Acetylation is an important modification type of histones, which is dynamically regulated by histone acetyltransferases (HATs) and histone deacetylases (HDACs). In this study, the histone acetylation level of Monascus was enhanced through the exogenous addition of the HDACs inhibitor vorinostat, and the regulation effects of histone acetylation on cell growth and secondary metabolism were evaluated. The results demonstrated that the augmentation of histone acetylation level could slightly facilitate sugar consumption, increase biomass weight, a...