Table 1 Overview of the intracellular pH in unfertilized (UnF) and fertilized (F) eggs of different sea urchin species
From: CO2-induced fertilization impairment in Strongylocentrotus droebachiensis collected in the Arctic
Species | pHi (UnF) | pHi (F) | Method | References |
|---|---|---|---|---|
Lytechinus pictus | 6.84 | 7.3 | BCECF–dextran | Shen and Buck (1993) |
7.22 | 7.58 | BCECF–dextran | Rees et al. (1995) | |
6.90 | 7.17 | DMO method | Dubé et al. (1985) | |
Paracentrotus lividus | 7.38 | 7.64 | DMO method | Payan et al. (1983) |
Strongylocentrotus purpuratus | 7.08 | 7.47 | DMO method | Johnson and Epel (1981) |
7–7.09 | 7.54–7.50 | DMO method | Dubé et al. (1985) | |
Schaphechinus mirabilis | 6.8 | 7.34 | Microfluorometry using pyranine | Hamaguchi et al. (1997) |
Hemicentrotus pulcherrimus | 6.81 | 7.32 | ||
Psammechinus miliaris | 6.5–6.6 | – | Indirect estimation from acid production at fertilization | Rees et al. (1995) |