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Activity of Glutathione S-Transferase in the Hepatopancreas is not Influenced by the Molting Cycle in the Fiddler Crab, Uca pugilator

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Abstract

Glutathione S-transferase (GST) in the hepatopancreas of crustaceans has been suggested as a biomarker for organic pollution. However, much of crustacean physiology is known to exhibit a cyclic characteristic because of the periodic shedding of the confining exoskeleton. The goal of this study was to determine whether hepatopancreatic GST activity varies during the molting cycle using the fiddler crab, Uca pugilator, as the model. Neither the molting cycle nor 20-hydroxyecdysone injection had a significant effect on hepatopancreatic GST activity, suggesting GST activity is not under control of the molting hormone in Uca pugilator.

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Acknowledgments

Appreciation is expressed to Ms. Yanling Meng for her technical assistance. This investigation was supported by grant LEQSF (2005-08)-RD-A-26 from the Louisiana Board of Regents. We wish to thank the anonymous reviewers for suggestions that lead to the improvement of this manuscript.

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  1. Department of Biological Sciences, Nicholls State University, Thibodaux, LA, 70310, USA

    Sarah Hotard & Enmin Zou

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  1. Sarah Hotard
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  2. Enmin Zou
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Correspondence to Enmin Zou.

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Hotard, S., Zou, E. Activity of Glutathione S-Transferase in the Hepatopancreas is not Influenced by the Molting Cycle in the Fiddler Crab, Uca pugilator . Bull Environ Contam Toxicol 81, 242–244 (2008). https://doi.org/10.1007/s00128-008-9487-5

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  • DOI: https://doi.org/10.1007/s00128-008-9487-5

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