ArticleDevelopment (Cambridge, England)2018
Pollen differentiation as well as pollen tube guidance and discharge are independent of the presence of gametes.
Article in Development (Cambridge, England), 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed.
- Molecular understanding of plant pollination, fertilization, seed development and protoplast regeneration.Science China. Life sciences · 2026Review
- Distinct functions of microtubules and actin filaments in the transportation of the male germ unit in pollen.Nature communications · 2024Article
- The miRNome function transitions from regulating developmental genes to transposable elements during pollen maturation.The Plant cell · 2022Article
- From birth to function: Male gametophyte development in flowering plants.Current opinion in plant biology · 2021Review
- AtLURE1/PRK6-mediated signaling promotes conspecific micropylar pollen tube guidance.Plant physiology · 2021Article
- Persistent directional growth capability in Arabidopsis thaliana pollen tubes after nuclear elimination from the apex.Nature communications · 2021Article
- Article
- The aquatic carnivorous plant Aldrovanda vesiculosa (Droseraceae) exhibits altered developmental stages in male gametophyte.Protoplasma · 2021Article
- Targeted reprogramming of H3K27me3 resets epigenetic memory in plant paternal chromatin.Nature cell biology · 2020Article
Corrections and comments
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
After meiosis, an unequal cell division generates the male gamete lineage in flowering plants. The generative cell will undergo a second division, giving rise to the two gametes, i.e. the sperm cells. The other cell will develop into the vegetative cell that plays a crucial role in pollen tube formation and sperm delivery. Recently, the vegetative cell has been suggested to be important for programming of the chromatin state in sperm cells and/or the resulting fertilization products. Blocking the initial unequal division genetically, we first highlight that the default differentiation state after male meiosis is a vegetative fate, which is consistent with earlier work. We find that uni-nucleated mutant microspores differentiated as wild-type vegetative cells, including chromatin remodeling and the transcriptional activation of transposable elements. Moreover, live-cell imaging revealed that this vegetative cell is sufficient for the correct guidance of the pollen tube to the female gametes. Hence, we conclude that vegetative cell differentiation and function does not depend on the formation or presence of the actual gametes but rather on external signals or a cell-autonomous pace keeper.
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