Results 61 to 70 of about 7,334 (179)

Intra‐Annual Chlorophyll‐a Dynamics Under Hydroclimatic Extremes Derived From a 44‐Year Baseline: Insights From a Temperate River System (Nakdong River Basin, South Korea)

Water Resources Research, Volume 62, Issue 6, June 2026.
Abstract Understanding how drought affects phytoplankton dynamics is critical for developing early warning systems. Using standardized drought indices that capture both hydrometeorological extremes, we investigated how hydrological anomalies modulate intra‐annual chlorophyll‐a (Chla) concentrations, a proxy for phytoplankton biomass, in South Korea's ...
Pamela Sofia Fabian, YoonKyung Cha, Hyun‐Han Kwon   +2 more
wiley   +1 more source

Rapid Quantification of Bacteriophages of Mycobacterium spp. and Related Genera in Aquatic Systems

Environmental Microbiology, Volume 28, Issue 6, June 2026.
Two qPCR assays (SYBR Green and TaqMan) targeting the major capsid protein gene of Myoviridae phages infecting Mycobacterium, Rhodococcus and Gordonia spp. were developed and optimised, enabling sensitive detection of these phages in freshwater systems.
Hanieh Shakeri Moghaddam, S. Jane Fowler
wiley   +1 more source

Phytoplankton growth and potential cyanotoxin production differ in response to nitrogen and phosphorus amendments in late summer communities from Kabetogama Lake (Minnesota, United States)

Journal of Phycology, Volume 62, Issue 3, Page 883-903, June 2026.
Abstract Cyanotoxins such as microcystin (MC), cylindrospermopsin, and saxitoxin are secondary metabolites that are rich in nitrogen (N). Most cyanobacteria grow best on reduced inorganic N (ammonium, NH4), but when NH4 is absent, cyanobacteria can activate physiological pathways to process other N forms (e.g., nitrate; NO3).
James H. Larson, Ryan P. Maki, Sean W. Bailey, Victoria G. Christensen, Keith A. Loftin, Erin A. Stelzer, James C. Smith, Seth A. McWhorter   +7 more
wiley   +1 more source

Mitomycin C eliminates cyanobacterial transcription without detectable prophage induction in a Microcystis-dominated harmful algal bloom in Lake Erie

Microbiology Spectrum
Although evidence indicates that viruses are important in the ecology of Microcystis spp., many questions remain. For example, how does Microcystis exist at high, bloom-associated cell concentrations in the presence of viruses that infect it?
Robbie M. Martin, Elizabeth R. Denison, Helena L. Pound, Ellen A. Barnes, Justin D. Chaffin, Steven W. Wilhelm   +5 more
doaj   +1 more source

Variations of bacterial community during the decomposition of Microcystis under different temperatures and biomass

BMC Microbiology, 2019
Background The decomposition of Microcystis can dramatically change the physicochemical properties of freshwater ecosystems. Bacteria play an important role in decomposing organic matters and accelerating the cycling of materials within freshwater lakes.
Shuren Wang, Dayong Zhao, Jin Zeng, Huimin Xu, Rui Huang, Congcong Jiao, Lin Guo   +6 more
doaj   +1 more source

The Range of the Colonial Microcystis’ Biomass for Shift to Diatom Aggregates Under Aeration Mixing and Low Light

Diversity
In order to investigate non-cyanobacteria dominance succession from Microcystis blooms, particularly to diatom dominance, an experiment using varying colonial Microcystis biomasses expressed as bulk concentrations of 2.0, 4.0, 6.0, 8.0, 10.0, 12.0, 14.0,
Xiaodong Wang, Xuan Che, Xingguo Liu, Xinfeng Li, Xiaolong Chen, Yiming Li, Lin Zhu   +6 more
doaj   +1 more source

Aerobic anoxygenic phototrophs play important roles in nutrient cycling within cyanobacterial Microcystis bloom microbiomes

Microbiome
Background During the bloom season, the colonial cyanobacterium Microcystis forms complex aggregates which include a diverse microbiome within an exopolymer matrix.
Haiyuan Cai, Christopher J. McLimans, Helong Jiang, Feng Chen, Lee R. Krumholz, K. David Hambright   +5 more
doaj   +1 more source

Dynamics of Microcystis surface scum formation under different wind conditions: the role of hydrodynamic processes at the air-water interface

Frontiers in Plant Science
Due to climate change, Microcystis blooms occur at increasing frequencies in aquatic ecosystems worldwide. Wind-generated turbulence is a crucial environmental stressor that can vertically disperse the Microcystis surface scum, reducing its light ...
Huaming Wu, Xingqiang Wu, Lorenzo Rovelli, Lorenzo Rovelli, Andreas Lorke   +4 more
doaj   +1 more source

Performance and characterization of snail adhesive mucus as a bioflocculant against toxic Microcystis

Ecotoxicology and Environmental Safety
Toxic Microcystis blooms are widespread in aquatic bodies, posing major threats to aquatic and human life. Recently, bioflocculants have attracted considerable attention as a promising biomaterial for Microcystis management. In search of a novel organism
Qin Peng, Xinyue Gong, Ruixin Jiang, Na Yang, Ruiting Chen, Binglin Dai, Rui Wang   +6 more
doaj   +1 more source

Colonial Microcystis’ biomass affects its shift to diatom aggregates under aeration mixing

Scientific Reports
The effect of hydrodynamic mixing on controlling Microcystis blooms or changing the algal community to diatom dominance has been widely studied; however, the effects of colonial Microcystis biomass on the development of the algal community are poorly ...
Xiaodong Wang, Xuan Che, Jian Zhou, Boqiang Qin, Xiangming Tang, Ziqiu Liu, Xingguo Liu   +6 more
doaj   +1 more source