Article
Environmental Sciences
Naila-Yasmine Benayache, Fatima-Zohra Afri-Mehennaoui, Saliha Kherief-Nacereddine, Bao Vo-Quoc, Kateryna Hushchyna, Tri Nguyen-Quang, Noureddine Bouaicha
Summary: From July 2017 to June 2018, a widespread bloom of the cyanobacterial species Planktothrix sp. occurred in the Beni-Haroun Reservoir in Algeria, resulting in a massive fish death. The study found high concentrations of microcystins (MC) in the water samples and in the tissues of the dead fish, suggesting a potential link between the cyanotoxins and the fish mortality.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Xiaodi Duan, Chiqian Zhang, Ian Struewing, Xiang Li, Joel Allen, Jingrang Lu
Summary: This study evaluated the efficacy of an early-warning system that uses cyanotoxin-encoding genes to predict harmful cyanobacterial blooms in Harsha Lake, Ohio. The results showed that the abundances and transcript levels of cyanotoxin-encoding genes were significantly correlated with total cyanotoxin concentrations and accurately predicted cyanotoxin production. This early-warning system can be a useful tool for lake managers in predicting and preventing harmful cyanobacterial blooms.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Plant Sciences
Forrest W. Lefler, David E. Berthold, H. Dail Laughinghouse
Summary: The study focused on sampling and studying benthic cyanobacterial mats from select locations in South Florida, revealing new cyanobacterial taxa, such as the new genus Affixifilum and new species A. floridanum and N. biscaynensis.
JOURNAL OF PHYCOLOGY
(2021)
Article
Food Science & Technology
Corentin Fournier, Eva Riehle, Daniel R. Dietrich, David Schleheck
Summary: This study characterized the deep water red pigment maxima (DRM) found in Lake Constance as cyanobacterial blooms, mainly contributed by Planktothrix spp. with the presence of phycoerythrin-rich Synechococcus taxa. Toxic microcystins were detected in the DRM at concentrations of <= 1.5 ng/L on individual sampling days. Analysis of fluorescence probe measurements from the past decade revealed the presence of DRM in Lake Constance at least since 2009, emphasizing the need for continuous monitoring and further studies on the competition of different cyanobacterial taxa.
Article
Marine & Freshwater Biology
Tamara M. Stuij, Daniel F. R. Cleary, Newton C. M. Gomes, Rahul Mehrotra, Petra M. Visser, Arjen G. C. L. Speksnijder, Bert W. Hoeksema
Summary: This study reveals the bacterial diversity and composition of different mat morphotypes, identifies the most abundant community members and closely related organisms, and assesses the predictors of bacterial composition. The results show that the bacterial communities consist of a diverse and variable consortium, with mat morphotype, substrate type, and geographic location explaining only a small part of the total variation in composition.
Article
Microbiology
Sophi Marmen, Eduard Fadeev, Ashraf Al Ashhab, Ayana Benet-Perelberg, Alon Naor, Hemant J. Patil, Eddie Cytryn, Yehudit Viner-Mozzini, Assaf Sukenik, Maya Lalzar, Daniel Sher
Summary: Aquaculture facilities such as fishponds have a significant anthropogenic impact on freshwater ecosystems, with high fish biomass leading to increased nutrient load and potential effects on microbial communities and fish health. In an interconnected aquaculture system, natural seasonal cycles have a greater influence on the structure of aquatic bacterial communities compared to aquaculture-related factors. Recurring cyanobacterial blooms in response to different nutrient ratios, possibly influenced by fish feed input magnitude, were observed in the system.
FRONTIERS IN MICROBIOLOGY
(2021)
Article
Engineering, Marine
Yinyin Deng, Cuicui Tian, Chuanming Hu, Guangping Xu, Lien Yang, Qinqin Lu, Wei Zhou
Summary: The germplasm bank of economic algae serves as a biological insurance for the cultivation industry, but the red algal germplasm is easily contaminated by filamentous cyanobacteria, hampering its growth. This study utilized cytological observations, 16S rRNA gene analysis, and microscopy to investigate the contamination pattern. It was found that the filamentous cyanobacteria mainly originated from the red algal thallus or surrounding seawater.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2022)
Article
Microbiology
Hwee Sze Tee, Susanna A. Wood, Keith Bouma-Gregson, Gavin Lear, Kim M. Handley
Summary: Comparative analysis revealed significant genetic differences between toxic and nontoxic Microcoleus strains, with toxic strains potentially having reduced metabolic flexibility and dependence on coexisting nontoxic strains. The study sheds light on metabolic and evolutionary discrepancies between toxic and nontoxic Microcoleus, aiding in the prediction and management of aquatic blooms.
Article
Engineering, Environmental
Kevin J. Erratt, Irena F. Creed, Erika C. Freeman, Charles G. Trick, Judy Westrick, Johnna A. Birbeck, L. Cynthia Watson, Arthur Zastepa
Summary: The risk of human exposure to cyanotoxins is influenced by the location of toxin-producing cyanobacteria in waterbodies. A case study of Sunfish Lake in Ontario, Canada, revealed a deep cyanobacteria layer with toxins. Multiple toxigenic cyanobacteria species were identified in the deep layer. Monitoring the entire water column can help identify waterbodies at elevated risk for deep cyanobacteria layers to protect drinking water supplies.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Plant Sciences
Yi Wang, David E. Berthold, Jing Hu, Forrest W. Lefler, I-Shuo Huang, H. Dail Laughinghouse
Summary: Benthic cyanobacterial mats (BCMs) are natural phenomena in marine environments, and their occurrences have increased due to nutrient loading and climate change. One specific cyanobacterial genus, Roseofilum, dominates the microbial mats associated with black band disease (BBD) in corals. Through isolation and identification, four novel species of Roseofilum were discovered, with one species potentially producing microcystin.
