Assessment of thiamethoxam toxicity to Chironomus riparius

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12520%2F17%3A43891941" target="_blank" >RIV/60076658:12520/17:43891941 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.sciencedirect.com/science/article/pii/S0147651316305140" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0147651316305140</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ecoenv.2016.12.009" target="_blank" >10.1016/j.ecoenv.2016.12.009</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Assessment of thiamethoxam toxicity to Chironomus riparius

Popis výsledku v původním jazyce

The insecticide thiamethoxarn (TMX) is a systemic neonicotinoid widely used for pest control in several agricultural crops. MIX mimics the action of acetylcholine causing uncontrolled muscular contraction eventually leading to insect death. TMX is being found in freshwater ecosystems at concentrations of up to 225 mu g/L. Still, chronic toxicity data for freshwater invertebrates is limited. Therefore, the aim of this study was to evaluate the acute and chronic effects (at organismal and biochemical levels) of TMX on the freshwater insect Chironomus riparius. C. riparius life history responses were significantly affected by TMX exposure, namely with a decrease in growth and delay in emergence. Concerning the biochemical responses, after a short exposure (48 h) to TMX, our results showed that low concentrations of TMX significantly reduced CAT activity and LPO levels of C. riparius. No effects were observed in AChE, GST and ETS activities. Effects in terms of survival, development rates and biochemical responses of C. riparius exposed to low concentrations of TMX observed in this study suggest potential deleterious effects of this neonicotinoid on aquatic insects inhabiting freshwaters environments near agricultural areas.

Název v anglickém jazyce

Assessment of thiamethoxam toxicity to Chironomus riparius

Popis výsledku anglicky

The insecticide thiamethoxarn (TMX) is a systemic neonicotinoid widely used for pest control in several agricultural crops. MIX mimics the action of acetylcholine causing uncontrolled muscular contraction eventually leading to insect death. TMX is being found in freshwater ecosystems at concentrations of up to 225 mu g/L. Still, chronic toxicity data for freshwater invertebrates is limited. Therefore, the aim of this study was to evaluate the acute and chronic effects (at organismal and biochemical levels) of TMX on the freshwater insect Chironomus riparius. C. riparius life history responses were significantly affected by TMX exposure, namely with a decrease in growth and delay in emergence. Concerning the biochemical responses, after a short exposure (48 h) to TMX, our results showed that low concentrations of TMX significantly reduced CAT activity and LPO levels of C. riparius. No effects were observed in AChE, GST and ETS activities. Effects in terms of survival, development rates and biochemical responses of C. riparius exposed to low concentrations of TMX observed in this study suggest potential deleterious effects of this neonicotinoid on aquatic insects inhabiting freshwaters environments near agricultural areas.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10511 - Environmental sciences (social aspects to be 5.7)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Ecotoxicology and Environmental Safety

ISSN

0147-6513

e-ISSN

—

Svazek periodika

137

Číslo periodika v rámci svazku

March

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

240-246

Kód UT WoS článku

000392786400031

EID výsledku v databázi Scopus

2-s2.0-85006013032