Restructuring of wall-bound xyloglucan by transglycosylation in living plant cells.

@article{Thompson2001RestructuringOW,
  title={Restructuring of wall-bound xyloglucan by transglycosylation in living plant cells.},
  author={J. E. Thompson and Stephen C Fry},
  journal={The Plant journal : for cell and molecular biology},
  year={2001},
  volume={26 1},
  pages={
          23-34
        }
}
  • J. Thompson, S. Fry
  • Published 1 April 2001
  • Biology, Medicine
  • The Plant journal : for cell and molecular biology
Xyloglucan endotransglycosylases (XETs) cleave and then re-join xyloglucan chains and may thus contribute to both wall-assembly and wall-loosening. The present experiments demonstrate the simultaneous occurrence in vivo of two types of interpolymeric transglycosylation: "integrational" (in which a newly secreted xyloglucan reacts with a previously wall-bound one) and "restructuring" (in which one previously wall-bound xyloglucan reacts with another). Xyloglucans synthesised by cultured rose… Expand
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TLDR
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TLDR
It is concluded that XET-catalysed interpolymeric transglycosylation accompanies, and probably causes, the integration of newly secreted xyloglucan into the cell-wall architecture. Expand
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The results provide the first evidence that polymeric xyloglucans are subject in vivo to cleavage followed by transfer of the cut end on the other xylglucan-related molecules, and may be relevant to the understanding of plant cell growth. Expand
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It is proposed that XET is responsible for cutting and rejoining intermicrofibrillar xyloglucan chains and that it thus causes the wall-loosening required for plant cell expansion. Expand
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TLDR
The hypothesis that different XET isoenzymes are adapted to produce longer or shorter products such as might favour either the efficient integration of new xyloglucan into the cell wall or the re-structuring of old xylglucan within an expanding wall is not supported. Expand
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TLDR
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