Article
Agronomy
Jessica Roque, Angela Brito, Mariana Rocha, Joao Pissarra, Telma Nunes, Marcia Bessa, Jorge Vieira, Cristina P. Vieira, Paula Melo, Paula Tamagnini
Summary: This study aimed to isolate and characterize cyanobacteria/microalgae from Portuguese soils and evaluate their potential as plant biostimulants, as well as understand their mechanisms of action. The results showed that these microorganisms have biostimulant potential, promoting plant growth and improving physiological productivity under hydroponic conditions, without causing stress. This study is important for understanding the biodiversity of cyanobacteria and microalgae and their potential as biostimulants.
Article
Environmental Sciences
Zhao-Chang Zhang, Peng Gu, Kun-Lun Yang, Min-Xing Zhao, Zhen-Xing Huang, Heng-Feng Miao
Summary: The addition of antioxidants improved the bioconversion efficiency of cyanobacterial blooms by black soldier fly larvae (BSFL) and reduced the toxic effects of exogenous anti-nutrients.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Review
Biotechnology & Applied Microbiology
Adriana L. Alvarez, Sharon L. Weyers, Hannah M. Goemann, Brent M. Peyton, Robert D. Gardner
Summary: Microalgae, as renewable resources, have a wide range of applications in agriculture and can positively impact agricultural productivity. Research not only highlights the potential role of microalgae in agriculture, but also discusses their technological advancements and future research directions.
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2021)
Article
Plant Sciences
Lauri Nikkanen, Daniel Solymosi, Martina Jokel, Yagut Allahverdiyeva
Summary: Cyanobacteria and microalgae have evolved auxiliary electron transport pathways to disperse excess energy and balance the demands of photosynthesis and cell metabolism. These pathways include electron sinks and recycling pathways that help regulate the use of reducing equivalents for energy production.
PHYSIOLOGIA PLANTARUM
(2021)
Review
Biotechnology & Applied Microbiology
Sabrina Swan Souza da Silva, Alexsandra Frazao de Andrade, Milena de Paiva-Cavalcanti, Joao Carlos Monteiro de Carvalho, Daniela de Araujo Viana-Marques, Carolina de Albuquerque Lima Duarte, Ana Lucia Figueiredo Porto, Raquel Pedrosa Bezerra
Summary: Leishmaniasis is a global public health issue with limited treatment options. Microalgae and cyanobacteria show potential as candidates for new drug development, particularly peptides.
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2023)
Article
Agricultural Engineering
Gilver Rosero-Chasoy, Rosa M. Rodriguez-Jasso, Cristobal N. Aguilar, German Buitron, Isaac Chairez, Hector A. Ruiz
Summary: This study evaluated the effect of different carbon and nitrogen sources on the growth and production of Spirulina platensis LEB-52, finding that some sources did not significantly affect biomass and production, highlighting the importance of resource and time savings.
BIORESOURCE TECHNOLOGY
(2022)
Article
Fisheries
Simon Rosenau, Marco Ciulu, Christian Reimer, Alexander Charles Mott, Jens Tetens, Daniel Moerlein
Summary: This study examines the effect of replacing fishmeal with spirulina in the diets of brook trout, rainbow trout, and brown trout. It finds that there are differences in the acceptance and conversion of spirulina among the different species, and that using spirulina as a feed leads to reduced growth and changes in product quality.
AQUACULTURE RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Rihab Hachicha, Fatma Elleuch, Hajer Ben Hlima, Pascal Dubessay, Helene de Baynast, Cedric Delattre, Guillaume Pierre, Ridha Hachicha, Slim Abdelkafi, Philippe Michaud, Imen Fendri
Summary: Microalgae and cyanobacteria are promising and sustainable sources of valuable bioactive metabolites. This review focuses on their classification, taxonomic diversity, and ecological niches. It also summarizes the methods of cultivating and extracting high-value bioactive compounds from these microorganisms using open ponds and photobioreactors. Furthermore, it reviews the various commercial applications of microalgae and cyanobacteria in fields such as food, dietary supplements, feed, cosmetics, and biofuels.
