{
  "abstract": "The transition from conchocelis to conchosporangial branches is not only a key stage in the life cycle of Pyropia/Porphyra but also directly affects the yield and quality of economically important species such as Pyropia haitanensis. However, the molecular mechanisms underlying the maturation of P. haitanensis filaments remain poorly understood. Hydrogen peroxide (H2O2), as an important signaling molecule, plays a significant role in algae development. This study demonstrated that treatment with the H2O2 scavenger DMTU (500 μmol/L) significantly reduced H2O2 and O2- levels within the algae, affecting the activity of antioxidant enzymes and the content of antioxidant substances. This disrupted the ROS balance, inhibited key pathways such as photosynthesis and nitrogen metabolism, and triggered dysregulation in downstream metabolite synthesis. Consequently, the levels of most amino acids and their derivatives, nucleotides, and lipids were decreased. This diverted energy and resources from the “maturation program” towards a “stress-response program,” thereby delaying conchocelis maturation. Notably, this inhibitory effect was reversible following DMTU removal. When unfavorable conditions necessitate delayed maturation induction, intervention with DMTU could be applied to effectively reduce the risk of conchospore “abortion”. In summary, H2O2 is a critical signaling molecule regulating the maturation of P. haitanensis conchocelis. This study provides a theoretical basis for elucidating the molecular regulatory network governing conchocelis maturation in Pyropia/Porphyra and achieving precise regulation of synchronized maturation.",
  "abstract_shown": true,
  "affiliations": [
    "Fisheries College, Jimei University, Xiamen, China",
    "State Key Laboratory of Mariculture Breeding, Fisheries College, Jimei University, Ningde, China",
    "Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Xiamen, China"
  ],
  "article_type": "research article",
  "arxiv": null,
  "author_total": 6,
  "authors": [
    {
      "affs": [
        0,
        1,
        2
      ],
      "name": "Rong He"
    },
    {
      "affs": [
        0,
        1,
        2
      ],
      "name": "Wenfei Xian"
    },
    {
      "affs": [
        0,
        1,
        2
      ],
      "name": "Yan Xu"
    },
    {
      "affs": [
        0,
        1,
        2
      ],
      "name": "Dehua Ji"
    },
    {
      "affs": [
        0,
        1,
        2
      ],
      "name": "Chaotian Xie"
    },
    {
      "affs": [
        0,
        1,
        2
      ],
      "name": "Wenlei Wang"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/9xw7dgmj0p0rp.bib",
  "cited_by": 0,
  "doi": "10.3389/fpls.2026.1979927",
  "fulltext_url": "https://pmc.ncbi.nlm.nih.gov/articles/PMC13696270/",
  "id": "9xw7dgmj0p0rp",
  "issns": [
    "1664-462X"
  ],
  "landing_url": "https://doi.org/10.3389/fpls.2026.1979927",
  "language": "en",
  "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",
      "1910|Marine and coastal plant biology"
    ]
  ],
  "openalex": "W7221465359",
  "pdf_url": "https://europepmc.org/articles/PMC13696270?pdf=render",
  "pmcid": "PMC13696270",
  "pmid": "42935724",
  "published": "2026-10-12",
  "publisher": "Frontiers Media SA",
  "ris": "https://research.draconitic.com/paper/9xw7dgmj0p0rp.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:39Z",
      "native_id": "PMC13696270",
      "source": "pmc",
      "url": "https://doi.org/10.3389/fpls.2026.1979927"
    },
    {
      "first_seen": "2026-10-30T12:19:25Z",
      "native_id": "10.3389/fpls.2026.1979927",
      "source": "crossref",
      "url": "https://www.frontiersin.org/articles/10.3389/fpls.2026.1979927/full"
    },
    {
      "first_seen": "2026-10-30T12:22:12Z",
      "native_id": "MED:42935724",
      "source": "europepmc",
      "url": "https://europepmc.org/article/MED/42935724"
    }
  ],
  "subjects": [
    {
      "field": "earth",
      "origin": "openalex:1910|Marine and coastal plant biology",
      "subfield": "oceanography"
    }
  ],
  "title": "The molecular mechanisms underlying hydrogen peroxide regulating free-living conchocelis maturation of Pyropia haitanensis",
  "title_text": "The molecular mechanisms underlying hydrogen peroxide regulating free-living conchocelis maturation of Pyropia haitanensis",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:33:38Z",
  "url": "https://research.draconitic.com/paper/9xw7dgmj0p0rp",
  "venue": "Frontiers in Plant Science",
  "versions": []
}