title: Nucleic acid levels in the developing ovaries of Hyalomma (Hyalomma) dromedarii (Acari: Ixodidae).
abstract: Protein and nucleic acid levels from the ovaries of Hyalomma dromedarii Koch were determined during different stages of oogenesis. The concentrations of total protein, DNA, and RNA increased during oogenesis, reflecting the rapid developmental changes taking place in this tissue. Peak protein and DNA levels were reached in the fully fed females, whereas RNA level peaked slightly earlier. Ribosomal RNA (rRNA) was found to be composed of 27.0s, 17.0s, and 4.1s particles. The ratio of 27.0s to 17.0s varied within the developing ovary, yet the 27.0s/4.1s ratio remained constant. The nucleotides of total RNA and rRNA were determined, and the ratio of purine/pyrimidine equaled approximately 1 and remained unchanged during oogenesis.
authors.affiliation: Medical Zoology Division, U.S. Naval Medical Research Unit No. 3 (NAMRU-3), New York 09527.
authors.forename: A I
authors.initials: AI
authors.lastname: Gadallah
authors.forename: G M
authors.initials: GM
authors.lastname: Khalil
authors.forename: A J
authors.initials: AJ
authors.lastname: Main
authors.forename: A S
authors.initials: AS
authors.lastname: Marzouk
mesh_terms: D000818:Animals; D004247:DNA / Q000032:analysis*; D005260:Female; D009866:Oogenesis / Q000502:physiology*; D010053:Ovary / Q000737:chemistry; D011506:Proteins / Q000032:analysis; D012313:RNA / Q000032:analysis*; D012335:RNA, Ribosomal / Q000032:analysis*; D013987:Ticks / Q000502:physiology*
chemical_list: D011506:Proteins; D012335:RNA, Ribosomal; D012313:RNA; D004247:DNA