APPLIED SCIENCES-BASEL
(2022)
Article
Biotechnology & Applied Microbiology
Tamara Stela Mendonca Azevedo, Lavinia Kelly Barros Silva, Alvaro Silva Lima, Matheus Mendonca Pereira, Elton Franceschi, Cleide Mara Faria Soares
Summary: This study conducted a computational analysis on the biotransformation of alpha-tocopherol into tocopherol esters, observing the tunnels in enzymatic structures and the energies related to molecule transport. Results revealed variations in the quantity of tunnels in different lipases, with CALB identified as the enzyme most likely to transport substrates during alpha-tocopherol biotransformation.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Review
Marine & Freshwater Biology
Maruthanayagam Veerabadhran, Nagarajan Manivel, Barathkumar Sarvalingam, Boopathi Seenivasan, Hemalatha Srinivasan, MubarakAli Davoodbasha, Fei Yang
Summary: Cyanobacteria are widely distributed in freshwater and marine environments worldwide, and their toxins have harmful effects on health. Microcystins, the toxic metabolites produced by cyanobacteria, cause significant damage to cells, influencing the morphological, biochemical, physiological, and genetic status of the host. Microcystins also have detrimental effects on animals, plants, agriculture, public health, ecotoxicology, and economic consequences. Comprehensive cellular assessment could provide opportunities for therapeutic implications.
AQUATIC TOXICOLOGY
(2023)
Article
Agriculture, Dairy & Animal Science
Colten W. Dornbach, Aubree M. Beenken-Bobb, Daniel W. Shike, Stephanie L. Hansen, Joshua C. McCann
Summary: The objective of this study was to determine the effects of injectable vitamin E (VE) before or after transit on feedlot cattle receiving performance, health, and blood parameters. The results showed that injecting VE can increase serum alpha-tocopherol concentrations, reduce stress, and improve antioxidant status, but it did not improve growth performance and feed intake.
JOURNAL OF ANIMAL SCIENCE
(2023)
Review
Biology
Sergio Gutierrez, Kyle J. Lauersen
Summary: Microalgae and cyanobacteria are considered promising microbes for sustainable production of high-value metabolites using carbon dioxide and sunlight. Genetic engineering concepts have started to emerge, but face challenges in DNA delivery and expression in these hosts. Different DNA delivery methods are being explored for potential applications in engineering photosynthetic microbes.
Article
Immunology
Victor Vaitkevicius-Antao, Jady Moreira-Silva, Isabelle Barreto da Silva Moreira Reino, Maria Gabriella Nunes de Melo, Jose Noe da Silva-Junior, Alexsandra Frazao de Andrade, Paulo Sergio Ramos de Araujo, Raquel Pedrosa Bezerra, Daniela de Araujo Viana Marques, Silvana Ferreira, Romulo Pessoa-e-Silva, Virginia Maria Barros de Lorena, Milena de Paiva-Cavalcanti
Summary: This study evaluated the potential of photo-synthetic microorganism extracts for treating visceral leishmaniasis (VL). The extracts showed low toxicity, leishmanicidal/leishmanistatic activity, and the ability to induce immune responses.
FRONTIERS IN IMMUNOLOGY
(2022)
Article
Biotechnology & Applied Microbiology
Marco Witthohn, Anne-Kathrin Schmidt, Dorina Strieth, Roland Ulber, Kai Muffler
Summary: The sodium salicylate method was adapted for nitrate determination in microtiter plates and its applicability in cyanobacterial mineral media was examined. The assay was suitable for direct detection of nitrate ions up to a concentration of 450 mg L-1 in commonly used media. Additionally, the salicylate method successfully correlated cell growth and nitrate consumption over a 17-day cultivation period in Synechococcus elongatus PCC 6301.
