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<p>The wine grape industry in the Ningxia region has shown promising development, but frequent late frost damage severely hinders its industrial upgrading. This damage significantly impairs grape growth, development, and berry quality. This study focuses on an in-depth analysis of the molecular mechanisms of wine grape frost damage repair, and GO and KEGG enrichment analyses were performed on differentially expressed gene sets. GO enrichment analysis revealed that frost damage repair significantly affects functions related to chloroplasts, ribosomes, and plasma membranes, including photosynthesis, protein synthesis, and cell homeostasis maintenance. KEGG pathway analysis indicated that photosynthesis, metabolic pathways, and photosynthetic carbon fixation are closely linked to frost damage recovery, with the photosynthetic pathway being a key research direction. The study found that the LOC100259565 gene plays a core role in the photosynthetic pathway. Its transcription is suppressed during frost damage, leading to impaired photosystem I function and reduced photosynthetic efficiency. During frost damage repair, the gene expression is upregulated, promoting photosystem I repair, photosynthetic efficiency recovery, and the synthesis of frost-resistant metabolites. This study deeply reveals the response mechanism of wine grapes to frost damage, providing solid theoretical support and potential gene regulatory targets for the Ningxia wine grape industry to prevent late frost damage. The aim is to enhance the grape’s resistance to frost damage and ensure the industry’s stable development.</p>

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Molecular Basis of Biostimulant-enhanced Recovery from Late-spring Frost in Vitis Vinifera: A Transcriptomic Dissection

  • 期刊论文

  • 发表日期：

    2026年3月9日

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  • Chaoyue Feng,
  • Xi Chen,
  • Xinyi Luo,
  • Huiyu Zhu,
  • Huiling Ma,
  • Xiaojun Liu,
  • Yulong Li,
  • Quan Sun,
  • Rui Wang,
  • Yaqi Wang

摘要

The wine grape industry in the Ningxia region has shown promising development, but frequent late frost damage severely hinders its industrial upgrading. This damage significantly impairs grape growth, development, and berry quality. This study focuses on an in-depth analysis of the molecular mechanisms of wine grape frost damage repair, and GO and KEGG enrichment analyses were performed on differentially expressed gene sets. GO enrichment analysis revealed that frost damage repair significantly affects functions related to chloroplasts, ribosomes, and plasma membranes, including photosynthesis, protein synthesis, and cell homeostasis maintenance. KEGG pathway analysis indicated that photosynthesis, metabolic pathways, and photosynthetic carbon fixation are closely linked to frost damage recovery, with the photosynthetic pathway being a key research direction. The study found that the LOC100259565 gene plays a core role in the photosynthetic pathway. Its transcription is suppressed during frost damage, leading to impaired photosystem I function and reduced photosynthetic efficiency. During frost damage repair, the gene expression is upregulated, promoting photosystem I repair, photosynthetic efficiency recovery, and the synthesis of frost-resistant metabolites. This study deeply reveals the response mechanism of wine grapes to frost damage, providing solid theoretical support and potential gene regulatory targets for the Ningxia wine grape industry to prevent late frost damage. The aim is to enhance the grape’s resistance to frost damage and ensure the industry’s stable development.