Abstract
β-glucan, a major cell wall component of fungal species, functions as an elicitor inducing plant defense activities. The exopolysaccharide from Schizophyllum commune HNU-12 (SC-EP) showed a protective effect on pepper against Phytophthora blight disease. Quantitative real-time PCR revealed that the expression of defense genes, CaBPR1, CaBGLU and CaPR-4 was significantly induced in SC-EP and dl-β-aminobutyric acid-treated pepper leaves. Furthermore, phenolic compounds, phenylalanine ammonia lyase activity and salicylic acid contents increased in SC-EP-treated pepper leaves. Our findings indicate that SC-EP can be used as an elicitor to induce defense activities against Phytophthora blight of pepper.
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