title: Gametogenesis in planktonic foraminifera.
abstract: Gametogenesis in Globigerinella aequilateralis and Globigerinoides sacculifer in culture is preceded by sinking of the organism and loss of its spines. Hundreds of thousands of flagellated gametes, about 5 micrometers in diameter, are produced within the parent shell and released within a period of 13 hours.
mesh_terms: D008297:Male; D009866:Oogenesis; D010933:Plankton / Q000502:physiology*; D013091:Spermatogenesis; D015048:Zooplankton / Q000166:cytology / Q000502:physiology* / Q000648:ultrastructure