{
  "abstract": "Phosphorus is an essential macronutrient for plant growth and development. Potato is highly sensitive to inorganic phosphate (Pi) availability, yet the function and regulation of StPHR1, a putative core component of plant Pi signaling, remain poorly defined in this crop. Evolutionary analysis, subcellular localization assays, promoter activity analysis, CRISPR/Cas9-mediated gene editing, overexpression, and data-independent acquisition proteomics were used to characterize StPHR1. StPHR1 encoded a nuclear-localized MYB-CC transcription factor, whose promoter exhibits preferential activity in root tips and vascular tissues. Loss of StPHR1 function compromised low-Pi tolerance, reduced Pi accumulation in roots and leaves, and inhibited plant growth, whereas StPHR1 overexpression enhanced low-Pi tolerance and increased both tuber number and average tuber weight under conventional fertilized cultivation. Proteomic profiling showed that StPHR1-dependent Pi starvation responses involve metabolic reprogramming, membrane-lipid remodeling, redox homeostasis, and detoxification. These results identify StPHR1 as a key regulator of Pi accumulation and allocation in potato and provide candidate targets and a molecular framework for improving low-Pi adaptation.",
  "abstract_shown": true,
  "affiliations": [
    "School of Business Administration, Moutai Institute",
    "School of Food Engineering, Moutai Institute",
    "School of Resources and Environmental Engineering, Moutai Institute"
  ],
  "article_type": "research article",
  "arxiv": null,
  "author_total": 5,
  "authors": [
    {
      "affs": [
        0,
        1
      ],
      "name": "Feng Zhang"
    },
    {
      "affs": [
        1
      ],
      "name": "Huaijuan Gou"
    },
    {
      "affs": [
        1
      ],
      "name": "Yanlin An"
    },
    {
      "affs": [
        1
      ],
      "name": "Wenlun Wang"
    },
    {
      "affs": [
        2
      ],
      "name": "Haiyan Zhang"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/0rrycwjrcxjae.bib",
  "cited_by": 0,
  "doi": "10.3389/fpls.2026.1975545",
  "fulltext_url": "https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13730835/?tool=EBI",
  "id": "0rrycwjrcxjae",
  "issns": [
    "1664-462X"
  ],
  "landing_url": "https://www.frontiersin.org/articles/10.3389/fpls.2026.1975545/full",
  "language": "eng",
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "heading",
      "Original Research"
    ],
    [
      "openalex",
      "1110|Plant nutrient uptake and metabolism"
    ]
  ],
  "openalex": "W7223140890",
  "pdf_url": "https://www.frontiersin.org/journals/plant-science/articles/10.3389/fpls.2026.1975545/pdf",
  "pmcid": "PMC13730835",
  "pmid": "42979657",
  "published": "2026-10-21",
  "publisher": "Frontiers Media SA",
  "ris": "https://research.draconitic.com/paper/0rrycwjrcxjae.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:19:25Z",
      "native_id": "10.3389/fpls.2026.1975545",
      "source": "crossref",
      "url": "https://www.frontiersin.org/articles/10.3389/fpls.2026.1975545/full"
    },
    {
      "first_seen": "2026-11-04T15:20:46Z",
      "native_id": "PMC:PMC13730835",
      "source": "europepmc",
      "url": "https://europepmc.org/article/PMC/PMC13730835"
    },
    {
      "first_seen": "2026-11-07T12:23:19Z",
      "native_id": "PMC13730835",
      "source": "pmc",
      "url": "https://doi.org/10.3389/fpls.2026.1975545"
    }
  ],
  "subjects": [
    {
      "field": "biology",
      "origin": "openalex:1110|Plant nutrient uptake and metabolism",
      "subfield": "plant-biology"
    }
  ],
  "title": "The potato (Solanum tuberosum L.) transcription factor StPHR1 responds to low phosphate stress and regulates phosphorus accumulation",
  "title_text": "The potato (Solanum tuberosum L.) transcription factor StPHR1 responds to low phosphate stress and regulates phosphorus accumulation",
  "type": "peer-reviewed",
  "updated_at": "2026-11-07T12:23:19Z",
  "url": "https://research.draconitic.com/paper/0rrycwjrcxjae",
  "venue": "Frontiers in Plant Science",
  "versions": []
}