Cytoplasmic droplets of painted turtle spermatozoa

Daniel H. Gist, Rex A. Hess, Ronald J. Thurston

Research output: Contribution to journalArticlepeer-review


Epididymal sperm from the painted turtle (Chrysemys picta) possess a cytoplasmic droplet which is located eccentrically on the sperm midpiece. The droplet contains a large quantity of lipid droplets in addition to hollow vesicles and degenerate mitochondrial fragments. Lipid droplets are closely associated with mitochondrial membranes and may function in the formation or degradation of mitochondria. Cytoplasmic droplets become detached from the sperm midpiece in a coordinated manner shortly before the commencement of fall mating and are not observed on sperm recovered from the oviduct of females. © 1992 Wiley‐Liss, Inc.

Original languageEnglish (US)
Pages (from-to)153-158
Number of pages6
JournalJournal of Morphology
Issue number2
StatePublished - Nov 1992

ASJC Scopus subject areas

  • Animal Science and Zoology
  • Developmental Biology


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