Results 21 to 30 of about 34,854 (271)

The Unusual Reddish-Bloom Appearance in a Freshwater Fishpond at Kingolwira National Fish Farming Center, Morogoro, Tanzania

International Journal of Environment, 2020
The study aimed to examines a case of what constituted the uncommonly reddish-bloom appearance in the fishponds during the dry season (September 2018) at Kingolwira National Fish Farming Center located in Morogoro, Tanzania.
Offoro N. Kimambo, Jabulani R. Gumbo, Titus A.M Msagati, Hector Chikoore   +3 more
doaj   +1 more source

Effect of Cell Density on the Removal of Microcystis by Coagulation

대한환경공학회지, 2020
Objectives: This study evaluated the removal of Microcystis by coagulation in raw waters with three different cell densities. Method: Raw waters were prepared at three different cell densities (target cell densities of 10,000, 100,000, and 1,000,000 ...
Joo Eun Han, Wontae Lee
doaj   +1 more source

The extracellular polysaccharide determine the physico-chemical surface properties of Microcystis

Frontiers in Microbiology, 2023
Microcystis possesses the capacity to form colonies and blooms in lakes and reservoirs worldwide, causing significant ecological challenges in aquatic ecosystems.
Haijian Yang, Denghua Wu, Denghua Wu, Hua Li, Chunxiang Hu   +4 more
doaj   +1 more source

Nitrogen Substrate Impacts Microcystis aeruginosa Exometabolome Composition. [PDF]

Environ Microbiol Rep
We used untargeted metabolomics to identify differences in the compounds exuded into culture media by three strains of M. aeruginosa grown on three N substrate treatments (NO3−, NH4+, and urea). Results showed that the usage of different N substrates changes the exometabolome of toxic and non‐toxic strains of M. aeruginosa.
Peck CM, Hart LN, Kersten R, Kharbush JJ.   +3 more
europepmc   +2 more sources

Leucine incorporation by Microcystis aeruginosa [PDF]

Limnology and Oceanography, 2000
In experiments with axenic cultures of Microcystis aeruginosa, we tested whether this cyanobacterium incorporates leucine, a compound that is often used for the measurement of heterotrophic bacterioplankton production. Microcystis showed significant leucine incorporation, and the uptake of exponentially growing cells was higher than the uptake of cells
Kamjunke, Norbert, Jähnichen, Sabine
openaire   +3 more sources

Increasing Microcystis cell density enhances microcystin synthesis: a mesocosm study [PDF]

, 2012
An experimental protocol using mesocosms was established to study the effect of Microcystis sp. cell abundance on microcystin production. The mesocosms (55 L) were set up in a shallow eutrophic lake and received either no (control), low (to simulate a ...
Cary, S. Craig, Dietrich, Daniel R., Hamilton, David P., Wood, Susanna A.   +3 more
core   +2 more sources

Abundance trade-offs and dominant taxa maintain the stability of the bacterioplankton community underlying Microcystis blooms

Frontiers in Microbiology, 2023
Microcystis blooms are an intractable global environmental problem that pollute water and compromise ecosystem functioning. Closed-lake management practices keep lakes free of sewage and harmful algae invasions and have succeeded in controlling local ...
Jun Chen, Jun Chen, Tiange Zhang, Tiange Zhang, Lingyan Sun, Lingyan Sun, Yan Liu, Yan Liu, Dianpeng Li, Dianpeng Li, Xin Leng, Xin Leng, Shuqing An, Shuqing An   +13 more
doaj   +1 more source

The Effect of Cyanobacterial Biomass Enrichment by Centrifugation and GF/C Filtration on Subsequent Microcystin Measurement

Toxins, 2015
Microcystins are cyclic peptides produced by multiple cyanobacterial genera. After accumulation in the liver of animals they inhibit eukaryotic serine/threonine protein phosphatases, causing liver disease or death.
Shelley Rogers, Jonathan Puddick, Susanna A. Wood, Daniel R. Dietrich, David P. Hamilton, Michele R. Prinsep   +5 more
doaj   +1 more source

Control of Microcystis Buoyancy by Reducing Cellular Carbohydrate Content at High Temperature

Journal of Water and Environment Technology, 2023
This study aimed to control the buoyancy of Microcystis by increasing the growth rate and simultaneously reducing the cellular carbohydrate content under various light and temperature regimes.
Thoriq Teja Samudra, Yoshimasa Amano, Motoi Machida   +2 more
doaj   +1 more source

Parametric optimization of cyanobacterial coagulation at exponential and decline phases by combining polyaluminum chloride and cationic polyacrylamide

Aqua, 2021
Microcystis spp. is the most common and problematic species during cyanobacterial bloom. This study employed Microcystis aeruginosa for coagulation experiments.
Weijun Song, Yu Xie, Jiapeng Hu, Xunfang Wu, Xi Li   +4 more
doaj   +1 more source