ArticleProceedings of the National Academy of Sciences of the United States of America2021
Plant egg cell fate determination depends on its exact position in female gametophyte.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed, 30 citations in OpenAlex.
- A MAPK cascade regulates nuclear migration during female gametogenesis to establish specific cell identity and rice female fertility.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- Female gametophyte development, pollen‒pistil interactions and embryogenic patterns in chicory (Cichorium intybus): a self-incompatibility perspective.Plant cell reports · 2025Article
- Article
- Unlocking fertility in the female gametophyte: a DEAD-box RNA helicase is essential for embryo sac development and seed setting.Journal of experimental botany · 2024Article
- Twin Embryos inPlants (Basel, Switzerland) · 2024Article
- Embryo sac cellularization defects lead to supernumerary egg cells and twin embryos iniScience · 2024Article
- From gametes to zygote: Mechanistic advances and emerging possibilities in plant reproduction.Plant physiology · 2024Review
- Nuclear Fusion in Yeast and Plant Reproduction.Plants (Basel, Switzerland) · 2023Article
- Spatiotemporal formation of the large vacuole regulated by the BIN2-VLG module is required for female gametophyte development in Arabidopsis.The Plant cell · 2023Article
- F-actin regulates the polarized secretion of pollen tube attractants in Arabidopsis synergid cells.The Plant cell · 2023Article
- Mutation of DEFECTIVE EMBRYO SAC1 results in a low seed-setting rate in rice by regulating embryo sac development.Journal of experimental botany · 2023Article
- Overcoming roadblocks forFrontiers in plant science · 2023Review
- The type-B response regulators ARR10, ARR12, and ARR18 specify the central cell in Arabidopsis.The Plant cell · 2022Article
- Tonoplast proton pumps regulate nuclear spacing of female gametophytesFrontiers in plant science · 2022Article
- Cross Inhibition of MPK10 and WRKY10 Participating in the Growth of Endosperm inFrontiers in plant science · 2021Article
Corrections and comments
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Authors and funding
7 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Plant fertilization involves both an egg cell, which fuses with a sperm cell, and synergid cells, which guide pollen tubes for sperm cell delivery. Therefore, egg and synergid cell functional specifications are prerequisites for successful fertilization. However, how the egg and synergid cells, referred to as the "egg apparatus," derived from one mother cell develop into distinct cell types remains an unanswered question. In this report, we show that the final position of the nuclei in female gametophyte determines the cell fate of the egg apparatus. We established a live imaging system to visualize the dynamics of nuclear positioning and cell identity establishment in the female gametophyte. We observed that free nuclei should migrate to a specific position before egg apparatus specialization. Artificial changing in the nuclear position on disturbance of the actin cytoskeleton, either in vitro or in vivo, could reset the cell fate of the egg apparatus. We also found that nuclei of the same origin moved to different positions and then showed different cell identities, whereas nuclei of different origins moved to the same position showed the same cell identity, indicating that the final positions of the nuclei, rather than specific nucleus lineage, play critical roles in the egg apparatus specification. Furthermore, the active auxin level was higher in the egg cell than in synergid cells. Auxin transport inhibitor could decrease the auxin level in egg cells and impair egg cell identity, suggesting that directional and accurate auxin distribution likely acts as a positional cue for egg apparatus specialization.
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