Fig. 4From: Transcriptomic and metabolomic analyses reveal mechanisms of adaptation to salinity in which carbon and nitrogen metabolism is altered in sugar beet rootsRoot metabolome variation among samples as determined by principal component analysis (PCA). a Positive electrospray ionization (ESI) mode, b negative ESI mode; PC1 represents the first principal component; PC2 represents the second principal component. CK_1, control on day 1; CK_7, control on day 7; S_1, salt on day 1; S_7, salt on day 1; QC, quality control (a mixture of experimental samples prepared in equal amounts). The data shown are the means of eight biological replicatesBack to article page