Figure 5.

Principal component analysis (PCA) of metabolic profiles in adh1 mutant response to cold stress (six biological replicates). All samples of this investigation are represented. (A) The score plot of PCA model. A, Freezing treatment with cold acclimation (light green) and recovery at 23°C 24 h (deep green); CK, control samples living in 23°C always (blue); S, freezing shock without cold acclimation (light red) and recovery at 23°C 24 h (deep red), adh1 mutant (triangles), and wild type (circles) are shown. Time points are indicated within the graph. (B) The loading plot for the PCA model.