| Title: | Acidification and gamma-aminobutyric acid independently alter kairomone-induced behaviour |
| Author(s): | Charpentier CL; Cohen JH; |
| Address: | "School of Marine Science and Policy, College of Earth, Ocean and Environment , University of Delaware , 700 Pilottown Road, Lewes, DE 19958 , USA" |
| ISSN/ISBN: | 2054-5703 (Print) 2054-5703 (Electronic) 2054-5703 (Linking) |
| Abstract: | "Exposure to high pCO(2) or low pH alters sensation and behaviour in many marine animals. We show that crab larvae lose their ability to detect and/or process predator kairomones after exposure to low pH over a time scale relevant to diel pH cycles in coastal environments. Previous work suggests that acidification affects sensation and behaviour through altered neural function, specifically the action of gamma-aminobutyric acid (GABA), because a GABA antagonist, gabazine, restores the original behaviour. Here, however, gabazine resulted in a loss of kairomone detection/processing, regardless of pH. Our results also suggest that GABAergic signalling is necessary for kairomone identification in these larvae. Hence, the mechanism for the observed pH effect varies from the original GABA hypothesis. Furthermore, we suggest that this pH effect is adaptive under diel-cycling pH" |
| Keywords: | kairomones pH zooplankton gamma-aminobutyric acid; |
| Notes: | "PubMed-not-MEDLINECharpentier, Corie L Cohen, Jonathan H eng England 2016/10/06 R Soc Open Sci. 2016 Sep 21; 3(9):160311. doi: 10.1098/rsos.160311. eCollection 2016 Sep" |
