ArticleThe Plant cell2012
FIMBRIN1 is involved in lily pollen tube growth by stabilizing the actin fringe.
Article in The Plant cell, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 1 of them a synthesis that pooled it.
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Who cites it
31 citing papers in PubMed, 1 synthesis or guideline pooled it, 61 citations in OpenAlex.
- A multiscale growth atlas of Arabidopsis: linking cell dynamics to organ development.The New phytologist · 2026Pooled it
- FIMBRIN2 Regulates ABA-Induced Stomatal Closure by Promoting Microfilament Bundling and Turnover in Arabidopsis Guard Cells.Plant direct · 2026Article
- Cytoskeletal control of development and environmental adaptation in plants.Science China. Life sciences · 2026Review
- Over-expression of GhACTIN1 under the control of GhSCFP promoter improves cotton fiber and yield.Scientific reports · 2023Article
- Exploring the Role of the Plant Actin Cytoskeleton: From Signaling to Cellular Functions.International journal of molecular sciences · 2023Review
- Role of Actin Dynamics andGenes · 2023Review
- Actin-bundling protein fimbrin regulates pathogenicity via organizing F-actin dynamics during appressorium development in Colletotrichum gloeosporioides.Molecular plant pathology · 2022Article
- Phospholipase Dδ regulates pollen tube growth by modulating actin cytoskeleton organization inPlant signaling & behavior · 2021Article
- The quest for the central players governing pollen tube growth and guidance.Plant physiology · 2021Review
- Magnaporthe oryzae fimbrin organizes actin networks in the hyphal tip during polar growth and pathogenesis.PLoS pathogens · 2020Article
- Control of the Actin Cytoskeleton Within Apical and Subapical Regions of Pollen Tubes.Frontiers in cell and developmental biology · 2020Review
- The Balance between Actin-Bundling Factors Controls Actin Architecture in Pollen Tubes.iScience · 2019Article
- Actin Bundles in The Pollen Tube.International journal of molecular sciences · 2018Review
- Rice Morphology Determinant-Mediated Actin Filament Organization Contributes to Pollen Tube Growth.Plant physiology · 2018Article
- The Actin Cytoskeleton: Functional Arrays for Cytoplasmic Organization and Cell Shape Control.Plant physiology · 2018Review
- Interplay between Ions, the Cytoskeleton, and Cell Wall Properties during Tip Growth.Plant physiology · 2018Review
- The Structurally Plastic CH2 Domain Is Linked to Distinct Functions of Fimbrins/Plastins.The Journal of biological chemistry · 2016Article
- CASEIN KINASE1-LIKE PROTEIN2 Regulates Actin Filament Stability and Stomatal Closure via Phosphorylation of Actin Depolymerizing Factor.The Plant cell · 2016Article
- Arabidopsis FIM5 decorates apical actin filaments and regulates their organization in the pollen tube.Journal of experimental botany · 2016Article
- HLB1 Is a Tetratricopeptide Repeat Domain-Containing Protein That Operates at the Intersection of the Exocytic and Endocytic Pathways at the TGN/EE in Arabidopsis.The Plant cell · 2016Article
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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
An actin fringe structure in the subapex plays an important role in pollen tube tip growth. However, the precise mechanism by which the actin fringe is generated and maintained remains largely unknown. Here, we cloned a 2606-bp full-length cDNA encoding a deduced 77-kD fimbrin-like protein from lily (Lilium longiflorum), named FIMBRIN1 (FIM1). Ll-FIM1 was preferentially expressed in pollen and concentrated at actin fringe in the subapical region, as well as in longitudinal actin-filament bundles in the shank of pollen tubes. Microinjection of Ll-FIM1 antibody into lily pollen tubes inhibited tip growth and disrupted the actin fringe. Furthermore, we verified the function of Ll-FIM1 in the fim5 mutant of its closest relative, Arabidopsis thaliana. Pollen tubes of fim5 mutants grew with a larger diameter in early stages but could recover into normal forms in later stages, despite significantly slower growth rates. The actin fringe of the fim5 mutants, however, was impaired during both early and late stages. Impressively, stable expression of fim5pro:GFP:Ll-FIM1 rescued the actin fringe and the growth rate of Arabidopsis fim5 pollen tubes. In vitro biochemical analysis showed that Ll-FIM1 could bundle actin filaments. Thus, our study has identified a fimbrin that may stabilize the actin fringe by cross-linking actin filaments into bundles, which is important for proper tip growth of lily pollen tubes.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.