Histone H2B protein is not only structurally important for chromosomal DNA packaging but is also involved in the regulation of gene expression. including the immune response of plants against pathogens. In this study. we show that the potato virus X (PVX) infection resulted in the reduced expression of H2B at both the mRNA and protein level in Nicotiana benthamiana. https://parisnaturalfoodes.shop/product-category/heavenly-sleep-liquid/