Article
Marine & Freshwater Biology
Theo W. Dreher, Edward W. Davis, Ryan S. Mueller
Summary: The genome sequences of 16 Nostocales cyanobacteria have been determined, revealing their membership in the ADA clade. Revisions to taxonomy are suggested, creating a new genus and adopting species names independent of morphological traits within the clade due to unreliable discriminatory characteristics.
Article
Food Science & Technology
Svetlana Kurbatova, Nadezhda Berezina, Andrey Sharov, Ekaterina Chernova, Evgeny Kurashov, Yulia Krylova, Igor Yershov, Alexander Mavrin, Natalia Otyukova, Elena Borisovskaya, Roman Fedorov
Summary: To control harmful algae blooms, natural mechanisms based methods are required. This study investigated the effects of an algicide derived from macrophyte metabolites on the biomass of cyanobacteria and other plankton and the production of microcystins. The results showed that the algicide could change the phytoplankton structure, decrease cyanobacterial biomass, and reduce the total concentration of microcystins. Surprisingly, the most toxic microcystins were found to be higher in the microcosms exposed to algicide. The inhibitory effect on cyanobacterial biomass was most significant in complex ecosystems containing fish.
Article
Environmental Sciences
Jacqueline Santos Silva-Cavalcanti, Jayne Crisleny Pereira Silva, Flavio Montenegro de Andrade, Andrea Monteiro Santana Silva Brito, Monica Ferreira da Costa
Summary: This study assessed microplastic pollution in tropical shallow lakes and found different types and colors of microplastics in lake sediments. The results showed that environmental factors influenced the concentration of microplastics, but there was only a small difference between different regions. The study also suggested that pollution from sanitation, sewage effluents, and solid waste may be the main factors contributing to microplastic contamination.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Marine & Freshwater Biology
Theo W. Dreher, Edward W. Davis II, Ryan S. Mueller, Timothy G. Otten
Summary: The ADA clade of Nostocales cyanobacteria plays a significant role in harmful algal bloom events, with highly diverse genomes containing various physiologically important genes. These genomes exhibit stability and are not easily horizontally transmitted. Chromosome rearrangements play a crucial role in the evolution of ADA strains, while phages seem to have limited influence on ADA evolution.
Article
Biodiversity Conservation
Maria Laura Sanchez, Irina Izaguirre, Horacio Zagarese, Maria Romina Schiaffino, Manuel Castro Berman, Leonardo Lagomarsino, G. Chaparro, Sofia Balina, Maria Solange Vera, Kendra Spence Cheruvelil
Summary: While agricultural intensification is associated with lake eutrophication, the role of macrophytes and the effects of agriculture on shallow lakes in the global south remain less understood. A study on the Pampean region of Argentina found that submerged macrophytes, total nitrogen, and nearby agriculture were the main drivers of phytoplankton biomass in the shallow lakes. The conservation of submerged macrophytes and control of agriculture in riparian areas can help stabilize the shallow lakes and maintain a clear regime even in eutrophic conditions.
ECOLOGICAL INDICATORS
(2023)
Article
Ecology
Alice Nadia Ardichvili, Nicolas Loeuille, Vasilis Dakos
Summary: Ecosystems under stress can exhibit abrupt and irreversible responses through tipping points. This study examines the possibility of bistability emerging through evolution by natural selection along resource gradients, using shallow lakes as an example. The model suggests that competitive asymmetries along opposing resource gradients may allow bistability to emerge, but under restrictive conditions, indicating the potential role of eco-evolutionary dynamics in alternative stable states.
Review
Environmental Sciences
Silvia Beatriz Alves Rolim, Bijeesh Kozhikkodan Veettil, Antonio Pedro Vieiro, Anita Baldissera Kessler, Clovis Gonzatti
Summary: Harmful algal blooms, especially cyanobacterial blooms, are occurring in many freshwater lakes worldwide, impacting public health and ecosystem integrity. To mitigate their negative effects, prediction, early detection, and monitoring of algal blooms are crucial. Remote sensing, including different platforms and AI-based algorithms, provides an effective and cost-efficient method for detecting and monitoring these events. Recent advancements in using UAV platforms equipped with sophisticated sensors have revolutionized the detection and monitoring of water quality. Predicting algal blooms based on AI methods will play a key role in mitigating eutrophication in the future.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Food Science & Technology
Maya Stoyneva-Gartner, Katerina Stefanova, Blagoy Uzunov, Mariana Radkova, Georg Gaertner
Summary: This paper presents the first evidence that the planktonic cyanoprokaryote genus Cuspidothrix is a producer of anatoxin A (ATX) in Bulgarian wetlands. PCR results from two summer sampling campaigns in 26 selected lakes and reservoirs revealed the presence of the anaC gene responsible for ATX production in 21 strains of the genus. The genetic diversity detected was consistent with observations made using light microscopy, identifying three species of Cuspidothrix.
