IBIS-Flora

Angiosperm Flora of India

Effect of Ultraviolet Radiation on Acetylcholinesterase Activity in Freshwater Copepods

Publication Type:Journal Article
Year of Publication:2010
Authors:Souza, MSol, Balseiro, E, Laspoumaderes, C, Modenutti, B
Journal:Photochemistry and Photobiology
Volume:86
Issue:2
Date Published:2010
ISBN Number:1751-1097
Abstract:

We analyzed the effects of UV radiation (UVR) effects on acetylcholinesterase (AChE) activity in two calanoid copepods, Boeckella gibbosa and Parabroteas sarsi that inhabit Patagonian shallow lakes. We studied the effect of experimental UVR (UV-B and UV-A) exposure on AChE activity in relation to basal antioxidant capacities of both copepods. Our experiments showed that UVR can effectively depress AChE activity, although with differences between species. In both copepods AChE was affected by UV-B, whereas UV-A only affected AChE in B. gibbosa. Both copepods also differed in body elemental composition (C:N:P), photoprotecting compound content (carotenoids and mycosporine-like amino acids) and enzymatic antioxidant capacity (glutathione S-transferase [GST]). Our results suggest that when exposed to UVR, AChE activity would depend more on the antioxidant capacity (GST) and P availability for enzyme synthesis than on the photoprotective compounds.

URL:http://dx.doi.org/10.1111/j.1751-1097.2009.00675.x
Short Title:Photochemistry and Photobiology
Fri, 2014-01-24 22:36 -- admin
https://secure.gravatar.com/avatar/5ade1b012674ce3dd941e2ea5dd15cc1.jpg?d=https%3A//flora.indianbiodiversity.org/sites/all/modules/patches/contrib/gravatar/avatar.png&s=100&r=G
Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith