2024-03-29T01:03:37Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/202962020-11-12T09:03:04Zcom_10261_123com_10261_8com_10261_14col_10261_376col_10261_267
Triphenyltin and tributyltin, single and in combination, promote imposex in the gastropod Bolinus brandaris
Machado Santos, Miguel
Reis-Henriques, Maria Armanda
Vieira, Maria Natividade
Solé, Montserrat
Imposex
Triphenyltin
Tributyltin
Chemical mixtures
Bioindicators
Bolinus brandaris
APGWamide
Acetylcholinesterase
8 pages, 2 tables
Specimens of Bolinus brandaris (neogastropod) were injected with a single dose of 500 ng/g body weight (b.w.) of tributyltin chloride (TBTCl) or triphenyltin chloride (TPTCl), or a mixture of both compounds (250 ng TBT/g b.w.+250 ng TPT/g b.w.), for a period of up to 31 days. At the end of 4 weeks, significant increases in the female penis size of those gastropods injected with TBT
(Po0:05), TPT (Po0:05), or the mixture TBT+TPT (Po0:01) were recorded. In parallel, a group of animals was injected with the neuropeptide APGWamide but this compound failed to promote imposex, suggesting that APGWamide is not involved in imposex promotion in B. brandaris. Acetylcholinesterase activity, a biomarker of neurotoxicity, was determined in the neuroganglia at the end of the experiment, but no significant differences among treatments were found. Overall, these results support the hypothesis that
TPT also acts as an endocrine disrupter in this neogastropod species. Our observations also highlight, for the first time, synergistic
effects of organotin mixtures having imposex promotion as an endpoint.
2010-01-25T12:54:43Z
2010-01-25T12:54:43Z
2006-06
artículo
Ecotoxicology and Environmental Safety 64(2): 155–162 (2006)
0147-6513
http://hdl.handle.net/10261/20296
10.1016/j.ecoenv.2005.02.003
eng
https://doi.org/10.1016/j.ecoenv.2005.02.003
closedAccess
Elsevier