Article
Engineering, Environmental
Danni Yuan, Y. Jun Xu, Shiwang Ma, Jingquan Le, Kairui Zhang, Rongli Miao, Siyue Li
Summary: Through a mesocosm experiment, this study found that nitrogen addition and climate warming have a combined effect on the level of CO2 in shallow lakes, indicating that eutrophic shallow lakes would face a double crisis in the future climate. The addition of nitrogen and warming also alter the phytoplankton community structure, suggesting a potential shift in the biological system of shallow lakes under changing climate. Therefore, reducing nitrogen pollution is crucial for the sustainable development of shallow lake systems.
Article
Microbiology
Izabela Mujakic, Adrian- Stefan Andrei, Tanja Shabarova, Livia Kolesar Fecskeova, Michaela M. Salcher, Kasia Piwosz, Rohit Ghai, Michal Koblizek
Summary: Gemmatimonadota bacteria are widely distributed in natural environments, including soil and water bodies. Analysis of metagenomes from five freshwater lakes in central Europe revealed diverse Gemmatimonadota populations, some of which are closely associated with phytoplankton and possess unique mitochondrial assembly genes.
Article
Marine & Freshwater Biology
Maite Colina, Sarian Kosten, Nicolas Silvera, Juan M. Clemente, Mariana Meerhoff
Summary: The study compared CO2 and CH4 fluxes in three subtropical shallow lakes during summer months. Significant differences were found only in CH4 fluxes, with one lake showing CH4 uptake due to low availability of organic matter. In clear-vegetated and phytoplankton-turbid lakes, higher CH4 emissions were observed in littoral zones compared to pelagic zones. Submerged macrophytes dominance in some lakes may decrease carbon emissions to the atmosphere.
Article
Marine & Freshwater Biology
Seyda Erdogan, Meryem Beklioglu, Elena Litchman, Elizabeth T. Miller, Eti E. Levi, Tuba Bucak, Ulku Nihan Tavsanoglu
Summary: This study used SEM to investigate the direct and indirect interactions affecting phytoplankton size structure in 44 lakes in western Turkey, finding that both bottom-up and top-down factors significantly influence phytoplankton community size. Rotifer grazing increased the abundance of large-sized phytoplankton species, such as filamentous and colonial cyanobacteria, while lakes with higher eutrophication levels showed greater size variance in phytoplankton.
JOURNAL OF PLANKTON RESEARCH
(2021)
Article
Marine & Freshwater Biology
Vanessa Virginia Barbosa, Ranielle Daiana dos Santos Silva, Juliana dos Santos Severiano, Mathias Ahii Chia, Jose Etham de Lucena Barbosa
Summary: Investigations on the influence of green microalgae associated with cyanobacteria exposure to macrophytes and the production of cyanotoxins have not been previously explored. The effects of the presence of live plants and extracts of the Egeria densa, on the growth and saxitoxin production of Raphidiopsis raciborskii were investigated in the presence and absence of Chlorella vulgaris. The physical presence of the macrophyte reduced the biovolume of the cyanobacterium and its production of saxitoxins, while cultures exposed to aqueous extract had elevated saxitoxin levels. The green microalgae also increased the amount of cyanotoxins, especially when the macrophyte biomass was low. These findings suggest that E. densa can inhibit the growth of R. raciborskii and the production of cyanotoxins and that the presence of C. vulgaris can alter these processes.
Review
Marine & Freshwater Biology
Irina Izaguirre, Luz Allende, M. Romina Schiaffino
Summary: Antarctic lakes vary in characteristics from ultra-oligotrophic to hypereutrophic, with phytoplankton species adapting through strategies such as mixotrophy and cyst formation. Despite lower algal richness compared to other regions, molecular studies reveal higher biodiversity. Simple food webs dominated by nanoflagellates are characteristic, with contrasting patterns in phytoplankton dynamics between stratified and ice-free lakes.
