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Plant Science Today (PST)

Review Articles

Vol. 12 No. sp1 (2025): Recent Advances in Agriculture by Young Minds - II

Seed biopriming: A promising strategy to tackle abiotic stress in plants

DOI
https://doi.org/10.14719/pst.9581
Submitted
23 May 2025
Published
07-10-2025

Abstract

Abiotic stresses such as drought, salinity, high temperatures and heavy metal toxicity significantly reduce crop yield and threaten global food security. Seed biopriming is an eco-friendly and sustainable pre-sowing strategy that enhances plant resilience to these environmental challenges. It involves the use of beneficial microorganisms to colonize seeds, triggering physiological, biochemical and molecular adaptations. Biopriming enhances seed germination, seedling vigour, root architecture and improves nutrient uptake by activating stress-responsive signalling pathways, antioxidant defence mechanisms, accumulation of osmolytes and production of secondary metabolites and plant hormones such as cytokinins and indole-3-acetic acid (IAA). Additionally, it promotes systemic resistance, leading to improved growth of plants and survival under adverse conditions. Compared to other priming methods, biopriming offers long- term benefits by establishing beneficial microbial associations that support plant health throughout the growth cycle. This review highlights the microbial agents used for biopriming, mechanism of action, benefits and current research trends of seed biopriming as a sustainable approach to mitigate abiotic stress in agriculture. Understanding and optimizing this approach can significantly contribute to sustainable agricultural practices by reducing reliance on chemical inputs, thereby preventing environmental hazards, ensuring food safety and mitigating the effects of climate change.

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