ArticleThe Plant cell2015
Arabidopsis CBP1 Is a Novel Regulator of Transcription Initiation in Central Cell-Mediated Pollen Tube Guidance.
Article in The Plant cell, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.
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35 citing papers in PubMed, 69 citations in OpenAlex.
- The sperm cell-surface protein GEX3 coordinates with GEX2 and DMP8/9 to mediate sperm-egg adhesion and fusion in Arabidopsis.Plant communications · 2026Article
- Molecular understanding of plant pollination, fertilization, seed development and protoplast regeneration.Science China. Life sciences · 2026Review
- A circadian morning complex modulates far-red light signaling in Arabidopsis.Nature communications · 2025Article
- Female gametophyte development, pollen‒pistil interactions and embryogenic patterns in chicory (Cichorium intybus): a self-incompatibility perspective.Plant cell reports · 2025Article
- Nitrate assimilation pathway is impacted in young tobacco plants overexpressing a constitutively active nitrate reductase or displaying a defective CLCNt2.BMC plant biology · 2024Article
- The Role of Female and Male Genes in Regulating Pollen Tube Guidance in Flowering Plants.Genes · 2024Review
- The general transcription factors (GTFs) of RNA polymerase II and their roles in plant development and stress responses.Critical reviews in biochemistry and molecular biology · 2024Review
- Central cell: the key to determine persistent pollen tube attraction or termination.Science China. Life sciences · 2024Article
- From gametes to zygote: Mechanistic advances and emerging possibilities in plant reproduction.Plant physiology · 2024Review
- Transcription Factors behindPlants (Basel, Switzerland) · 2024Article
- Illumina-based transcriptomic analysis of the fast-growing leguminous treeFrontiers in plant science · 2024Article
- TFIIB-Related Protein BRP5/PTF2 Is Required for Both Male and Female Gametogenesis and for Grain Formation in Rice.International journal of molecular sciences · 2023Article
- Identification and validation of new MADS-box homologous genes in 3010 rice pan-genome.Plant cell reports · 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
- Discovery of aFrontiers in plant science · 2023Article
- The type-B response regulators ARR10, ARR12, and ARR18 specify the central cell in Arabidopsis.The Plant cell · 2022Article
- Genome-wide association study for candidate genes controlling seed yield and its components in rapeseed (Physiology and molecular biology of plants : an international journal of functional plant biology · 2021Article
- Dynamics of the cell fate specifications during female gametophyte development in Arabidopsis.PLoS biology · 2021Article
- Expansion and Functional Diversification of TFIIB-Like Factors in Plants.International journal of molecular sciences · 2021Review
- Cucumber Mosaic Virus Infection inFrontiers in microbiology · 2021Article
Corrections and comments
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Authors and funding
9 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In flowering plants, sperm cells are delivered to the embryo sac by a pollen tube guided by female signals. Both the gametic and synergid cells contribute to pollen tube attraction. Synergids secrete peptide signals that lure the tube, while the role of the gametic cells is unknown. Previously, we showed that CENTRAL CELL GUIDANCE (CCG) is essential for pollen tube attraction in Arabidopsis thaliana, but the molecular mechanism is unclear. Here, we identified CCG BINDING PROTEIN1 (CBP1) and demonstrated that it interacts with CCG, Mediator subunits, RNA polymerase II (Pol II), and central cell-specific AGAMOUS-like transcription factors. In addition, CCG interacts with TATA-box Binding Protein 1 and Pol II as a TFIIB-like transcription factor. CBP1-knockdown ovules are defective in pollen tube attraction. Expression profiling revealed that cysteine-rich peptide (CRP) transcripts were downregulated in ccg ovules. CCG and CBP1 coregulate a subset of CRPs in the central cell and the synergids, including the attractant LURE1. CBP1 is extensively expressed in multiple vegetative tissues and specifically in the central cell in reproductive growth. We propose that CBP1, via interaction with CCG and the Mediator complex, connects transcription factors and the Pol II machinery to regulate pollen tube attraction.
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