{
  "abstract": "In Brassicaceae, self-incompatibility is initiated when the pollen ligand SP11/SCR activates the cognate stigma receptor kinase SRK. Although this interaction is usually considered at a single pollen-papilla interface, individual papilla cells encounter mixed pollen loads. Here, using a self-incompatibility-reconstituted Arabidopsis thaliana system, we show that self-pollen recognition transiently delays the hydration and germination of neighboring nonself pollen. The delay was stronger when two self-pollen grains were present but largely disappeared when nonself pollen was applied 2 h after self pollen. Repollination after removal of a self-pollen grain nevertheless revealed persistent inhibition at the original contact site. Live imaging with Lifeact-tdTomato showed that self-pollination transiently broadened F-actin orientations throughout the papilla cell, followed by recovery toward the longitudinal organization of unpollinated cells. Upon self- and non-self-dual pollination, actin-bundle orientation returned toward the papilla long axis prior to the delayed hydration of the non-self-pollen. These observations support the view that the nature of the self-recognition signaling produces a reversible, papilla-wide state that temporarily reduces compatible-pollen acceptance, while local self-rejection persists at the original contact site.",
  "abstract_shown": true,
  "affiliations": [
    "University of Tokyo"
  ],
  "article_type": "New results",
  "arxiv": null,
  "author_total": 2,
  "authors": [
    {
      "name": "Y. Inoue"
    },
    {
      "affs": [
        0
      ],
      "name": "S. Fujii"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/5hg8cmr82cq76.bib",
  "cited_by": 0,
  "doi": "10.64898/2026.09.10.750793",
  "fulltext_url": "https://www.biorxiv.org/content/10.64898/2026.09.10.750793v1.full",
  "id": "5hg8cmr82cq76",
  "issns": [],
  "landing_url": "https://www.biorxiv.org/content/10.64898/2026.09.10.750793v1",
  "language": null,
  "licence": "CC-BY",
  "licence_label": "CC BY",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "biorxiv",
      "plant biology"
    ],
    [
      "openalex",
      "1312|Plant Reproductive Biology"
    ]
  ],
  "openalex": "W7213177667",
  "pdf_url": "https://www.biorxiv.org/content/10.64898/2026.09.10.750793v1.full.pdf",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-10",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/5hg8cmr82cq76.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:22:08Z",
      "native_id": "10.64898/2026.09.10.750793",
      "source": "biorxiv",
      "url": "https://www.biorxiv.org/content/10.64898/2026.09.10.750793v1"
    }
  ],
  "subjects": [
    {
      "field": "biology",
      "origin": "biorxiv:plant biology",
      "subfield": "plant-biology"
    }
  ],
  "title": "Stigmatic papilla cells recover nonself pollen acceptance after self-pollen recognition",
  "title_text": "Stigmatic papilla cells recover nonself pollen acceptance after self-pollen recognition",
  "type": "preprint",
  "updated_at": "2026-10-30T12:22:08Z",
  "url": "https://research.draconitic.com/paper/5hg8cmr82cq76",
  "venue": "bioRxiv",
  "versions": []
}