Effect of light on calcium transport in bull sperm cells

R. Lubart, H. Friedmann, T. Levinshal, R. Lavie, H. Breitbart

Research output: Contribution to journalArticlepeer-review

88 Scopus citations


The effect of light on calcium transport was studied. Bull sperm cells were irradiated with an HeNe (630 mm) laser and a 780 nm diode laser at various energy doses, and 45Ca2+ uptake was measured by the filtration technique. It was found that there is an accelerated Ca2+ transport in the irradiated cells, which means that laser light can stimulate Ca2+ exchange through the cell membrane. This may cause transient changes in the cytoplasmic Ca2+ concentration which, in spermatozoa, has a regulatory role in control of motility and acrosome reaction, and in other cells can trigger mitosis.

Original languageEnglish
Pages (from-to)337-341
Number of pages5
JournalJournal of Photochemistry and Photobiology B: Biology
Issue number4
StatePublished - 15 Sep 1992


  • Ca ion transport
  • bull sperm cells
  • lasers.


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