1. Graduate School of Agriculture, Kyoto University, Kitashirakawa-Oiwake-cho, Sakyo-ku,
Kyoto 606-8502, Japan
2. Electron
Microscopy Center, Jena University Hospital, Ziegelmühlenweg 1,
D-07740 Jena, Germany
3. Institute
for Organic Chemistry
and Macromolecular Chemistry, Centre of Excellence for Polysaccharide
Research, Friedrich Schiller University of Jena, Humboldtstrasse 10, D-07743 Jena, Germany