Results 41 to 50 of about 15,254 (243)

Further characterization of glycine-containing microcystins from the McMurdo Dry Valleys of Antarctica [PDF]

, 2015
Microcystins are hepatotoxic cyclic peptides produced by several cyanobacterial genera worldwide. In 2008, our research group identified eight new glycine-containing microcystin congeners in two hydro-terrestrial mat samples from the McMurdo Dry Valleys ...
Cary, S. Craig, Hamilton, David P., Holland, Patrick T., Prinsep, Michèle R., Puddick, Jonathan, Wood, Susanna A.   +5 more
core   +3 more sources

Ecological, Functional, and Phylogenetic Determinants of Cyanobacterial Biomineralisation [PDF]

Environ Microbiol Rep
Cyanobacteria contribute to the global carbon cycle by biomineralising CO2 into solid carbonates. Unlike photosynthesis, biomineralisation is a less‐understood, multifaceted and adaptive metabolic process with significant global impact. It involves cell wall structures, genetic factors, and metabolic pathways that enable mineral formation and help ...
Tiddia F, Kodru S, Piano D, Farci D.
europepmc   +2 more sources

Flavobacterium microcysteis sp. nov., isolated from a culture of Microcystis aeruginosa

International Journal of Systematic and Evolutionary Microbiology, 2020
A Gram-stain-negative, yellow-pigmented, strictly aerobic bacterium, designated strain MaA-Y11T, was isolated from a culture of Microcystis aeruginosa in the Republic of Korea. Cells were non-motile rods showing catalase- and oxidase-positive reactions.
Ye Lin, Seo, Sang Eun, Jeong, Hyun Mi, Jin, Che Ok, Jeon   +3 more
openaire   +2 more sources

Study of the growth and biochemical composition of 20 species of cyanobacteria cultured in cylindrical photobioreactors

Microbial Cell Factories, 2023
Background Cyanobacteria are prokaryotic organisms with wide morphological and metabolic diversity. By means of photosynthesis, they convert inorganic compounds into biomolecules, which may have commercial interest.
Douglas Henrique Baracho, Ana Teresa Lombardi   +1 more
doaj   +1 more source

Characterization of Potential Threats from Cyanobacterial Toxins in Lake Victoria Embayments and during Water Treatment

Toxins, 2022
Africa’s water needs are often supported by eutrophic water bodies dominated by cyanobacteria posing health threats to riparian populations from cyanotoxins, and Lake Victoria is no exception.
Mark Olokotum, Jean-François Humbert, Catherine Quiblier, William Okello, Ronald Semyalo, Marc Troussellier, Benjamin Marie, Kathrin Baumann, Rainer Kurmayer, Cécile Bernard   +9 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

Analysis of polyhydroxybutrate and bioplastic production from microalgae

Bulletin of the National Research Centre, 2019
Background Algae manufacture a diversity of base materials that can be used for bioplastics assembly. The most essential compounds are carbohydrates and hydrocarbons.
Sayeda M. Abdo, Gamila H. Ali
doaj   +1 more source

Effects of temperature and oxygen on cyanobacterial DNA preservation in sediments: A comparison study of major taxa

Environmental DNA, 2022
The analysis of sediment DNA has emerged as a promising alternative to classical paleolimnological proxies, which typically rely on hard fossils to reconstruct environmental change.
Hebah S. Mejbel, William Dodsworth, Frances R. Pick   +2 more
doaj   +1 more source

Diet composition of Oreochromis niloticus from selected impoundments of different states, with special focus on toxigenic cyanobacteria identified using molecular techniques

Scientific African, 2021
The diet of Oreochromis niloticus from hypereutrophic Lake Chivero and oligo-mesotrophic Lake Kariba was studied in 2017, with focus on the consumption of cyanobacteria.
Vimbai R. Hamandishe, Petronella T. Saidi, Jabulani Gumbo, Tamuka Nhiwatiwa   +3 more
doaj   +1 more source

Effects of dissolved organic matter from sediment and soil samples on the growth and physiology of four bloom-forming algal species

Ecotoxicology and Environmental Safety, 2023
Algal blooms negatively impact the water quality of reservoirs; however, the role of dissolved organic matter (DOM) in bloom formation in reservoirs has not been investigated.
Rong Xiang, Binghui Zheng, Haifeng Jia
doaj   +1 more source