Article
Multidisciplinary Sciences
Simone R. Cotta, Thierry A. Pellegrinetti, Ana Paula D. Andreote, Juliana S. Costa, Hugo Sarmento, Marli F. Fiore
Summary: Microorganisms in harsh environments adapt by making tradeoffs between nutrient uptake and survival. In soda lakes, microorganisms invest energy in cellular maintenance during the dry season and nutrient uptake during the wet season. Cyanobacterial blooms have a significant impact on biomass and carbon flux.
SCIENTIFIC REPORTS
(2022)
Article
Ecology
Jutta Fastner, Sally Abella, Arni Litt, Giuseppe Morabito, Lajos Voros, Karoly Palffy, Dietmar Straile, Reiner Kuemmerlin, David Matthews, M. Geoff Phillips, Ingrid Chorus
Article
Ecology
Anna Rigosi, Paul Hanson, David P. Hamilton, Matthew Hipsey, James A. Rusak, Julie Bois, Karin Sparber, Ingrid Chorus, Andrew J. Watkinson, Boqiang Qin, Bomchul Kim, Justin D. Brookes
ECOLOGICAL APPLICATIONS
(2015)
Article
Environmental Sciences
Sondra Klitzke, Jendrik Schroeder, Hans-Christoph Selinka, Regine Szewzyk, Ingrid Chorus
SCIENCE OF THE TOTAL ENVIRONMENT
(2015)
Review
Ecology
Stephanie E. Hampton, Aaron W. E. Galloway, Stephen M. Powers, Ted Ozersky, Kara H. Woo, Ryan D. Batt, Stephanie G. Labou, Catherine M. O'Reilly, Sapna Sharma, Noah R. Lottig, Emily H. Stanley, Rebecca L. North, Jason D. Stockwell, Rita Adrian, Gesa A. Weyhenmeyer, Lauri Arvola, Helen M. Baulch, Isabella Bertani, Larry L. Bowman, Cayelan C. Carey, Jordi Catalan, William Colom-Montero, Leah M. Domine, Marisol Felip, Ignacio Granados, Corinna Gries, Hans-Peter Grossart, Juta Haberman, Marina Haldna, Brian Hayden, Scott N. Higgins, Jeff C. Jolley, Kimmo K. Kahilainen, Enn Kaup, Michael J. Kehoe, Sally MacIntyre, Anson W. Mackay, Heather L. Mariash, Robert M. Mckay, Brigitte Nixdorf, Peeter Noges, Tiina Noges, Michelle Palmer, Don C. Pierson, David M. Post, Matthew J. Pruett, Milla Rautio, Jordan S. Read, Sarah L. Roberts, Jacqueline Ruecker, Steven Sadro, Eugene A. Silow, Derek E. Smith, Robert W. Sterner, George E. A. Swann, Maxim A. Timofeyev, Manuel Toro, Michael R. Twiss, Richard J. Vogt, Susan B. Watson, Erika J. Whiteford, Marguerite A. Xenopoulos
Article
Marine & Freshwater Biology
Jessica Ramm, Jacqueline Ruecker, Matthias Knie, Brigitte Nixdorf
JOURNAL OF PLANKTON RESEARCH
(2017)
Article
Environmental Sciences
N. Chernoff, D. J. Hilla, I. Chorus, D. L. Diggs, H. Huang, D. King, J. R. Lang, T. -T. Le, J. E. Schmid, G. S. Travlos, E. M. Whitley, R. E. Wilson, C. R. Wood
JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH-PART A-CURRENT ISSUES
(2018)
Article
Food Science & Technology
Jutta Fastner, Camilla Beulker, Britta Geiser, Anja Hoffmann, Roswitha Kroeger, Kinga Teske, Judith Hoppe, Lars Mundhenk, Hartmud Neurath, Daniel Sagebiel, Ingrid Chorus
Article
Plant Sciences
Sabine Hilt, Marta M. Alirangues Nunez, Elisabeth S. Bakker, Irmgard Blindow, Thomas A. Davidson, Mikael Gillefalk, Lars-Anders Hansson, Jan H. Janse, Annette B. G. Janssen, Erik Jeppesen, Timm Kabus, Andrea Kelly, Jan Koehler, Torben L. Lauridsen, Wolf M. Mooij, Ruurd Noordhuis, Geoff Phillips, Jacqueline Ruecker, Hans-Heinrich Schuster, Martin Sondergaard, Sven Teurlincx, Klaus van de Weyer, Ellen van Donk, Arno Waterstraat, Nigel Willby, Carl D. Sayer
FRONTIERS IN PLANT SCIENCE
(2018)
Article
Marine & Freshwater Biology
