Lophocolea heterophylla

Lignans of another type, dicarboxylic acid lignans (p-hydroxycinnamate dimers), were isolated from liverworts (Hepaticopsida) and some vascular plants [11, 64]. Little is known about the biosynthesis of this class of lignans, but a feeding experiment demonstrated the conversion of caffeic acid to optically pure epiphyllic acid in a liyerwoTt Lophocolea heterophylla (Fig. 12.9) [65]. 

Tazaki H, HayashidaT, IshikawaFet al (1999) lignan biosynthesis of liverworts Jamesoniella autumnalis and Lophocolea heterophylla. Tetrahedron Lett 40 101-104... 

Prelunularic acid (13) (Fig. 10.6) is the major compound accumulated by cell cultures of Marchantia polymorpha, Jungermannia subulata, Lophocolea heterophylla, and Ca-... 

Pectins.—During growth, the leafy liverwort Lophocolea heterophylla produces sporophytes with seta cells that elongate 50-fold in 3—4 days. The pectic fraction of the seta cells contains more D-mannose, L-fucose, and L-rhamnose, but less L-arabinose and o-xylose, than are usually found in the cells of vascular plants. The proportion of hexuronic acid residues increases during elongation. 

Lophocolea heterophylla (Schrad.) Dumort. AF231889 U87076... 

Violaxanthin Asterella californica Lophocolea bidentata Lophocolea heterophylla Marchantia polymorpha Pellia epiphylla Sphaerocarpus donnellii... 

Taylor, J., R. J. Thomas, and J. G. Otero Chromatographic and Spectrophotometric Analyses of the Photosynthetic Pigments of the Gametophyte and the Sporophyte of Lophocolea heterophylla. Bryologist 75, 36 (1972). 

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