Cited by An evaluation of statistical models of microcystin detection in lakes applied forward under varying climate conditions

Monitoring of toxic cyanobacterial blooms in Lalla Takerkoust reservoir by satellite imagery and microcystin transfer to surrounding farms DOI

Richard Mugani, Fatima El Khalloufi, Minoru Kasada

et al.

Harmful Algae, Journal Year: 2024, Volume and Issue: 135, P. 102631 - 102631

Published: April 27, 2024

Cyanobacterial harmful algal blooms (CyanoHABs) threaten public health and freshwater ecosystems worldwide. In this study, our main goal was to explore the dynamics of cyanobacterial how microcystins (MCs) move from Lalla Takerkoust reservoir nearby farms. We used Landsat imagery, molecular analysis, collecting analyzing physicochemical data, assessing toxins using HPLC. Our investigation identified two species responsible for blooms: Microcystis sp. Synechococcus strain produced three MC variants (MC-RR, MC-YR, MC-LR), with MC-RR exhibiting highest concentrations in dissolved intracellular toxins. contrast, did not produce any detectable To validate Normalized Difference Vegetation Index (NDVI) results, we utilized limnological including cell counts, quantified MCs freeze-dried bloom samples collected reservoir. study revealed patterns trends proliferation over 30 years presented a historical map area infestation NDVI method. The found that MC-LR accumulates near water surface due buoyancy Microcystis. maximum concentration 160 µgL−1. 4 km downstream reservoir, decreased by factor 5.39 29.63 µgL−1, indicating decrease increasing distance source. Similarly, MC-YR 2.98 same distance. Interestingly, distribution varied depth, dominating at outlet depth 10 m. findings highlight impact nutrient concentrations, environmental factors, transfer processes on distribution. emphasize need effective management strategies minimize toxin ensure safety.

Language: Английский

Citations

Characterization of Five CRISPR Systems in Microcystis aeruginosa FACHB-524 with Focus on the In Vitro Antiviral Activity of One CRISPR System DOI

Mengjing Zeng,

Qi-Ya Zhang,

Fei Ke

et al.

International Journal of Molecular Sciences, Journal Year: 2025, Volume and Issue: 26(4), P. 1554 - 1554

Published: Feb. 12, 2025

Microcystis aeruginosa is an important species causing cyanobacterial blooms, which can be effectively infected and lysed by cyanophages. Several strategies have been developed M. to resist cyanophage infections, including the CRISPR-Cas systems. However, detailed information on systems in rare. In present study, of FACHB-524 were analyzed genome re-sequencing, showed that there are two type I (Cluster 1, I-B1; Cluster 2, I-D) three III-B 3/4/5) cyanobacteria. Further comparison revealed spacer sequences targeted several genes MaMV (M. myovirus) strains. One III 4) was then cloned expressed Escherichia coli BL21 (DE3). Protein purification mass spectrometry identification a Cmr-crRNA effector complex formed E. coli. Subsequently, T4 phage (T4) used infect coli, expressing with or without accessory proteins. The results exhibited anti-phage activity protein Csx1 enhanced immune complex. Collectively, our comprehensively demonstrate CRISPR encoded strain aeruginosa, for first time, one constructed into providing foundation further in-depth analysis

Language: Английский

Citations

Eutrophication of Freshwater and Coastal Ecosystems DOI

Grace M. Wilkinson, R. A. Johnson

Elsevier eBooks, Journal Year: 2024, Volume and Issue: unknown, P. 710 - 721

Published: Jan. 1, 2024

Language: Английский

Citations

Cyanotoxin Analysis of Air Samples from the Great Salt Lake DOI

James S. Metcalf, Sandra Anne Banack, Paul Alan Cox

et al.

