Web13 gen 2009 · The equal ability of each sperm cell to fertilize the egg cell implies that both sperms compete for the egg but that an unknown mechanism must prevent the fusion of a second sperm cell to a fertilized egg cell, reminiscent of the polyspermy block in sexually reproducing animals. Acknowledgments
Mathieu INGOUFF – qBio
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Web12 ago 2008 · Ingouff M, Jullien PE, Berger F (2006) The female gametophyte and the endosperm control cell proliferation and differentiation of the seed coat in Arabidopsis. Plant Cell 18: 3491–3501. View Article Google Scholar 28. Web15 ago 2010 · In plants, calcium signaling (Antoine et al., 2000; Roberts et al., 1994) and sperm cell nucleus chromatin remodeling (Ingouff et al., 2007) also take place after fertilization. However mechanisms causing zygotic activation and controlling karyogamy remain unknown and might differ between fertilization of the egg cell and fertilization of … Web23 ago 2009 · HTR10 (symbolized in green with H3.3) accumulates in the sperm nuclei (Ingouff et al. 2007). Upon fertilization paternal HTR10 is rapidly replaced in the zygote before the first cell division. In higher plants, sexual reproduction is characterized by another fertilization event involving the other sperm cell and the central cell, initiating the … shuttle orbiter construction kit stand