title: Fertilization by guinea pig spermatozoa requires potassium ions.
mesh_terms: D000177:Acrosome / Q000187:drug effects; D000818:Animals; D005260:Female; D005306:Fertilization / Q000187:drug effects*; D005947:Glucose / Q000494:pharmacology; D006168:Guinea Pigs; D008274:Magnesium / Q000494:pharmacology; D008297:Male; D011188:Potassium / Q000494:pharmacology*; D013081:Sperm Motility / Q000187:drug effects; D013084:Sperm-Ovum Interactions / Q000187:drug effects; D013094:Spermatozoa / Q000187:drug effects / Q000502:physiology*
chemical_list: D008274:Magnesium; D005947:Glucose; D011188:Potassium