Toxins, Journal Year: 2023, Volume and Issue: 15(11), P. 659 - 659

Published: Nov. 15, 2023

The Great Salt Lake in Utah is the largest saline lake Western hemisphere and one of terminal lakes world. Situated at eastern edge Basin, it a remnant freshwater Bonneville whose water level precipitously lowered about 12,000 years ago due to natural break Red Rock pass north. It contains diverse assemblage cyanobacteria which vary spatially dependent on salinity. In 1984, waters occupied 8500 km2. Nearly four decades later, occupy 2500 km2—a reduction surface area 71%. With predominantly westerly winds, there potential for adjacent metropolitan residents east be exposed airborne cyanobacteria- cyanotoxin-containing dust. During summer fall months 2022, air dried sediment samples were collected assessed presence BMAA has been identified as risk factor ALS. Collection equivalent person breathing 1 h resulted isomers being found some samples, along with their lakebed samples. There was no clear relationship between these toxins suggesting that may originate from diffuse rather than point sources. These findings confirm continued low levels constitute an increasing health hazard 2.5 million inhabitants communities Wasatch Front.

Language: Английский

Citations

Interspecific competition enhances microcystin production by Microcystis aeruginosa under the interactive influences of temperature and nutrients DOI

Xiaoyu Cui, Ning Yang, Hongyang Cui

et al.

Water Research, Journal Year: 2024, Volume and Issue: 265, P. 122308 - 122308

Published: Aug. 22, 2024

Language: Английский

Citations

Microcystins bioaccumulate but do not biomagnify in an experimental aquatic food chain DOI

Dani Glidewell, Jessica E. Beyer, K. David Hambright

et al.

Harmful Algae, Journal Year: 2024, Volume and Issue: 141, P. 102768 - 102768

Published: Nov. 23, 2024

Language: Английский

Citations

The Future of Cyanobacteria Toxicity in Estuaries Undergoing Pulsed Nutrient Inputs: A Case Study from Coastal Louisiana DOI

Sibel Bargu, Matthew Hiatt, Kanchan Maiti

et al.

Water, Journal Year: 2023, Volume and Issue: 15(21), P. 3816 - 3816

Published: Oct. 31, 2023

Harmful cyanobacteria blooms (cyanoHABs) are a global phenomenon, especially in calm, warm, and nutrient-rich freshwater estuarine systems. These can produce various potent toxins responsible for animal poisoning human health problems. Nutrient-rich pulsed into estuaries affects turbidity, water temperature, salinity, nutrient concentrations ratios at irregular intervals, creating highly dynamic habitat. However, the underlying processes that lead to selective development of cyanoHABs certain species fate their still uncertain. This paper draws upon rich body research available one such system, Lake Pontchartrain Estuary, Louisiana, generate insights about future directions pulsed-nutrient-delivery estuaries. Toxin-producing river-dominated Louisiana coastal ecosystems have already been documented high concentrations, presenting potential risk as $2.4 billion worth Louisiana’s fish shellfish consumed by millions people throughout US every year. Recent studies shown just north New Orleans, has experiencing cyanoHABs, likely connected combinations (a) interannual variability loading associated with seasonal episodic rainfall, (b) timing, duration, magnitude flood-stage Mississippi River diverted (c) saltwater inputs from tropical storms. It is expected will become more frequent warming climate changes timing river which play dominant role this region. More needed focus on environmental conditions control succession or/and co-existence different toxins, optimally culminating near-term forecasting tool since information critical agencies mitigate or provide early warnings. Toxin forecasts pulsed-nutrient estuaries, including Pontchartrain, could directly inform state municipal exposure risks upcoming toxicity events predicting shifts, potency, toxin modality along freshwater-to-marine continuum while also informing longer-term projection how changing impact frequency potency blooms.

Language: Английский

Citations

An evaluation of statistical models of microcystin detection in lakes applied forward under varying climate conditions DOI

Grace M. Wilkinson, Jonathan A. Walter, Ellen Albright

et al.

Harmful Algae, Journal Year: 2024, Volume and Issue: 137, P. 102679 - 102679

Published: June 17, 2024

Language: Английский

Citations