1999/05/25 by Silvina Ponce Dawson, Joel Keizer, John E. Pearson · 1 citation
Agricultural and Biological Sciences · Biochemistry, Genetics and Molecular Biology · #Plant Stress Responses and Tolerance #Plant Molecular Biology Research #Plant Reproductive Biology
paper · doi:10.1073/pnas.96.11.6060
openalex publication_date 1999/05/25 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01
When Ca2+ is released from internal stores in living cells, the resulting wave of increased concentration can travel without deformation (continuous propagation) or with burst-like behavior (saltatory propagation). We analyze the "fire-diffuse-fire" model in order to illuminate the differences between these two modes of propagation. We show that the Ca2+ release wave in immature Xenopus oocytes and cardiac myocytes is saltatory, whereas the fertilization wave in the mature oocyte is continuous.