title: [Histological analysis of the testis of Apodemus sylvaticus and Clethrionomys rutilus living in radioactively contaminated areas].
abstract: We made a histological analysis of testis in Apodemus sylvaticus and Clethrionomys rutilus inhabiting a contaminated area of the East Ural Radioactive Trace (EURT). It showed that in the control these species different in the total number of cells of spermatogenic epithelium and in testis indices which were determined by interspecific differences. Concentration of 137Cs and 90Sr in Clethrionomys rutilus from the sampling plot was correspondingly 1.5 and 6.1 times higher than in the control, in Apodemus sylvaticus--1.9 and 3.6 times, correspondingly. Clethrionomys rutilus from the contaminated area had altered kinetics of spermatogenesis--an increased proliferation activity of spermatogenic epithelium. Maximum degeneration of cells was observed at the stage of spermatocytes. Such changes were not observed in Apodemus sylvaticus.
authors.affiliation: Institute of Plant and Aminal Ecology, Ural Division of Russian Academy of Sciences, Ekaterinburg.
authors.forename: V P
authors.initials: VP
authors.lastname: Mamina
mesh_terms: D000398:Air Pollution, Radioactive; D000818:Animals; D003411:Arvicolinae / Q000378:metabolism; D002588:Cesium Radioisotopes / Q000032:analysis; D008297:Male; D009115:Muridae / Q000378:metabolism; D018788:Radioactive Hazard Release; D012800:Siberia; D013091:Spermatogenesis; D013326:Strontium Radioisotopes / Q000032:analysis; D013737:Testis / Q000473:pathology / Q000528:radiation effects*
chemical_list: D002588:Cesium Radioisotopes; D013326:Strontium Radioisotopes