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Title: | Toxic effects of a cyanobacterial strain on Chironomus riparius larvae in a multistress environment | Authors: | Stanković, Nikola Jovanović, Boris Kostić Kokić, Ivana Stojković Piperac, Milica Simeunović, Jelica Jakimov, Dmitar Dimkić, Ivica Milošević, Đurađ |
Keywords: | Cyanotoxin;Microcystin;Chironomus;Trichormus variabilis;Multistress Eutrophication | Issue Date: | 2-Oct-2022 | Rank: | M21a | Publisher: | Elsevier B.V. | Citation: | Nikola Stanković, Boris Jovanović, Ivana Kostić Kokić, Milica Stojković Piperac, Jelica Simeunović, Dimitar Jakimov, Ivica Dimkić, Djuradj Milošević, Toxic effects of a cyanobacterial strain on Chironomus riparius larvae in a multistress environment, Aquatic Toxicology, Volume 253, 2022, 106321, ISSN 0166-445X, https://doi.org/10.1016/j.aquatox.2022.106321. (https://www.sciencedirect.com/science/article/pii/S0166445X22002478) | Journal: | Aquatic Toxicology | Abstract: | Cyanobacteria and their toxic metabolites present a global threat to water habitats, but their impact on aquatic organisms in a multistress environment has been poorly investigated. Here we present the results of a survey on the effects of the toxic cyanobacterial strain Trichormus variabilis (heterotypic synonym Anabaena variabilis), and its toxic metabolite, cyanotoxin microcystin-LR, on Chironomus riparius larvae in a multistress environment. An environmentally relevant concentration of microcystin-LR (0.01 mg/L) caused an increase in larvae mortality in an acute toxicity test, which became greater in the presence of environmental stressors (NO3−, NH4+, PO43− and Cd2+), pointing to an additive effect of these agents. Chronic exposure of C. riparius larvae to the microcystin-LR producing strain of T. variabilis in a multistress environment led to a reduction in the larval mass and hemoglobin concentration, and it induced DNA damage in larval somatic cells. The results revealed the additive effect of microcystin-LR in combination with all three tested stressors (NO3−, NH4+, PO43−), and the deleterious effect of chronic exposure of C. riparius larvae to the microcystin-LR producing T. variabilis in a multistress environment. However, the present study further emphasizes the importance of investigating interactions between stressors and cyanotoxins, and their effect on aquatic organisms. Previous article in issue |
URI: | https://biore.bio.bg.ac.rs/handle/123456789/4911 | ISSN: | 0166-445X | DOI: | 10.1016/j.aquatox.2022.106321 |
Appears in Collections: | Journal Article |
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