3rd Edition Of Plant Science and Molecular Biology World Conference 2026

Abstract

In the past two decades, studies have demonstrated that wheat infested with Russian wheat aphid (RWA) changes its biochemical and physiological functions. These changes include increased β-1,3-glucanase and peroxidase (POD) activity in the resistant cultivars. The POD activity is associated with reactive oxygen species quenching; however, the β-1,3-glucanase physiological function is not fully understood. Here, we reviewed the cell wall-related roles of PODs and β-1,3-glucanases and their implication on plant biochemical and physiological processes during biotic stress, particularly RWA infestation. The literature review demonstrated that β-1,3-glucanases cell wall isozymes regulate callose accumulation in the resistant wheat cultivar, improving the transport of signalling molecules within RWA-infested plants. In other plant systems, the β-1,3-glucanases activity is linked with the formation of the non-penetration papillae (NPP), while the POD is associated with the lignification of the NPP. These cell wall modifications deter RWA feeding and improve plant health. In addition, there is increasing evidence that β-1,3-glucan oligosaccharides trigger pattern immune responses during the plant-pest/pathogen interaction, possibly indicating that the upregulation of β-1,3-glucanases activity in resistant cultivars can induce this type of defense response during RWA-wheat interaction. The conclusion proposed that PODs and β-1,3-glucanases activities are central to cell wall reinforcements and induction of immune responses in the resistant wheat infested with RWA.