1994. Attachment and fusion of gametes during fertilization of Palmaria sp. (Rhodophyta). J. Phycol. 30: 55-66.Maine, I. and Tatewaki, M., Attachment and Fusion of Gametes During Fertilization of Palmaria sp. (Rhodophyta), J. Phycol. , 1994, vol. 30, pp. 55-66....
Fertilization is the process by which two terminally differentiated cells, the sperm and the egg, merge to form a totipotent cell, the zygote. This review addresses one of the culminating steps in getting sperm and egg together: the cell-cell interactions that allow the two gametes to fuse and...
The cytol- ogy of gametes and the timeline of fertilization process have been well described3–5, while most of the very early cellular events just after membrane fusion and molecular mechanisms involved remains relatively unknown6–9. This is largely due to double fertilization occurs internally, ...
These models assumed random fusion of gametes, external fertilization, and that zygote viability is dependent on the volume of provisioning it receives from one or both gametes. The present analysis concerns the success of strategies for selective fusion of gametes arising in a randomly-fusing ...
(pollen grain cell) encases the two sperm cells, the female gametophyte (embryo sac) is multicellular in a more conventional sense, and consists of seven cells – three small antipodal cells, the large central cell (which contains two polar nuclei that fuse prior to fertilisation), the egg ...
After sperm cell delivery and fusion of two gamete pairs, a process termed as double fertilization, the fertilized central cell develops into the endosperm and the fertilized egg cell gives rise to the embryo. Numerous cell–cell communication events take place during the attraction of the male ...
GAMETE INTERACTIONS DURING DOUBLE FERTILIZATION REPULSION SIGNALING AND PREVENTION OF POLYSPERMY SELF-INCOMPATIBILITY (SI) SYSTEMS CROSSTALK DURING BRASSICA SI S-RNASE SI SIGNALING THE PAPAVER SI SYSTEM CONCLUSIONS AND PERSPECTIVES FUNDING REFERENCES Cited by (280) Figures (2)Volume...
Ascidians, as the sister group of vertebrates, offers an ideal opportunity to analyse the evolution of molecular pathways in chordates, including vertebrates. The ascidianCionapresents a bi-phasic life cycle; sessile adults release gametes in environment where fertilization occurs, followed by a rapid ...
While the role of calcium signalling during double fertilization in flowering plants still remains to be unveiled, it is known that calcium signalling plays a key role in cell–cell recognition, for example, during the innate immune response to pathogens or the establishment of symbiosis16,17. ...
In the unique double fertilization process in flowering plants, both the egg cell and the neighbouring central cell fuse with a sperm cell each. Here we succeeded in imaging cytosolic Ca2 þ in these two cells, and in the two synergid cells that accompany the gametes during semi-in vivo ...