title: Establishment and characterization of a diploid cell line from the tick, Dermacentor parumapertus Neumann (Acarina: Ixodidae).
abstract: Establishment of a continuous cell line (RML-14) from embryonic tissues of the tick Dermacentor parumapertus Neumann is reported. The culture medium employed consisted of a combination (2:1) of Eagle's and L-15 (Leibovitz) media supplemented with 20% fetal bovine serum, 10% tryptose phosphate broth, and 0.1% bovine plasma albumin. At the 8th passage, 99% of dividing cells had the female chromosome complement, among which more than 70% had a diploid chromosome number of 22. At the 13th passage, cell population showed approximately a 3-fold increase during the first 8 days of culture. As of December 1976, had been subcultured 40 times.
mesh_terms: D000818:Animals; D002460:Cell Line; D002478:Cells, Cultured; D003470:Culture Media; D003870:Dermacentor / Q000166:cytology*; D004171:Diploidy; D013987:Ticks / Q000166:cytology*
chemical_list: D003470:Culture Media