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Publications

Journal Article Epublish

PubMed: 40070400 DOI: 10.1093/hr/uhae366

Flavonoids as key players in cold tolerance: molecular insights and applications in horticultural crops.

Hortic Res 12(4):uhae366

Authors: Jiaxin Li, Qinhan Yu, Chang Liu, Ningbo Zhang, Weirong Xu

Affiliations

  • College of Enology & Horticulture, Ningxia University, No.498 Helanshan West Street, Xixia District, Yinchuan, Ningxia 750021, China.
  • School of Life Science, Ningxia University, No.498 Helanshan West Street, Xixia District, Yinchuan, Ningxia 750021, China.
  • College of Enology & Horticulture, Ningxia University, No.498 Helanshan West Street, Xixia District, Yinchuan, Ningxia 750021, China. Engineering Research Center of Grape and Wine, Ministry of Education, Ningxia University, No.498 Helanshan West Street, Xixia District, Yinchuan, Ningxia 750021, China. Key Laboratory of Modern Molecular Breeding for Dominant and Special Crops in Ningxia, No.498 Helanshan West Street, Xixia District, Yinchuan 750021, China.
  • College of Enology & Horticulture, Ningxia University, No.498 Helanshan West Street, Xixia District, Yinchuan, Ningxia 750021, China. School of Life Science, Ningxia University, No.498 Helanshan West Street, Xixia District, Yinchuan, Ningxia 750021, China. Engineering Research Center of Grape and Wine, Ministry of Education, Ningxia University, No.498 Helanshan West Street, Xixia District, Yinchuan, Ningxia 750021, China. Key Laboratory of Modern Molecular Breeding for Dominant and Special Crops in Ningxia, No.498 Helanshan West Street, Xixia District, Yinchuan 750021, China. State Key Laboratory of Efficient Production of Forest Resources, No.498 Helanshan West Street, Xixia District, Yinchuan 750021, China.

Abstract

Cold stress profoundly affects the growth, development, and productivity of horticultural crops. Among the diverse strategies plants employ to mitigate the adverse effects of cold stress, flavonoids have emerged as pivotal components in enhancing plant resilience. This review was written to systematically highlight the critical role of flavonoids in plant cold tolerance, aiming to address the increasing need for sustainable horticultural practices under climate stress. We provide a comprehensive overview of the role of flavonoids in the cold tolerance of horticultural crops, emphasizing their biosynthesis pathways, molecular mechanisms, and regulatory aspects under cold stress conditions. We discuss how flavonoids act as antioxidants, scavenging reactive oxygen species (ROS) generated during cold stress, and how they regulate gene expression by modulating stress-responsive genes and pathways. Additionally, we explore the application of flavonoids in enhancing cold tolerance through genetic engineering and breeding strategies, offering insights into practical interventions for improving crop resilience. Despite significant advances, a research gap remains in understanding the precise molecular mechanisms by which specific flavonoids confer cold resistance, especially across different crop species. By addressing current knowledge gaps, proposing future research directions and highlighting implications for sustainable horticulture, we aim to advance strategies to enhance cold tolerance in horticultural crops.

MeSH

Genes, Cold Temperature, Stress, Physiological, Research, Flavonoids

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