Results 111 to 120 of about 135,022 (273)

Metagenomics reveals spatial variation in cyanobacterial composition, function, and biosynthetic potential in the Winam Gulf, Lake Victoria, Kenya

Applied and Environmental Microbiology
The Winam Gulf in the Kenyan region of Lake Victoria experiences prolific, year-round cyanobacterial harmful algal blooms (cyanoHABs) which pose threats to human, livestock, and ecosystem health.
Lauren N. Hart, Brittany N. Zepernick, Kaela E. Natwora, Katelyn M. Brown, Julia Akinyi Obuya, Davide Lomeo, Malcolm A. Barnard, Eric O. Okech, E. Anders Kiledal, Paul A. Den Uyl, Mark Olokotum, Steven W. Wilhelm, R. Michael McKay, Ken G. Drouillard, David H. Sherman, Lewis Sitoki, James Achiya, Albert Getabu, Kefa M. Otiso, George S. Bullerjahn, Gregory J. Dick   +20 more
doaj   +1 more source

Bacterial Toxins, Current Perspectives

, 2020
Toxins are the major pathogenicity factors produced by numerous bacteria involved in severe diseases in humans and animals. Certain pathogenic bacteria synthesize only one toxin which is responsible for all the symptoms and outcome of the disease.
Michel R. Popoff
core   +1 more source

Food selectivity and grazing responses of the Lawnmower Blenny (Salarias fasciatus) to nutrient enrichment and ammonia exposure

Journal of Fish Biology, EarlyView.
Abstract Nutrient enrichment can alter the nutritional quality of the epilithic algal matrix (EAM) and modify the feeding environment of herbivorous and detritivorous reef fishes. However, wastewater inputs can also elevate ammonia concentrations, which may disrupt fish physiological processes, yet the effects of ammonia exposure on grazing activity ...
Ramón Alejandro Plazas‐Gómez, Sonia Bejarano, Sara Catalina Rodríguez‐Díaz, Marie Fujitani   +3 more
wiley   +1 more source

Pejerrey (Odontesthes bonariensis) Under Siege: Main Infectious Diseases and Their Role in Aquaculture and Wild Populations Amidst Environmental Change

Journal of Fish Diseases, Volume 48, Issue 4, April 2025.
ABSTRACT The pejerrey (Odontesthes bonariensis) is a key species for recreational and commercial fisheries in Argentina and holds significant aquaculture potential. It has been introduced to various countries worldwide, including Japan, where intensive aquaculture has developed.
Aarón Torres‐Martínez, Miguel Mancini, Fabian Grosman, Gustavo Manuel Somoza, Carlos Augusto Strüssmann   +4 more
wiley   +1 more source

Cyanobacterial toxins in aquaculture

, 2014
Aquaculture and cyanobacteria are not usually discussed in the same forum even though it is an important topic and the relationship is at an important interface.
Smith, Paul T. (R8607), Paul T. Smith
core   +1 more source

Melanoma and Other Melanistic Lesions in Brown Bullhead Ameiurus nebulosus From Waterbodies in the Northeastern United States and Canada: Identification of Risk Factors

Journal of Fish Diseases, EarlyView.
ABSTRACT Melanistic lesions, including non‐raised black areas due to proliferations of melanocytes and melanomacrophages in the dermis and epidermis, as well as raised black areas consistent with melanoma, are described in brown bullhead (BBH) Ameiurus nebulosus from three water bodies in the northeastern United States and Quebec, Canada.
Vicki S. Blazer, Peter Emerson, Matthew Bodnar, Thomas Jones, David R. Russell, Matthew Pehrson, Cheyenne R. Smith, Danielle Cleveland, Mark J. Henderson, Patricia M. Mazik   +9 more
wiley   +1 more source

Lesser-Known Cyanotoxins: A Comprehensive Review of Their Health and Environmental Impacts

Toxins
Cyanobacteria, also known as blue-green algae, are a diverse phylum of photosynthetic, Gram-negative bacteria and one of the largest microbial taxa. These organisms produce cyanotoxins, which are secondary metabolites that can have significant impacts on
Molham Al Haffar, Ziad Fajloun, Sami Azar, Jean-Marc Sabatier, Ziad Abi Khattar   +4 more
doaj   +1 more source

Antibodies and Vaccines Against Botulinum Toxins: Available Measures and Novel Approaches

, 2019
International audienceBotulinum neurotoxin (BoNT) is produced by the anaerobic, Gram-positive bacterium Clostridium botulinum. As one of the most poisonous toxins known and a potential bioterrosism agent, BoNT is characterized by a complex mode of action
Rasetti-Escargueil, Christine, Michel R. Popoff, Popoff, Michel, Christine Rasetti-Escargueil   +3 more
core   +1 more source

Earlier spring may explain dominance of the slow‐growing dinoflagellate Naiadinium polonicum over the cyanobacterium Microcystis during a heatwave

Journal of Phycology, EarlyView.
Abstract Global warming and extreme weather events have been linked to a rise in cyanobacterial blooms, which threaten water quality and ecosystem services. However, during an extreme hot and dry summer, Microcystis was outcompeted by a dinoflagellate, Naiadinium polonicum, in a drinking water lake in southern Sweden.
Sandra Rabow, Shenghe Cai, Per Carlsson, Karin Rengefors   +3 more
wiley   +1 more source

Stability of cyanotoxins, microcystin-LR, microcystin-RR and nodularin in seawater and BG-11 medium of different salinity

Oceanologia, 2001
Microcystins and nodularin are potent hepatotoxins produced by fresh and seawater cyanobacteria. The persistence of three hepatotoxins - microcystin-LR, microcystin-RR and nodularin - was investigated in sterile BG-11 medium of different salinity and in ...
Hanna Mazur, Marcin Pliñski
doaj