Figure 1. Detected lipid classes and the numbers of lipid molecular species in (A). B. pseudotriquetrum in ESI+, (B). P. patens in ESI+, (C). B. pseudotriquetrum in ESI-, and (D)P. patens in ESI-. PC, phosphatidylcholine; LPC, lysophosphatidylcholine; PE, phosphatidylethanolamine; PG, phosphatidylglycerol; PI, phosphatidylinositol; PA, phosphatidic acid; PMeOH, phosphatidylmethanol; MGDG, monogalactosyldiacylglycerol; DGDG, digalactosyldiacylglycerol; SQDG, sulfoquinovosyldiacylglycerol; Cer, ceramides; HexCer, hexosylceramide; DG, diglyceride; TG, triglyceride; SL, sulfonolipid; FA, fatty acids