Fig. 4From: Co-production of polyhydroxybutyrate (PHB) and coenzyme Q10 (CoQ10) via no-sugar fermentation—a case by Methylobacterium sp. XJLWEffect of carbon source on the express of key genes in CoQ10 (a) and PHB (b) biosynthesis pathway via RT-qPCR. Significant differences from glucose group are indicated by *p < 0.05; **p < 0.01Back to article page