Results 71 to 80 of about 5,902 (212)

The paradox of cyanotoxins: from natural toxins to biotechnological resources

open access: yesEuchembioj Reviews
Cyanotoxins are highly toxic secondary metabolites produced by cyanobacteria that decrease water quality and exert a wide range of harmful effects on many organisms, including humans, through the food web.
Dilek Sever Kaya
doaj   +1 more source

Nitrogen and Phosphorus Controls on Phytoplankton Growth and Bacterioplankton Communities in Wetland Impoundments

open access: yesFreshwater Biology, Volume 71, Issue 8, August 2026.
ABSTRACT Nutrient enrichment in shallow lakes and ponds can shift systems from clear water, macrophyte dominance to turbid, phytoplankton dominance. Because the identity and threshold of the limiting nutrients vary among sites, system‐specific evidence is needed to guide water quality management. We conducted 3‐day in situ nutrient‐enrichment bioassays
Rachel. L. Wood   +5 more
wiley   +1 more source

Optimizing a long‐term monitoring strategy to track emerging cyanobacterial blooms in a Great Lakes estuary

open access: yesJournal of Phycology, Volume 62, Issue 4, Page 1264-1296, August 2026.
Abstract Cyanobacterial harmful algal blooms (cHABs) are increasingly frequent and severe globally. Recently, the St. Louis River Estuary (SLRE) has experienced numerous cHABs, but the locations, timing, and environmental conditions associated with them are unknown.
Peter A. Birschbach   +3 more
wiley   +1 more source

Cyanotoxins: A Poison that Frees Phosphate [PDF]

open access: yesCurrent Biology, 2010
Autotrophic organisms obtain phosphorus from the environment by secreting alkaline phosphatases that act on esters, resulting in inorganic phosphate that is then taken up. New work shows that the cyanobacterium Aphanizomenon ovalisporum obtains inorganic phosphate by secreting the cyanotoxin cylindrospermopsin, which induces alkaline phosphatase in ...
openaire   +2 more sources

A Perspective on Removal of Cyanotoxins from Water Through Advanced Oxidation Processes

open access: yesGlobal Challenges, 2023
This perspective discusses the challenges associated with the removal of cyanotoxins from raw water sources for drinking water treatment and the emergence of sulfate radical‐based advanced oxidation processes (SR‐AOPs) as an effective treatment technique.
Shilpi Verma   +2 more
doaj   +1 more source

Recent Advances in the Use of Natural Deep Eutectic Solvents for Natural Product Sample Preparation: Focus on Purification, Characterization, and Sustainability

open access: yesJournal of Separation Science, Volume 49, Issue 7, July 2026.
ABSTRACT This review examines recent advances in the use of natural deep eutectic solvents (NaDES) for natural product sample preparation, with emphasis on extraction, purification, analytical compatibility, and sustainability. NaDES emerge as versatile, tunable, and biocompatible media that enhance the recovery and stability of diverse phytochemicals ...
Valeria Cedeño‐Fierro   +3 more
wiley   +1 more source

The energetic cost of facing cyanotoxins: a case study on Daphnia magna

open access: yes, 2022
International audienceUnder the effects of global change, toxic cyanobacterial proliferations increase and subsequently threaten freshwater ecosystems and the services they provide. Zooplankton consumers, a key trophic level of freshwater ecosystems, are
Koussoroplis, Apostolos-Manuel   +3 more
core   +1 more source

Analysis, levels and seasonal variation of cyanotoxins in freshwater ecosystems [PDF]

open access: yes, 2020
Nutrient over-enrichment in freshwater environments, together with the on-going climate change, favour the toxin-producing cyanobacteria bloom. Human health hazard may arise from drinking contaminated water.
Filatova, Daria   +4 more
core   +1 more source

Shifting ice phenology and ice extent linked to harmful algal bloom severity

open access: yesLimnology and Oceanography, Volume 71, Issue 7, July 2026.
Abstract Ice cover on lakes can have far‐reaching and profound effects on ecosystem structure and function. However, the duration and spatial extent of ice cover is changing rapidly with warming aquatic ecosystems. This loss of ice creates an urgent need to understand how lakes will function without ice cover, both during the ice‐on and ice‐free season,
Claire M. Stevens   +1 more
wiley   +1 more source

Ecological and molecular investigations of cyanotoxin production [PDF]

open access: yesFEMS Microbiology Ecology, 2001
Cyanobacteria, broadly classified as oxygenic phototrophs containing chlorophyll- a and accessory pigments, are among the oldest life forms on earth. They may be unicellular, colonial or filamentous, with cell sizes varying from less than 2 μm to 40 μm in diameter. They may live as symbionts with plants and fungi, in the benthos or in the water column.
M, Kaebernick, B A., Neilan
openaire   +2 more sources

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