Symplastic and apoplastic sugar contents in gall tissues and callus of the sumac (Rhus chinensis MILL.) |
| |
Authors: | Up Dong Yeo Youn Kyung Chae Won Koo Lee Sang Sup So Naoki Sakurai |
| |
Institution: | (1) Faculty of Biological Science, College of Natural Sciences, Chonbuk National University, 561-756 Chonju, Korea;(2) Faculty of Integrated Arts and Sciences, Hiroshima University, Higashi-Hiroshima 739, Japan |
| |
Abstract: | To elucidate the role of cell wall in interaction with gall-inducing organisms, symplastic and apoplastic sugar contents in
different shapes of gall tissue of the sumac (Rhus chinensis Mill.) were compared with those of the callus. The gall tissues with vascular cylinders, intercellular spaces and callus
were fractionated into symplastic methanol (MeOH), hot water (HW), and starch] fractions and apoplastic pectin, hemicellulose,
trifluoroacetic acid (TFA)-soluble, and cellulose] fractions. Symplastic sugar content of gall tissues was higher than that
of callus. In apoplastic (cell wall) fractions, the cellulose content of gall tissues was lower than that of callus, due to
large amount of pectin with high ratio of uronic acid (UA) and hemicellulose with low ratio of UA. Analysis of neutral sugar
component of the hemicellulosic, TFA-soluble fraction showed that arabinose (side chain) and galactose (backbone) of arabinogalactan
were rich in gall tissues and callus. The gall tissues had higher glucose and lower xylose contents than the callus. These
results suggest that the structure of cell wall polysaccharides of gall changed during its development with an increase in
symplastic sugar contents. The feeding activities occuring in gall by the gall-inducers were discussed. |
| |
Keywords: | apoplast cell wall polysaccharide Rhus chinensis gall tissue sugar content symplast |
本文献已被 SpringerLink 等数据库收录! |
|