)
Article
Multidisciplinary Sciences
Martin Solan, Tom Spencer, David M. Paterson, Christopher A. Unsworth, Elizabeth K. Christie, Andrew J. Blight, Jenny Brown, Helen Brooks, I. Dougal Lichtman, Xiaoyan Wei, Xiaorong Li, Pete Thorne, Julian Leyland, Jasmin A. Godbold, Charlie Thompson, Megan E. Williams, Andrew Plater, Iris Moller, Laurent O. Amoudry
Summary: This article emphasizes the urgent need to address coastal dynamics, particularly in predicting future biological-physical linkages. It suggests the pursuit of more integrated modeling, support for observational networks, and the use of management interventions as controlled experiments.
ROYAL SOCIETY OPEN SCIENCE
(2023)
Article
Biodiversity Conservation
Laurence Jones, Marco Boeri, Mike Christie, Isabelle Durance, Karl L. Evans, David Fletcher, Laura Harrison, Anna Jorgensen, Dario Masante, James McGinlay, David M. Paterson, Reto Schmucki, Chris Short, Natalie Small, Georgina Southon, Timothy Stojanovic, Ruth Waters
Summary: Cultural ecosystem services pose a challenge in decision making due to difficulties in defining and describing them. The study introduces a framework involving cultural capital, social capital, and human capital to understand CES, which was found to be applicable in specific situations. Further research is needed to develop metrics to measure additional factors influencing peoples' motivations to engage with nature.