title: [Regeneration of photoreceptor organs in freshwater planarians at different levels of accumulation of natural methylmercury compounds].
abstract: The effects of natural methylmercury compounds on regeneration of photoreceptor organs were studied in three freshwater planarians: Polycelis tenuis, Dugesia lugubris, and D. tigrina. Accumulation of methyl mercury in the planarian body suppressed regeneration of P. tenuis with numerous photoreceptor organs to a greater extent than in two other planarians that have only two eyes. High methyl mercury concentrations inhibited the restoration of photoreceptor organs in asexual and sexual D. tigrina races.
authors.forename: I V
authors.initials: IV
authors.lastname: Medvedev
authors.forename: V A
authors.initials: VA
authors.lastname: Gremiachikh
authors.forename: S V
authors.initials: SV
authors.lastname: Zheltov
authors.forename: O V
authors.initials: OV
authors.lastname: Bogdanenko
authors.forename: I A
authors.initials: IA
authors.lastname: Aksenova
mesh_terms: D000818:Animals; D005618:Fresh Water / Q000737:chemistry; D008767:Methylmercury Compounds / Q000032:analysis / Q000633:toxicity*; D017956:Photoreceptor Cells, Invertebrate / Q000187:drug effects / Q000502:physiology*; D010932:Planarians / Q000187:drug effects / Q000502:physiology*; D012038:Regeneration / Q000187:drug effects*
chemical_list: D008767:Methylmercury Compounds