Fig. 5
From: Screening and evaluation of the strong endogenous promoters in Pichia pastoris
Evaluation of the promoter candidates through the β-carotene biosynthetic pathway. A The fourteen engineering strains with significant color differences grown on the YPD agar plate. B The production of β-carotene of the selected engineering strains. Error bars indicate the SD for samples tested in triplicate. C Heat map of the transcriptional levels (blue) and the β-carotene productions (orange)