This work was carried out to study the seasonal occurrence of cyanobacteria and their microcystin-LR in water column Foum-Gleita reservoir (Mauritania). Limnological biological factors were investigated at three depths (surface, − 3, 6 m) this during a full year. Nutrients analyzed by Spectrophotometry, phytoplankton Inverted Microscopy, microsystins High Performance Liquid Chromatography-tande...

Članak obrađuje deset kamenih spomenika sa zavjetnim natpisimaposvećenih nimfama, a koji su pronađeni tijekom istraživanjaprostora rimskog izvorišta i svetišta 2011. 2012. godinena lokaciji u parku Varaždinskim Toplicama. Svi spomenicibili sekundarno iskorišteni obnovi kaptaže izvorišta, vjerojatnopočetkom 4. stoljeća. Istraživanja pokazala da je na tajnačin iskorišteno oko 50 ugrađeniu sjevern...

Lipopolysaccharides (LPS) were isolated from four species of cyanobacteria (Anabaena flos-aquae UTEX 1444. A. cylindrica, Oscillatoria tenuis, and O. brevis) frequently occurring in drinking-water supplies. The cyanobacterial LPS contained glucose, xylose, mannose, and rhamnose, but differed from the LPS derived from most gram-negative bacteria because of the variable presence of 2-keto-3-deoxy...

The toxicity of 7 herbicides to the three cyanobacteria was tested in this work. The results indicated that: (1) There was a highly significant relationship between dried weight or chlorophyll-a and OD680nm for tested cyanobacteria; (2) the toxicity of the tested herbicides with the order from high to low was: photosynthesis-inhibiting > ACCase inhibitor > protox inhibiting herbicides; (3) the ...

In this study we investigated the presence of toxin-producing cyanobacterial contaminants in food supplements manufactured from blooms of the non-toxic freshwater cyanobacterium Aphanizomenon flos-aquae. Previous reports investigating the contamination of health food supplements with toxin-producing cyanobacteria have used chemical and or biochemical methods such as HPLC, ELISA and protein phos...

The occurrence of antibiotic residues in the aquatic environment is an emerging concern. In contrast to daphnia and fish, algae are known to be particularly sensitive to antibiotic exposure. However, to date, a systematic evaluation of the sensitivity of different algal species to antibiotics has not been performed. The aim of the present study was therefore to explore the sensitivity of a batt...