摘要：In order to explore the chemical compounds root exudations in relationship to the Bisphenol A stimulation, the plants of reed and cattail were cultured under 0 mg/L and 20 mg/L BPA for 3 and 6 days. Including sugars, organic acids, amino acids and alcohols, 76 kinds of compounds were detected in the root exudations of reed and cattail by gas chromatography-mass spectrometry (GC-MS). Then the analysis results of principal component analysis (PCA) and orthogonal partial least-squares discrimination analysis (OPLS-DA) indicated that the quantity or composition of root exudations released from reed and cattail at different BPA stimulation levels and culturing time were obviously different. In order to further find the potential biomarkers of reed and cattail in root exudations, combining with OPLS-DA loading plots, the variable importance for the projection (VIP>1) and the analysis of variance (ANOVA, p < 0.05) were applied as the limiting conditions. 14 and 12 compounds were identified as the potential biomarkers in the root exudations of reed and cattail, separately.
关键词：Metabonomics;root exudations;bisphenol A;biomarkers;reed and cattail