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2023)
Review
Agricultural Engineering
Ranjna Sirohi, Jeong Seop Lee, Byung Sun Yu, Hyejin Roh, Sang Jun Sim
Summary: Global energy consumption has risen dramatically due to industrialization and rapid population growth, resulting in increased CO2 concentration in the atmosphere. Utilizing CO2 for the production of biopolymer PHB has received increasing attention as a sustainable solution, with advances in cheaper renewable feedstocks and genetic engineering for microbial strains playing key roles.
BIORESOURCE TECHNOLOGY
(2021)
Article
Evolutionary Biology
Birgit Gemeinholzer, Miguel Vences, Bank Beszteri, Teddy Bruy, Janine Felden, Ivaylo Kostadinov, Aurelien Mirailes, Tim W. Nattkemper, Christian Printzen, Jasmin Renz, Nataliya Rybalka, Tanja Schuster, Tanja Weibulat, Thomas Wilke, Susanne S. Renner
ORGANISMS DIVERSITY & EVOLUTION
(2020)
Article
Evolutionary Biology
Aurelien Miralles, Teddy Bruy, Katherine Wolcott, Mark D. Scherz, Dominik Begerow, Bank Beszteri, Michael Bonkowski, Janine Felden, Birgit Gemeinholzer, Frank Glaw, Frank Oliver Gloeckner, Oliver Hawlitschek, Ivaylo Kostadinov, Tim W. Nattkemper, Christian Printzen, Jasmin Renz, Nataliya Rybalka, Marc Stadler, Tanja Weibulat, Thomas Wilke, Susanne S. Renner, Miguel Vences
SYSTEMATIC BIOLOGY
(2020)
Article
Plant Sciences
Nataliya Rybalka, Tatiana Mikhailyuk, Tatyana Darienko, Stefan Dultz, Matthias Blanke, Thomas Friedl
Article
Biochemistry & Molecular Biology
Marius L. Theune, Sarah Hildebrandt, Anja Steffen-Heins, Wolfgang Bilger, Kirstin Gutekunst, Jens Appel
Summary: This study presents a new method that allows quantification of electron flow through photosystem I in a photosynthetic organism in absolute terms. By specific in-vivo protocols, the redox states of various components in PSI were discerned, and the validity of the method was confirmed using parallel electron counting experiments. The study suggests that the contribution of cyclic electron transport is twice as high as assumed for plants.
BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS
(2021)
Editorial Material
Plant Sciences
Frauke Pescheck, Eva Rosenqvist, Wolfgang Bilger
PHYSIOLOGIA PLANTARUM
(2021)
Article
Plant Sciences
Nataliya Rybalka, Simon Epkes, K. Mathias Wegner, Rune Michaelis, Karsten Reise
Summary: Vaucheria species in the Wadden Sea are expanding their distribution to lower shores, which indicates recent introductions of marine and brackish Vaucheria species.
Article
Plant Sciences
Monireh Saeid Nia, Urska Repnik, Karin Krupinska, Wolfgang Bilger
Summary: This study reveals the importance of WHIRLY1 in light acclimation, as deficiency in WHIRLY1 disrupts photosynthesis and leaf morphology. WHIRLY1 plays a systemic role in coordinating responses at the chloroplast and leaf morphology levels.
Article
Multidisciplinary Sciences
Sebastiaan W. Rampen, Thomas Friedl, Nataliya Rybalka, Volker Thiel
Summary: Long chain 1,13- and 1,15-diols are lipids found in marine environments and can be used as a proxy for sea surface temperature. This study reveals that early-branching marine eustigmatophytes are the main biological source of these lipids. The Long chain Diol Index (LDI) primarily reflects temperatures from the warmest month. Factors such as diatoms and freshwater input can affect the accuracy of LDI, but can be identified and corrected for.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Food Science & Technology
Inga K. Koopmann, Simone Moller, Clemens Elle, Stefan Hindersin, Annemarie Kramer, Antje Labes
Summary: This study aimed to determine the optimal process for astaxanthin recovery by evaluating different combinations of downstream processing steps. Economic evaluation recommended bead milling and spray-drying prior to supercritical CO2 extraction to achieve maximum astaxanthin recovery.
