The ability of land plants to synthesize glucuronoxylans predates the evolution of tracheophytes.

  title={The ability of land plants to synthesize glucuronoxylans predates the evolution of tracheophytes.},
  author={Ameya R. Kulkarni and Maria Valeria Junho Pena and Utku Avci and Koushik Mazumder and Breeanna Rae Urbanowicz and Sivakumar Pattathil and Yanbin Yin and Malcolm A O'Neill and Alison W Roberts and Michael G Hahn and Ying Xu and Alan G. Darvill and William S. York},
  volume={22 3},
Glucuronoxylans with a backbone of 1,4-linked β-D-xylosyl residues are ubiquitous in the secondary walls of gymnosperms and angiosperms. Xylans have been reported to be present in hornwort cell walls, but their structures have not been determined. In contrast, the presence of xylans in the cell walls of mosses and liverworts remains a subject of debate. Here we present data that unequivocally establishes that the cell walls of leafy tissue and axillary hair cells of the moss Physcomitrella… CONTINUE READING
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