Int. J. Environ. Res. Public Health 20/05/17 A qPCR-Based Tool to Diagnose the Presence of Harmful Cyanobacteria and Cyanotoxins in Drinking Water Sources. Water Research Foundation via YOUTUBE 16/05/16 Preparing for and Mitigating Algae Blooms and Cyanotoxins — The Utility Perspective. h2o monitoring via YOUTUBE - 2016 – Sélection de conférences traitant de cyanobactéries. CAWTHRON INSTITUTE via VIMEO - 2016 - The science behind toxic algae. SCIENCE DAILY 04/08/16 Toxic blue-green algae adapt to rising CO2. A common type of blue-green algae is finding it easy to adapt to Earth's rising CO2 levels, meaning blue-green algae -- of which there are many toxin-producing varieties -- are even more adept at handling changing climatic conditions than scientists previously supposed.
A team of microbiologists at the University of Amsterdam (UvA) are reporting this finding in the journal PNAS this week, and point here at implications for clean drinking water, swimming safety and freshwater ecosystems. OMS - JANUARY 1999 - Toxic Cyanobacteria in Water: A guide to their public health consequences, monitoring and management. Abstract Identification and quantification of cyanobacteria in water resources is the principal component of cyanotoxin monitoring programmes and can provide an effective early warning system for the development of potentially toxic blooms.
Data on concentrations of total phosphate, nitrate and ammonia are valuable for assessing the potential for cyanobacteria to develop and whether or not nitrogen-fixing species are likely to occur. Whereas methods for these nutrients have been extensively reviewed and internationally harmonised by the International Organization for Standardization (ISO), approaches to the species determination and quantification of cyanobacteria are very variable and can be undertaken at different levels of sophistication.
Algological Studies 126(1):251-265 · April 2008 Review of toxic species of Cyanobacteria in Brazil. Toxic cyanobacteria in Brazil 263 KOMÁREK, J.
& ANAGNOSTIDIS, K. (1999): Cyanoprokaryota, 1: Chroococcales. – In: TTL, H., GÄRTNER, G., HEYNIG, H. & MOLLENHAUER, D. (Eds.): Süsswasser- flora von Mitteleuropa 19 / 1. Gustav Fischer, Jena. Human and Ecological Risk Assessment 7(5):1393-1407 · September 2001 Health effects of Toxin-producing Cyanobacteria: "The CyanoHABs" Abstract Increasingly, harmful algal blooms (HABs) are being reported worldwide due to several factors, primarily eutrophication, climate change and more scientific monitoring.
All but cyanobacteria toxin poisonings (CTPs) are mainly a marine occurrence. DEGRUYTER 10/09/15 Global warming, climate patterns and toxic cyanobacteria. IWA PUBLISHING 13/04/16 Occurrence of toxic cyanobacteria and microcystin toxin in domestic water storage reservoirs, Egypt. EPA - AVRIL 2016 - Poster : RISK LEVELS OF TOXIC CYANOBACTERIA IN PORTUGUESE RECREATIONAL FRESHWATERS. OREGON STATE UNIVERSITY - 2016 - Poster : Cyanobacteria - an underappreciated threat to agriculture? REND. FIS. ACC. LINCEI 01/02/16 Influence of environmental parameters on toxic cyanobacterial bloom occurrence in a Lake of Bangladesh.
MAR. DRUGS - 2015 - Cyanobacterial Toxic and Bioactive Peptides in Freshwater Bodies of Greece: Concentrations, Occurrence Patterns, and Implications for Human Health. CURRENT WORLD ENVIRONMENT 21/08/16 Isolation and Characterization of Two Cyanobacterial Strains Calothrix Sp. and Microchaete Sp. from Rice Fields of Karimganj District, Assam, North East India. Moirangthem Thajamanbi1, Jayashree Rout1* and Nooruddin Thajuddin2 1Department of Ecology and Environmental Science, Assam University, Silchar-788011, Assam, India 2Department of Microbiology, Bharathidasan University, Tiruchirappalli-620024, Tamil Nadu, India.
Corresponding Author Email: email@example.com DOI : FEMS Microbiol Rev. 2012 Sep 15. Cyanobacterial toxins: biosynthetic routes and evolutionary roots. Department of Microbiology, Institute of Biochemistry and Biology, University of Potsdam, Golm, Germany. Microcystins The most frequently reported cyanobacterial toxin is the hepatotoxin microcystin (MCY, Fig. 2).
