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<p>Lectins are a&#xa0;ubiquitous class of carbohydrate-binding proteins that play essential roles in regulating diverse abiotic and biotic stress responses. Recent studies have identified 14&#xa0;subfamilies of plant lectins, though only a&#xa0;few have demonstrated responsiveness to abiotic stress. However, the molecular mechanisms by which they function remain poorly understood. Among these, the EUL, nictaba, jacalin, and malectin lectins have shown promise in improving abiotic stress tolerance through transgenic and genome-editing approaches. A&#xa0;major challenge to sustainable agriculture is the environmental stress exacerbated by climate change. Enhancing crop climate resilience is a&#xa0;critical strategy for ensuring global food security. Plant immune responses are significantly influenced by lectins, which participate in various signalling cascades and regulatory networks. This review highlights recent advances in understanding how lectins modulate signalling pathways and metabolic adjustments, as well as how molecular regulation of lectins and their downstream genes contribute to plant responses to abiotic stress. Emerging evidence suggests that lectins hold potential as tools for enhancing climate resilience in crops.</p>

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Beyond Carbohydrate Binding: Lectin-Domain Proteins in Crop Stress Resilience

  • 期刊论文

  • 发表日期：

    2026年6月17日

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  • Salman Sahid,
  • Shuvobrata Majumder

摘要

Lectins are a ubiquitous class of carbohydrate-binding proteins that play essential roles in regulating diverse abiotic and biotic stress responses. Recent studies have identified 14 subfamilies of plant lectins, though only a few have demonstrated responsiveness to abiotic stress. However, the molecular mechanisms by which they function remain poorly understood. Among these, the EUL, nictaba, jacalin, and malectin lectins have shown promise in improving abiotic stress tolerance through transgenic and genome-editing approaches. A major challenge to sustainable agriculture is the environmental stress exacerbated by climate change. Enhancing crop climate resilience is a critical strategy for ensuring global food security. Plant immune responses are significantly influenced by lectins, which participate in various signalling cascades and regulatory networks. This review highlights recent advances in understanding how lectins modulate signalling pathways and metabolic adjustments, as well as how molecular regulation of lectins and their downstream genes contribute to plant responses to abiotic stress. Emerging evidence suggests that lectins hold potential as tools for enhancing climate resilience in crops.