Effects of cadmium and phenol on motility and ultrastructure of sea urchin and mussel spermatozoa

D. W. T. AU, M. W. L. CHIANG, Shiu Sun Rudolf WU

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56 Citations (Scopus)

Abstract

Computer-assisted sperm analysis (CASA) was used to study the effects of Cd(II) and phenol on sperm motility of sea urchin and mussel. In parallel, ultrastructural changes of sperm induced by these two toxicants were also investigated and related to motility impairment. Spermatozoa of sea urchin were more sensitive than mussel spermatozoa to both toxicants. Sea urchin sperm motility showed a good dose-response relationship to Cd(II) levels as well as exposure time. Exposure to the two toxicants changed the size and shape of the midpiece, which might affect the balance of spermatozoa in their swimming. The plasma membrane became more convoluted, and such a change might affect the streamlining and integrity of spermatozoa and hinder their normal movement patterns. Most important, disorganization of mitochondrial membranes and cristae was observed, suggesting disruption of ATP supply for sperm movement. Cadmium also induced greater ultrastructural damages in sea urchin spermatozoa. Copyright © 2000 Springer-Verlag New York Inc.

Original languageEnglish
Pages (from-to)455-463
JournalArchives of Environmental Contamination and Toxicology
Volume38
Issue number4
DOIs
Publication statusPublished - May 2000

Citation

Au, D. W. T., Chiang, M. W. L., & Wu, R. S. S. (2000). Effects of cadmium and phenol on motility and ultrastructure of sea urchin and mussel spermatozoa. Archives of Environmental Contamination and Toxicology, 38(4), 455-463. doi: 10.1007/s002449910060

Keywords

  • Plasma Membrane
  • Phenol
  • Cadmium
  • Exposure Time
  • Mitochondrial Membrane

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