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Figure 1 | Cell Communication and Signaling

Figure 1

From: Oocyte activation and phospholipase C zeta (PLCζ): diagnostic and therapeutic implications for assisted reproductive technology

Figure 1

A) Calcium wave as observed using calcium-green-1-dextran in a Xenopus egg. Time 0 shows the egg’s resting levels of calcium. The sperm-induced calcium wave was initiated by sperm entry (indicated by white arrow), and traversed the entire egg. B) Ca2+ responses at fertilisation in eggs and oocytes of several species. C) Ca2+ release profile observed during human fertilisation. Reproduced from Fontanilla and Nuccitelli (1998) and Miyazaki (2006) with permission. Figure 1C reproduced from Rogers et al. (© Society for Reproduction and Fertility, 2004), with permission

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