Residual ground-water levels of the neonicotinoid thiacloprid perturb chemosensing of Caenorhabditis elegans.

ABSTRACT: This study investigated the neurological effects of residual ground-water levels of thiacloprid on the non-target organism Caenorhabditis elegans. Nematodes treated with thiacloprid showed a dose-dependent and significantly increased twitch response at concentrations above 50 ng mL^-1 that disabled their forward locomotion in liquid culture. In comparison with untreated controls, 10 ng mL^-1 thiacloprid perturbed the chemosensory ability of C. elegans such that the nematodes no longer demonstrated positive chemotaxis towards a NaCl chemo-attractant, reducing their chemotaxis index from +0.48 to near to zero. Nematodes also exhibited a locomotion characteristic of those devoid of chemo-attraction, making significantly more pirouetting turns of ≥90° than the untreated con

SUBMITTER: Hopewell H 

PROVIDER: S-EPMC5563336 | biostudies-literature | 2017 Sep

REPOSITORIES: biostudies-literature