Toxicity assessment of metabolites of fungal biocontrol agents using two different (Artemia salina and Daphnia magna) invertebrate bioassays

2006 ◽  
Vol 44 (11) ◽  
pp. 1922-1931 ◽  
Author(s):  
M. Favilla ◽  
L. Macchia ◽  
A. Gallo ◽  
C. Altomare
2012 ◽  
Vol 161 ◽  
pp. 29
Author(s):  
Dilsad Onbasili ◽  
Fatih Duman ◽  
Berrak Altinsoy ◽  
Hatice Bekci

2014 ◽  
Vol 40 (3) ◽  
pp. 115-121 ◽  
Author(s):  
Anna Sierosławska ◽  
Anna Rymuszka ◽  
Tadeusz Skowroński

Abstract The aim of the study was to determine the toxicity of the extract obtained from the cyanobacterial cells derived from the waters of Zemborzycki dam reservoir with use of a battery of biotests. The taxonomic identification of the bloom-forming cyanobacteria revealed high abundance of Aphanizomenon flos-aquae and Dolichospermum spp. (Anabaena spp.) and in a lower degree of Microcystis aeruginosa and Planktothrix agardhii. In the extract obtained from concentrated cyanobacterial cells, hepatotoxin microcystin-LR at a concentration of 22.89 ± 3.74 μg/L and neurotoxin Antx-a at 13.02 ± 0.01 μg/L have been detected. Toxicity of the extract was evaluated with the following assays: Daphtoxkit F magna with the crustacean Daphnia magna, Thamnotoxkit F with the crustacean Thamnocephalus platyurus, Rotoxkit F with the rotifer Brachionus calyciflorus and Protoxkit F with ciliate Tetrahymena thermophila. The most sensitive organism among all studied was T. platyurus for which EC50 was estimated to be 1.2% of the initial extract concentration. On the basis of the highest obtained value of the toxicity unit (TU = 83) the studied sample was classified to the IV class, which is of high acute toxicity. Additionally, it was found that reactivity on cyanobacterial products differs greatly among organisms used in bioassays, which indicate the need for using a set of biotests.


2008 ◽  
Vol 24 (7) ◽  
pp. 491-500 ◽  
Author(s):  
Y Verma

Aquatic toxicity of textile dyes and textile and dye industrial effluents were evaluated in an acute toxicity study using Daphnia magna as an aquatic experimental animal model. The 48-h EC50 value for the azo dyes, Remazol Parrot Green was 55.32 mg/L and for Remazol Golden Yellow was 46.84 mg/L. Whereas 48-h EC50 values for three dye industrial effluents (D1, D2, and D3) were 14.12%, 15.52%, and 29.69%, respectively. Similarly, EC50 value for three textile mill effluents (T1, T2, and T3) were >100%, 62.97%, and 63.04%, respectively. These results also showed linear relationship with high degree of confidence ( r2 = >0.84 to >0.99) between immobility and test concentrations. The ratio of 24 to 48-h EC50 remains to be in between 1.1 and 1.2. The general criteria of toxicity classification showed that both dyes were minor acutely toxic having 48-h EC50 in between 10 and 100 mg/L. Of the six textile and dye industrial effluents tested, one was not acutely toxic (48-h EC50 > 100%) and five were minor acutely toxic (48-h EC50 > 14.12–29.69%). The toxicity classification of effluent based on toxic unit (TU) showed that of the six effluents tested five were found toxic (TU = >1) and one was non-toxic (TU = <1). Thus, dye effluents showed highest toxicity and textile effluents lowest toxicity. The study also suggested that the assay with D. magna was an excellent method for evaluation of aquatic toxicity of dyes and dyes containing industrial effluents.


2015 ◽  
Vol 11 (2) ◽  
pp. 153-160 ◽  
Author(s):  
Seung Hyuck Bang ◽  
Ji-Young Ahn ◽  
Nam-Hui Hong ◽  
Simranjeet Singh Sekhon ◽  
Yang-Hoon Kim ◽  
...  

Author(s):  
O V Nikitin ◽  
E I Nasyrova ◽  
V R Nuriakhmetova ◽  
N Yu Stepanova ◽  
N V Danilova ◽  
...  

2016 ◽  
Vol 258 ◽  
pp. S68
Author(s):  
O. Olaru ◽  
M. Ivopol ◽  
G. Nitulescu ◽  
A. Dune ◽  
I. Calinescu ◽  
...  

2012 ◽  
Vol 185 (3) ◽  
pp. 2179-2187 ◽  
Author(s):  
Juliana Carla Garcia ◽  
Thábata Karoliny Formicoly de Souza Freitas ◽  
Soraya Moreno Palácio ◽  
Elizangela Ambrósio ◽  
Maísa Tatiane Ferreira Souza ◽  
...  

Author(s):  
Burcu Ertit Taştan

Abstract This study demonstrates the removal of fly ash with Penicillium chrysogenum, a newly isolated species of fungus, and acute toxicity assessment with Daphnia magna. In the study, two different removal mechanisms were compared, both bio-removal and bio-sorption. Six different ash and three different biomass concentrations were used simultaneously. Although other fungal species in the literature failed at such a high concentration of fly ash, P. chrysogenum was able to tolerate it even at 10% concentration. The highest bio-removal yield was recorded as 100% at 0.5% fly ash concentration. Maximum bio-sorption yield was 95.27% after 24th hour. The evaluation results of fly ash bio-toxicity by D. magna showed that the no observed effect level (NOEL) was 0.2 mg/L and the low observed effect level (LOEL) was 0.5 mg/L. The element analysis, determined by ED-XRF, clarified that Ca, Si, Fe and S were the common elements in this ash. This is the first study in the literature where fly ash removal was carried out using P. chrysogenum for both bio-removal and bio-sorption and needs to be developed in the future.


2011 ◽  
Vol 26 ◽  
pp. e2011002 ◽  
Author(s):  
Seung Hyuck Bang ◽  
Thai-Hoang Le ◽  
Sung Kyu Lee ◽  
Pil Kim ◽  
Jong Soo Kim ◽  
...  

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