Friedrich Recknagel, Tamar Zohary, Jacqueline Ruecker, Philip T. Orr, Christina Castelo Branco, Brigitte Nixdor
Article
Ecology
C. Gerling, F. Waetzold, I Theesfeld, M. Drechsler, B. Nixdorf, J. Isselstein, F. Pirscher, J. Ruecker, A. Sturm
ECOLOGICAL COMPLEXITY
(2019)
Article
Environmental Sciences
Jacqueline Ruecker, Brigitte Nixdorf, Katrin Quiel, Bjoern Grueneberg
Review
Marine & Freshwater Biology
Ingrid Chorus, Elly Spijkerman
Summary: Reynolds elegantly synthesized the impact of limitation and co-limitation on phytoplankton communities, emphasizing that reducing P concentration is sufficient to mitigate eutrophication, but increasing N concentration may also be beneficial in certain circumstances. Research on stoichiometry and co-limitation serves to enhance our understanding of phytoplankton ecophysiology and community ecology.
Editorial Material
Multidisciplinary Sciences
Jef Huisman, Elke Dittmann, Jutta Fastner, J. Merijn Schuurmans, J. Thad Scott, Dedmer B. Van de Waal, Petra M. Visser, Martin Welker, Ingrid Chorus
Summary: Hellweger et al. suggest that phosphorus limitation will lead to higher concentrations of cyanobacterial toxins in lakes. However, their assumptions about molecular, physiological, and ecological mechanisms lack support and contradict other studies. It is concluded that their take-home message about increased toxicity in Lake Erie due to phosphorus load reduction is fundamentally flawed.
Article
Environmental Sciences
Olga Tammeorg, Ingrid Chorus, Bryan Spears, Peeter Noges, Gertrud K. Nurnberg, Priit Tammeorg, Martin Sondergaard, Erik Jeppesen, Hans Paerl, Brian Huser, Jukka Horppila, Tom Jilbert, Agnieszka Budzynska, Renata Dondajewska-Pielka, Ryszard Goldyn, Sina Haasler, Seppo Hellsten, Laura H. Harkonen, Mina Kiani, Anna Kozak, Niina Kotamaki, Katarzyna Kowalczewska-Madura, Silvia Newell, Leena Nurminen, Tiina Noges, Kasper Reitzel, Joanna Rosinska, Jukka Ruuhijarvi, Soila Silvonen, Christian Skov, Tamara Vazic, Anne-Mari Ventela, Guido Waajen, Miquel Lurling
Summary: Sustainable management of lakes requires addressing ecological, economic, and social challenges, with a focus on achieving ecological improvement in a co-beneficial context. In-lake restoration measures can bring rapid ecosystem responses, especially when combined with circular economy practices. However, lake restoration approaches need to be carefully assessed to ensure they effectively address lake-specific problems, are cost-effective, and promote valuable ecosystem services.
WILEY INTERDISCIPLINARY REVIEWS-WATER
(2023)
Article
Marine & Freshwater Biology
Ingrid Chorus, Antje Koehler, Camilla Beulker, Jutta Fastner, Klaus van de Weyer, Tilo Hegewald, Michael Hupfer
Article
Pharmacology & Pharmacy
Mohammadhossein Movassaghghazani, Nazanin Shabansalmani
Summary: The study revealed high levels of AFM1 in both breast milk and powdered milk samples in Tehran, with some samples exceeding the established limits. Therefore, monitoring and regulating toxin levels in these products is crucial for maternal and infant health.
Article
Pharmacology & Pharmacy
Defeng Wen, Wantong Han, Quan Chen, Guanhui Qi, Mengling Gao, Pu Guo, Yu Liu, Zhongyuan Wu, Shulin Fu, Qirong Lu, Yinsheng Qiu
Summary: Luteolin can inhibit FB1-induced intestinal inflammatory injury by inhibiting the activation of NF-kappa B and ERK signaling pathways, according to network pharmacology and in vitro experiments.