The general structure of microcystins is cyclo(d-Ala-X-d-MeAsp-Z-Adda-d-Glu-Mdha), in which X and Z represent variable l amino acids. d-MeAsp is d-erythro-ß-methyl-aspartic acid, Mdha is N-methyldehydroalanine, and Adda is (2S,3S,8S,9S)-3-amino-9-methoxy-2,6,8-trimethyl-10-phenyldeca-4,6-dienoic acid (Botes et al., 1984) (Fig. 2). Microcystin is predominantly produced by different genera of freshwater cyanobacteria, including Microcystis, Planktothrix and Anabaena (Fig. 5, Table 1) (Sivonen & Jones, 1999), although it has also been detected in terrestrial strains of the genera Nostoc and Hapalosiphon (Prinsep et al., 1992; Oksanen et al., 2004) or in mats of benthic Phormidium (Izaguirre et al., 2007).
Over 80 variants have been described in the scientific literature, mostly differing in amino acid positions X and Z (Sivonen & Jones, 1999). Figure 2 Nodularin Figure 3 Figure 4. USGS - 2016 - Cyanobacterial Harmful Algal Blooms and U.S. Geological Survey Science Capabilities. CURRENT WORLD ENVIRONMENT 21/08/16 Isolation and Characterization of Two Cyanobacterial Strains Calothrix Sp. and Microchaete Sp. from Rice Fields of Karimganj District, Assam, North East India. J. Plankton Res. (2016) 38 (3): Effects of climate variability on cladoceran zooplankton and cyanobacteria in a shallow subtropical lake. + Author Affiliations ↵*corresponding author: firstname.lastname@example.org Corresponding editor: Roger Harris Received July 14, 2015.
Image credit: Sarah PageANN ARBOR—Efforts to reduce the amount of phosphorus and other nutrients washing off farm fields and into Lake Erie shifted into overdrive after high levels of a bacterial toxin shut down the drinking water supply to more than 400,000 Toledo-area residents last August. Nutrient levels help determine when and where rapid cyanobacterial buildups occur, as well as the size of those blooms. But what factors control their toxicity? The Great Lakes are home to dozens of common cyanobacterial species, but only a few are toxic troublemakers. "We know what causes these blooms: It's nutrients from farm runoff.
Dick said he hopes the study yields insights that can be incorporated into computer-based ecological models used to forecast cyanobacterial blooms. Dick's team was awarded a $250,000 grant from the U-M Water Center for an 18-month project that began May 1, 2014. Toxins 2015, 7(4), 1374-1395 One Health and Cyanobacteria in Freshwater Systems: Animal Illnesses and Deaths Are Sentinel Events for Human Health Risks. 1.
Introduction 1.1. Freshwater Cyanobacteria. Toxins (Basel). 2013 Oct; 5(10): 1896–1917. Cyanobacteria and Cyanotoxins: From Impacts on Aquatic Ecosystems and Human Health to Anticarcinogenic Effects. QUEEN S UNIVERSITY BELFAST 18/03/14 Présentation : Marine and cyanobacterial toxin analysis Progress towards a novel bioanalytical super mouse. Journal of Asia-Pacific Biodiversity Volume 7, Issue 4, 30 December 2014, Diversity and distribution pattern analysis of cyanobacteria isolated from paddy fields of Chhattisgarh, India. Abstract Cyanobacteria have received much attention in soil due to their nitrogen-fixing ability and significant contribution in primary production. The diversity and distribution of unexplored cyanobacteria of Chhattisgarh has been investigated.
INTER NOISE - 2014 - Controlling Cyanobacteria with ultrasound. Current Topics in Public Health 15/05/13 Au sommaire notamment: Cyanobacterial Toxins in Food-Webs: Implications for Human and Environmental Health. Edited by Alfonso J. Wat. Res. Vol. 34, No. 7, pp. 2089±2097, 2000 SAXITOXINS (PSP TOXINS) IN DANISH LAKES. Toxins 2015, 7(4), 1374-1395 One Health and Cyanobacteria in Freshwater Systems: Animal Illnesses and Deaths Are Sentinel Events for Human Health Risks. Wat. Res. Vol. 34, No. 7, pp. 2089±2097, 2000 SAXITOXINS (PSP TOXINS) IN DANISH LAKES. Braz. J. Biol., 2012, vol. 72, no. 1, p. 41-49 Feeding behavior of the invasive bivalve Limnoperna fortunei (Dunker, 1857) under.
