Results 51 to 60 of about 35,915 (272)

Toxic concentrations of metronidazole to Microcystis protocystis [PDF]

Brazilian Journal of Biology, 2014
Antimicrobials are among the most commonly used drugs and have become a class of contaminants with great environmental importance. Metronidazole is an antimicrobial used for the therapeutic management of several human diseases. The toxicity of antimicrobials on aquatic species may affect sensitive microorganisms and reduce metabolic processes ...
Magalhães, SMS, Brêtas, CM, Brêtas, JM, Pianetti, GA, Franco, MW, Barbosa, FAR   +5 more
openaire   +5 more sources

Cyanopeptide Mixtures Induce Variable Synergistic and Antagonistic Effects Across Diverse Human Cell Lines

Environmental Toxicology, EarlyView.
ABSTRACT Cyanobacterial harmful algal blooms (cyanoHABs) threaten human, animal, and ecosystem health and safety through production of toxic secondary metabolites. Microcystis, a cosmopolitan bloom‐forming cyanobacterial genus, is well‐known for producing hepatotoxic microcystins (MCs), but it can produce many other bioactive cyanopeptides, such as ...
Lauren N. Hart, Katherine L. Lev, Sierra Hefferan, Sanduni H. Premathilaka, Sharmila I. Thenuwara, Dragan Isailovic, David H. Sherman, Gregory J. Dick   +7 more
wiley   +1 more source

From colonial clusters to colonial sheaths: Imaging flow cytometry analysis of Microcystis morphospecies dynamics in mesocosm and links to CyanoHABs management

Ecological Indicators
The alarming increase in the frequency of blooms of Microcystis in freshwater lakes and reservoirs occurs worldwide, with major implications for their ecosystem functioning and water quality.
Adina Zhumakhanova, Yersultan Mirasbekov, Ayagoz Meirkhanova, Dmitry V. Malashenkov, Thomas A. Davidson, Eti Ester Levi, Erik Jeppesen, Natasha S. Barteneva   +7 more
doaj   +1 more source

Occurrence and Distribution of Cyanobacteria and their Toxins in Silver Lake, New Hampshire [PDF]

, 2008
A study of Silver Lake, NH was performed as part of a 5-lake assessment of cyanobacteria prevalence and distribution. Multi-parameter fluorescence probe measurements of chlorophyll a and cyanobacteria concentrations (PC, phycocyanin fluorescence) were ...
Morison, Françoise
core   +1 more source

Drinking Water Quality Regulations: A Contrast Between Germany and Latin America

Environmental Quality Management, Volume 35, Issue 3, Spring 2026.
ABSTRACT This article investigates the differences among drinking water quality standards adopted in Latin American countries, Mexico, Cuba, and the European Union, considering the growing challenge of ensuring safe drinking water in a context marked by environmental pressures, climate change, and the occurrence of emerging contaminants. The study aims
Eduardo Saldanha Vogelmann, Juliana Prevedello, Gizachew Ayalew Tiruneh   +2 more
wiley   +1 more source

Cyanobacterial Bloom Formation by Enhanced Ecological Adaptability and Competitive Advantage of Microcystis—Non-Negligible Role of Quorum Sensing

Microorganisms
Microcystis-dominated cyanobacterial blooms (MCBs) frequently occur in freshwaters worldwide due to massive Microcystis colony formation and severely threaten human and ecosystem health.
Ziqing Zhang, Jieming Li
doaj   +1 more source

Flexibility of Microcystis Overwintering Strategy in Response to Winter Temperatures

Microorganisms, 2021
Microcystis is one of the most common bloom-forming cyanobacteria in freshwater ecosystems throughout the world. However, the underlying life history mechanism and distinct temporal dynamics (inter- and intra-annual) of Microcystis populations in ...
Pei Cai, Qijia Cai, Feng He, Yuhong Huang, Cuicui Tian, Xingqiang Wu, Chunbo Wang, Bangding Xiao   +7 more
doaj   +1 more source

New Zealand Guidelines for cyanobacteria in recreational fresh waters: Interim Guidelines [PDF]

, 2009
This document is divided into four main sections, plus 14 appendices. Section 1. Introduction provides an overview of the purpose and status of the document as well as advice on who should use it. Section 2.
Hamilton, David P., Paul, Wendy J., Safi, Karl A., Williamson, Wendy M., Wood, Susanna A.   +4 more
core   +1 more source

Impact of Organic and Inorganic Feeding Management on Water Quality, Growth Performance and Plankton Communities in Pond‐Based Polyculture of Major and Chinese Carp Species

Aquaculture, Fish and Fisheries, Volume 6, Issue 1, February 2026.
ABSTRACT The current study assessed the impact of organic and inorganic feeding management on water quality, growth performance and plankton communities in a pond‐based polyculture system over 9 months, using three treatments: Ctrl (C), organic feeding (T1) and inorganic feeding (T2). Significant differences were observed in electrical conductivity (EC)
Muhammad Inayat, Farzana Abbas, Muhammad Hafeez‐ur‐Rehman, Muhammad Akmal, Shahid Sherzada, Sohail Ahmad, Gianfranco Santovito   +6 more
wiley   +1 more source

The accumulation of the cyanobacterial toxin, microcystin, in cherry tomato (Solanum lycopersicum) and bush bean (Phaseolus vulgaris) plants [PDF]

, 2013
We aimed to develop a high-sensitivity method to detect microcystin toxins in fruit tissue and to determine if irrigation with water containing toxic cyanobacteria may result in accumulation of microcystin toxins in fruit tissue and affect fruit ...
Lefebvre, Bethany R.
core   +1 more source