Dual functional role of Salicylic acid against Fusarium; long lasting priming and direct immediate effect
Journal Title: International Journal of Farming and Allied Sciences - Year 2015, Vol 4, Issue 5
Abstract
Priming of defense is a strategy in use by plants exposed to stress to enhance resistance against future stress episodes with minimal associated costs on growth. Here, we test the hypothesis that application of priming agents to seeds can result in plants with primed defenses. SAR is associated with priming for salicylate (SA)-dependent defense that acts against biotrophic and hemibiotrophic pathogens. In this work, we measured resistance to some Fusarium species in wheat (Triticum aestivum L.) plants grown from seed treated with salicylic acid (SA). Our results showed that Plants grown from SA-treated seed showed increased resistance against FHB. According to our results, priming by seed treatments was not accompanied by reductions in growth, and may therefore be suitable for commercial exploitation. We also, showed that mycelia growth and conidia germination of Fusarium graminearum, Fusarium pesudograminearum and Fusarium oxysporum were significantly inhibited in the presence of SA. Our results demonstrated that SA has a significant and direct impact on Fusarium species through a reduction in efficiency of germination and growth at higher concentrations.
Authors and Affiliations
Mona Sorahinobar, Akbar Jahedi, Naser Safaie, Vahid Niknam and Hassan Ebrahimzadeh
Keywords
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