ARABINOGALACTAN PROTEINS IN PLANT CELL CULTURES
Por:
Sanchez, AMH, Tafur, JC, Rodríguez-Monroy M., Sepúlveda-Jiménez G.
Publicada:
1 mar 2009
Categoría:
Multidisciplinary
Resumen:
The arabinogalactan proteins (AGPs) are macromolecules found in practically all plant organs, being associated with several aspects of the plant growth and development. These molecules contain carbohydrates and proteins in a 9:1 relation. The carbohydrate moiety is composed mainly of type II arabinogalactans, whereas the protein has particular amino acid domains that allow classifying the AGPs into two groups, classical and non-classical. In addition, the former are characterized by a C-terminal tail that predicts the incorporation of a glycosylphosphatidylinositol group (GPI) that allows the attachment of the AGPs to the plasma membrane. Plant cell cultures of several species release AGPs into the culture medium. The biochemical characteristics of the AGPs released into the medium, and theproposed biochemical and cellular mechanisms by which AGPs participate in plant cell differentiation and growth are reviewed. The plant cells release classical as well as non-classical AGPs into the
Filiaciones:
Sanchez, AMH:
Univ Nacl Autonoma Mexico, Mexico City, DF, Mexico
Rodríguez-Monroy M.:
Univ Nacl Autonoma Mexico, Mexico City, DF, Mexico
Sepúlveda-Jiménez G.:
Univ Nacl Autonoma Mexico, Mexico City, DF, Mexico
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