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. 2014 Apr 2;9(4):e92299. doi: 10.1371/journal.pone.0092299

Figure 2. Differential Jacobian of Col-0 under conditions of light and extended night.

Figure 2

Bars represent the log2-ratio of the entries in the Jacobian matrices of Col-0 under conditions of light (L) and extended night (EN), which were derived from covariance data of metabolomics data sets. Blue colour indicates a ratio >1, i.e. the Jacobian entry of the samples of extended night was higher than under normal light. White colour indicates a ratio <1, i.e. the Jacobian entry of the samples of extended night was lower than under normal light. All entries represent median values of 103 calculations normalised to the square of interquartile distance. (A) Inline graphic and Inline graphic characterize the entries of the Jacobian matrix and refer to equation 1. (B) shows the diagonal entries of the Jacobian matrix belonging to the metabolites described on the horizontal axis.