| Literature DB >> 16665516 |
A Camirand1, D Brummell, G Maclachlan.
Abstract
Microsomal membranes from elongating regions of etiolated Pisum sativum stems were separated by rate-zonal centrifugation on Renografin gradients. The transfer of labeled fucose and xylose from GDP-[(14)C] fucose and UDP-[(14)C]xylose to xyloglucan occurred mainly in dictyosomeenriched fractions. No transferase activity was detected in secretory vesicle fractions. Pulse-chase experiments using pea stem slices incubated with [(3)H]fucose suggest that xyloglucan chains are fucosylated and their structure completed within the dictyosomes, before being transported to the cell wall by secretory vesicles.Entities:
Year: 1987 PMID: 16665516 PMCID: PMC1056664 DOI: 10.1104/pp.84.3.753
Source DB: PubMed Journal: Plant Physiol ISSN: 0032-0889 Impact factor: 8.340