ArticlePlant physiology2014
ABNORMAL POLLEN TUBE GUIDANCE1, an Endoplasmic Reticulum-Localized Mannosyltransferase Homolog of GLYCOSYLPHOSPHATIDYLINOSITOL10 in Yeast and PHOSPHATIDYLINOSITOL GLYCAN ANCHOR BIOSYNTHESIS B in Human, Is Required for Arabidopsis Pollen Tube Micropylar Guidance and Embryo Development.
Article in Plant physiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.
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34 citing papers in PubMed, 56 citations in OpenAlex.
- Mysterious giants in the world of lipids: long linear isoprenoid functions in plant physiology and reproduction.Journal of experimental botany · 2026Review
- Transcriptome profiling of foxtail millet (Setaria italica) pollen and anther.BMC plant biology · 2024Article
- The Role of Female and Male Genes in Regulating Pollen Tube Guidance in Flowering Plants.Genes · 2024Review
- From gametes to zygote: Mechanistic advances and emerging possibilities in plant reproduction.Plant physiology · 2024Review
- Glycosylphosphatidylinositol anchor lipid remodeling directs proteins to the plasma membrane and governs cell wall mechanics.The Plant cell · 2022Article
- Characterization ofFrontiers in plant science · 2022Article
- Arabidopsis AtPRP17 functions in embryo development by regulating embryonic patterning.Planta · 2021Article
- Reproductive developmental transcriptome analysis of Tripidium ravennae (Poaceae).BMC genomics · 2021Article
- Characterization of thePlant signaling & behavior · 2021Article
- Sweet Modifications Modulate Plant Development.Biomolecules · 2021Review
- Review
- Article
- Bridging the GAPs in plant reproduction: a comparison of plant and animal GPI-anchored proteins.Plant reproduction · 2020Review
- AtPIG-S, a predicted Glycosylphosphatidylinositol Transamidase subunit, is critical for pollen tube growth in Arabidopsis.BMC plant biology · 2020Article
- Article
- ROS in the Male-Female Interactions During Pollination: Function and Regulation.Frontiers in plant science · 2020Review
- Glycosylphosphatidylinositol-Anchor Synthesis in Plants: A Glycobiology Perspective.Frontiers in plant science · 2020Article
- Three Decades of Advances in Arabinogalactan-Protein Biosynthesis.Frontiers in plant science · 2020Review
- The Temperature-Dependent Retention of Introns inInternational journal of molecular sciences · 2019Article
- Measuring similarity between gene interaction profiles.BMC bioinformatics · 2019Article
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The perception and response of pollen tubes to the female guidance signals are crucial for directional pollen tube growth inside female tissues, which leads to successful reproduction. In pursuing the mechanisms underlying this biological process, we identified the Arabidopsis (Arabidopsis thaliana) abnormal pollen tube guidance1 (aptg1) mutant, whose pollen tubes showed compromised micropylar guidance. In addition to its male defect, the aptg1 mutant showed embryo lethality. APTG1 encodes a putative mannosyltransferase homolog to human PHOSPHATIDYLINOSITOL GLYCAN ANCHOR BIOSYNTHESIS B and yeast (Saccharomyces cerevisiae) GLYCOSYLPHOSPHATIDYLINOSITOL10 (GPI10), both of which are involved in the biosynthesis of GPI anchors. We found that APTG1 was expressed in most plant tissues, including mature pollen, pollen tubes, mature embryo sacs, and developing embryos. By fluorescence colabeling, we showed that APTG1 was localized in the endoplasmic reticulum, where GPI anchors are synthesized. Disruption of APTG1 affected the localization of COBRA-LIKE10, a GPI-anchored protein important for pollen tube growth and guidance. The results shown here demonstrate that APTG1 is involved in both vegetative and reproductive development in Arabidopsis, likely through processing and proper targeting of GPI-anchored proteins.
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