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• W1999167576 abstract "Event Abstract Back to Event Neuroendocrine control of reproductive activity in a bivalve mollusc Perna perna: Impact of pollution Mounia-Sarah Klouche1*, S. Benomar1, Nouria Lakhdar-Ghazal1, A. Moukrim2 and Z. Idardare2 1 University Mohammed V Agdal , Laboratory of biological rhythms and Environment, Faculty of science, Morocco 2 Universite Ibn Zohr, Laboratoire d'eau et environement, Faculte des Sciences , Morocco Purpose: To evaluate the impact of pollution on the regulation of reproduction by studying the effect of cerebroïdes ganglia via neurosecretory cells on the sexual cycle, of P. perna, during an annual cycle. Methods: studies performed in 3 mussel populations of the Atlantic coast: the first taken as a control is developed in an unpolluted site. The two others are collected from areas contaminated with domestic and industrial wastewater. The histology of gonads identified the sexual cycle of P. p., and defines the periods of spawning release. The immunocytological approach against anti-LHRH a marked variation in the number of neurosecretory cells, depending on specific periods of gonadal activity. Biomarkers (AChE, CAT, GST, and MDA) were measured in P. perna, to assess the degree of pollution in each station. Results: The latter occurs in three periods during the cycle in Reference Site. Where as among populations in the polluted sites, spawning takes place in two periods. Reproduction in polluted sites is disrupted, either through gametogenesis longer. The quantitative development of neurosecretory cells is correlated with the stages of sexual cycle. During the stages of maturation of gametes, it feels significantly, where as during the laying or sexual rest this number decreases. In area contaminated with domestic releases, this number is relatively less important compared to the other sites. In all sites, biomarkers show a seasonal cycle correlated to sex, and a significant site effect between the three sites. The results show also that the reference site reveals a form of contamination. Conclusions: Pollution Disrupts the cycle of sexual P. perna by reducing the number of nesting and changes the length of the wave’s gametogenetics. Pollution reduces the number of CNS containing the GnRH-like site in the very contaminated site. Conference: 3rd Mediterranean Conference of Neuroscience , Alexandria, Egypt, 13 Dec - 16 Dec, 2009. Presentation Type: Poster Presentation Topic: Imaging & Neuroendocrinology Citation: Klouche M, Benomar S, Lakhdar-Ghazal N, Moukrim A and Idardare Z (2009). Neuroendocrine control of reproductive activity in a bivalve mollusc Perna perna: Impact of pollution. Front. Neurosci. Conference Abstract: 3rd Mediterranean Conference of Neuroscience . doi: 10.3389/conf.neuro.01.2009.16.160 Copyright: The abstracts in this collection have not been subject to any Frontiers peer review or checks, and are not endorsed by Frontiers. They are made available through the Frontiers publishing platform as a service to conference organizers and presenters. The copyright in the individual abstracts is owned by the author of each abstract or his/her employer unless otherwise stated. Each abstract, as well as the collection of abstracts, are published under a Creative Commons CC-BY 4.0 (attribution) licence (https://creativecommons.org/licenses/by/4.0/) and may thus be reproduced, translated, adapted and be the subject of derivative works provided the authors and Frontiers are attributed. For Frontiers’ terms and conditions please see https://www.frontiersin.org/legal/terms-and-conditions. Received: 26 Nov 2009; Published Online: 26 Nov 2009. * Correspondence: Mounia-Sarah Klouche, University Mohammed V Agdal, Laboratory of biological rhythms and Environment, Faculty of science, Halifax, Nova Scotia, Morocco, mk_sarah33@hotmail.com Login Required This action requires you to be registered with Frontiers and logged in. To register or login click here. Abstract Info Abstract The Authors in Frontiers Mounia-Sarah Klouche S. Benomar Nouria Lakhdar-Ghazal A. Moukrim Z. Idardare Google Mounia-Sarah Klouche S. Benomar Nouria Lakhdar-Ghazal A. Moukrim Z. Idardare Google Scholar Mounia-Sarah Klouche S. Benomar Nouria Lakhdar-Ghazal A. Moukrim Z. Idardare PubMed Mounia-Sarah Klouche S. Benomar Nouria Lakhdar-Ghazal A. Moukrim Z. Idardare Related Article in Frontiers Google Scholar PubMed Abstract Close Back to top Javascript is disabled. Please enable Javascript in your browser settings in order to see all the content on this page." @default.
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• W1999167576 title "Neuroendocrine control of reproductive activity in a bivalve mollusc Perna perna: Impact of pollution" @default.
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