We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Lignification of ray parenchyma cells in the xylem of Pinus densiflora. Part II: Microchemical analysis by laser microdissection and thioacidolysis.
- Authors
Zheng, Peiming; Aoki, Dan; Matsushita, Yasuyuki; Yagami, Sachie; Fukushima, Kazuhiko
- Abstract
The lignification of ray parenchyma cells in the sapwood (sW) and heartwood (hW) of Pinus densiflora was investigated by thioacidolysis and the subsequent Raney nickel desulfuration. The samples rich and less rich in ray parenchyma cells were prepared by laser microdissection (LMD). The whole sections burned randomly by the laser served as the controls. Guaiacyl (G) monomers were detected in all the samples, and p-hydroxyphenyl (H) monomers were detectable only in trace amounts, while syringyl (S) units were absent, as expected in softwood. In sW samples rich in ray parenchyma cells, the yields of G monomers are significantly lower than in the other samples. The various types of G-G and one G-H dimers were detected, and the β-1′, β-5′, and 5-5′ dimers were dominant. The relative distributions of lignin interunit linkages were very similar in all the samples regardless of the abundance of the ray parenchyma cells in the sW or hW tissues.
- Subjects
LIGNIFICATION; PLANT parenchyma; XYLEM; JAPANESE red pine; MICROCHEMISTRY; MICRODISSECTION; ACIDOLYSIS
- Publication
Holzforschung: International Journal of the Biology, Chemistry, Physics, & Technology of Wood, 2014, Vol 68, Issue 8, p907
- ISSN
0018-3830
- Publication type
Article
- DOI
10.1515/hf-2013-0232