BRAZILIAN JOURNAL OF MEDICAL AND BIOLOGICAL RESEARCH - 1999 - Cyanobacterial toxins in Portugal: effects on aquatic animals and. Current Topics in Public Health. LAKESIDE - MARCH 2004 - Toxic cyanobacteria in New Hampshire's lakes and ponds. AMBI AGUA - 2012 - Use of ecological niche modeling as a tool for predicting the potential distribution of Microcystis sp (cyano. Braz. J. Biol. vol.72 no.1 São Carlos Feb. 2012 Feeding behavior of the invasive bivalve Limnoperna fortunei (Dunker, 1857) unde. Feeding behavior of the invasive bivalve Limnoperna fortunei (Dunker, 1857) under exposure to toxic cyanobacteria Microcystis aeruginosa Comportamento alimentar do bivalve invasor Limnoperna fortunei (Dunker, 1857) em exposição à cianobactéria tóxica Microcystis aeruginosa. Mar. Drugs 2012, 10(10), 2181-2207; Marine Cyanobacteria Compounds with Anticancer Properties: A Review on the Implication of Ap. Open AccessThis article isfreely availablere-usable Review 1 Marine and Environmental Research Center—CIIMAR/CIMAR, Porto University, Rua dos Bragas, 289, 4050-123 Porto, Portugal 2 Laboratory of Pharmacology and Cellular Biocompatibility, Faculty of Dental Medicine, Porto University, Rua Dr.
Manuel Pereira da Silva, 4200-393 Porto, Portugal 3 Centre of Health and Environmental Research—CISA, Superior School of Health Technology of Porto, Polytechnic Institute of Porto, Rua Valente Perfeito, 322, 4400-330 Vila Nova de Gaia, Portugal 4 Faculty of Sciences, Porto University, Rua do Campo Alegre, 4169-007 Porto, Portugal 5 Institute for Molecular and Cell Biology—IBMC, Porto University, Rua do Campo Alegre 823, 4150-180 Porto, Portugal.
SCIENCE DAILY 03/07/12 Global Warming Favors Proliferation of Toxic Cyanobacteria. Cyanobacterial populations, primitive aquatic microorganisms, are frequently-encountered in water bodies especially in summer. Their numbers have increased in recent decades and scientists suspect that global warming may be behind the phenomenon, and are particularly concerned by the increase in toxic cyanobacteria, which affect human and animal health. Cyanobacteria are among the most primitive living beings, aged over 3,500 million years old. These aquatic microorganisms helped to oxygenate Earth's atmosphere. At present their populations are increasing in size without stopping. It appears that global warming may be behind the rise in their numbers and may also lead toan increase in the amount of toxins produced by some of these populations.
4-Topo%20toxines-DrHDucobu. Health hazards for terrestrial vertebrates from toxic cyanobacteria in surface water ecosystems. Avertissement de redirection. On the Chemistry, Toxicology and Genetics of the Cyanobacterial Toxins, Microcystin, Nodularin, Saxitoxin and Cylindrospermopsin. Int. J. Environ. Res. Public Health 2012, 9, 807-820; Health Risk Assessment for Cyanobacterial Toxins in Seafood.
Cyanobacteria. By producing oxygen as a gas as a by-product of photosynthesis, cyanobacteria are thought to have converted the early reducing atmosphere into an oxidizing one, which dramatically changed the composition of life forms on Earth by stimulating biodiversity and leading to the near-extinction of oxygen-intolerant organisms. According to endosymbiotic theory, the chloroplasts found in plants and eukaryotic algae evolved from cyanobacterial ancestors via endosymbiosis. Ecology A cyanobacteria bloom near Fiji Aquatic cyanobacteria are known for their extensive and highly visible blooms that can form in both freshwater and marine environments. The blooms can have the appearance of blue-green paint or scum.
Characteristics Cyanobacteria are a photosynthetic nitrogen fixing group that survive in wide variety of habitat, soil and water. Nitrogen fixation Cyanobacteria are arguably the most successful group of microorganisms on earth. Ecology Photosynthesis Antarctic Science 24(3), 229–242 (2012) Cyanobacterial diversity for an anthropogenic impact assessment in the Sør Rondane Mount.