JOURNAL OF PHYCOLOGY
(2023)
Article
Environmental Sciences
Olivier Laroche, Sonnich Meier, Svein A. Mjos, Nigel Keeley
Summary: This study examined the impact of salmon farming on several epibenthic suspension-feeders and identified potential molecular indicators of this impact. The results showed species-specific effects and differences in fatty acid profiles and host microbiome communities.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Biodiversity Conservation
Denis Davydov, Anna Vilnet, Irina Novakovskaya, Elena Patova
Summary: The strains of Drouetiella species from a terrestrial biotope in the Arctic and Subarctic areas of European Russia were isolated and characterized using an integrative approach. The study showed the morphological plasticity of Drouetiella species and identified a new taxon. The analysis of 16S-23S ITS rRNA sequences revealed differences in length and nucleotide composition, affecting the hypothetical secondary structures of certain helices.
Article
Microbiology
Farooq Inam, Abdul S. Mumtaz, Muhammad Kaleem, Imran Sajid
Summary: Two diverse taxa of true branching Nostocales were discovered from the oasis of Cholistan, Pakistan. They showed different morphological traits and potential antibacterial, cytotoxic, and anticancer effects.
JOURNAL OF BASIC MICROBIOLOGY
(2022)
Article
Plant Sciences
Javier Carmona Jimenez, Angela Caro Borrero, Itzel Becerra-Absalon, Elvira Perona Urizar, Kenia Marquez Santamaria, Pilar Mateo Ortega
Summary: This study describes two new Nostoc species, N. montejanii and N. tlalocii, based on a polyphasic approach that combines morphological, ecological, and genetic characteristics. The two new species showed clear differences in their habitat preferences and possesses distinct morphological features. The 16S rRNA gene sequences and phylogenetic analyses revealed their close relationship to the Nostoc genus.
JOURNAL OF PHYCOLOGY
(2023)
Article
Biotechnology & Applied Microbiology
Rameshwari Heisnam, Ojit Singh Keithellakpam, Vimi Kshetrimayum, Pulok K. Mukherjee, Nanaocha Sharma
Summary: In this study, high-purity phycocyanin was extracted from cyanobacteria in the northeastern India and found to have potent anti-proliferative activity and apoptotic induction in breast cancer cells.
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2022)
Article
Ecology
Christine H. Bylenga, Vonda J. Cummings, Ken G. Ryan
MARINE ECOLOGY PROGRESS SERIES
(2015)
Article
Ecology
Christine H. Bylenga, Vonda J. Cummings, Ken G. Ryan
MARINE ECOLOGY PROGRESS SERIES
(2015)
Article
Biodiversity Conservation
John Tibby, Cameron Barr, Francesca A. McInerney, Andrew C. G. Henderson, Melanie J. Leng, Margaret Greenway, Jonathan C. Marshall, Glenn B. McGregor, Jonathan J. Tyler, Vivienne McNeil
GLOBAL CHANGE BIOLOGY
(2016)
Article
Environmental Sciences
Glenn B. Mcgregor, Jonathan C. Marshall, Jaye S. Lobegeiger, Dean Holloway, Norbert Menke, Julie Coysh
ENVIRONMENTAL MANAGEMENT
(2018)
Article
Marine & Freshwater Biology
Glenn B. McGregor, Barbara C. Sendall
Article
Ecology
David J. Burr, Andrew Martin, Elizabeth W. Maas, Ken G. Ryan
Article
Marine & Freshwater Biology
Andrew McMinn, Marius N. Mueller, Andrew Martin, Sarah C. Ugalde, Shihong Lee, Katerina Castrisios, Ken G. Ryan
Article
Geography, Physical
Cameron Barr, John Tibby, Patrick T. Moss, Galen P. Halverson, Jonathan C. Marshall, Glenn B. McGregor, Erinne Stirling
QUATERNARY INTERNATIONAL
(2017)
Article
Ecology
Rebecca O. M. Cowie, Gareth J. Williams, Elizabeth W. Maas, K. Matt Voyles, Ken G. Ryan
AQUATIC MICROBIAL ECOLOGY
(2014)
Article
Plant Sciences
Glenn B. McGregor, Barbara C. Sendall
JOURNAL OF PHYCOLOGY
(2015)
Article
Ecology
Katie A. Brasell, Mark W. Heath, Ken G. Ryan, Susanna A. Wood
Article
Multidisciplinary Sciences
Christine H. Bylenga, Vonda J. Cummings, Ken G. Ryan
Article
Environmental Sciences
M. W. Heath, S. A. Wood, K. A. Brasell, R. G. Young, K. G. Ryan
RIVER RESEARCH AND APPLICATIONS
(2015)
Article
Plant Sciences
Glenn B. McGregor, Barbara C. Sendall
AUSTRALIAN SYSTEMATIC BOTANY
(2017)
Article
Microbiology
Mark Heath, Susie A. Wood, Roger G. Young, Ken G. Ryan
FEMS MICROBIOLOGY ECOLOGY
(2016)
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.