Article
Plant Sciences
Jay Jethva, Sophie Lichtenauer, Romy Schmidt-Schippers, Anja Steffen-Heins, Gernot Poschet, Markus Wirtz, Joost T. van Dongen, Juergen Eirich, Iris Finkemeier, Wolfgang Bilger, Markus Schwarzlaender, Margret Sauter
Summary: Submergence stress is a growing problem for global agriculture, and the cellular mechanisms for reoxygenation stress management are not fully understood. Our study on Arabidopsis revealed that alternative NADH dehydrogenases (NDs) play a crucial role in the management of anoxia-reoxygenation stress.
Article
Multidisciplinary Sciences
Inga K. Koopmann, Annemarie Kramer, Antje Labes
Summary: To simplify and standardize the measurement of astaxanthin, a new enzymolysis-based method was developed, which can accurately determine different forms of astaxanthin. The method showed high measurement precision in different types of samples, but the optimal concentration for measurement needs to be adjusted based on the sample nature. The method was compared with other determination approaches and the reliability of photometric astaxanthin estimations was assessed. Additionally, suitable sample storage conditions were found to prolong the shelf life of astaxanthin.
Article
Environmental Sciences
Andreas Weber-Theen, Saeed Albaseer, Thomas Friedl, Maike Lorenz, Antje Gutowski, Laszlo Doeren
Summary: Pollution of water bodies by metals remains a threat to ecosystems, and a study examined the effects of six metals on the benthic species Closterium ehrenbergii. The study found that these benthic algae may be more sensitive to metal toxicity compared to standard planktonic species. The toxicity of the metals ranked in descending order from highest to lowest were Cu, Ag, Cd, Ni, Cr, and Zn. This study suggests that C. ehrenbergii can be a valuable addition to ecotoxicological risk assessment.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2023)
Article
Chemistry, Medicinal
Inga K. Koopmann, Bettina A. Muller, Antje Labes
Summary: This study screened 62 strains of Thraustochytrids and found that eight different clades related to Thraustochytic were capable of producing carotenoids and squalene. The importance of glucose and yeast extract in the production was determined through experimental design and growth models. The research provided possible chemotaxonomy and identified promising strains for carotenoid and squalene synthesis.
Article
Plant Sciences
Monireh Saeid Nia, Louis Scholz, Adriana Garibay-Hernandez, Hans-Peter Mock, Urska Repnik, Jennifer Selinski, Karin Krupinska, Wolfgang Bilger
Summary: Barley plants deficient in WHIRLY1 protein showed increased non-radiative energy dissipation, enhanced levels of zeaxanthin and lutonarin, but no changes in alpha-tocopherol and glutathione under high irradiance. These plants exhibited signs of excessive light exposure and had higher levels of xanthophyll cycle pigments and plastoglobules. Lutonarin, a flavonoid with better antioxidant properties than saponarin, accumulated in response to oxidative stress and may have contributed to the survival of these WHIRLY1 deficient plants under high light conditions.
Article
Microbiology
Diego Medina Caro, Lucas Horstmann, Lars Ganzert, Romulo Oses, Thomas Friedl, Dirk Wagner
Summary: Simultaneous extraction of intracellular DNA (iDNA) and extracellular DNA (eDNA) allows for separation of living in situ community (represented by iDNA) from background DNA. We tested different buffers with or without detergent mix (DM) to improve iDNA recovery. Sodium phosphate buffer plus DM significantly improved iDNA recovery, and sodium phosphate plus EDTA improved recovery and allowed extraction from low-biomass rock samples. We recommend a protocol with sodium phosphate and either DM or EDTA for iDNA extraction, and sodium phosphate only for eDNA extraction.
