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Characterization of hemicellulose during xylogenesis in rare tree species Castanopsis hystrix.
- Source :
-
International journal of biological macromolecules [Int J Biol Macromol] 2022 Jul 01; Vol. 212, pp. 348-357. Date of Electronic Publication: 2022 May 24. - Publication Year :
- 2022
-
Abstract
- Hemicellulose is an important component of the plant cell wall which vary in structure and composition between plant species. The research of hemicellulose structures is primarily focused on fast-growing plants during xylogenesis, with slow-growing and rare trees receiving the least attention. Here, hemicellulose structure of the rare species Castanopsis hystrix during xylogenesis was analyzed. Acetyl methyl glucuronide xylan was the most common type of hemicellulose in C. hystrix, with a unique tetrasaccharide structure at the reducing end. Hemicellulose type, structure, molecular weight, thermal stability, biosynthesis and acetyl substitution content and pattern remained stable during the xylogenesis in C. hystrix, which could be attributed to its slow growth. The stable polymer type, low side chain modification and high acetyl substitution of hemicellulose throughout the stems are among the reasons for the hardness and corrosion resistance properties of C. hystrix wood. Genetic modification can be used to improve these properties.<br /> (Copyright © 2022. Published by Elsevier B.V.)
- Subjects :
- Polysaccharides chemistry
Wood
Fagaceae
Trees
Subjects
Details
- Language :
- English
- ISSN :
- 1879-0003
- Volume :
- 212
- Database :
- MEDLINE
- Journal :
- International journal of biological macromolecules
- Publication Type :
- Academic Journal
- Accession number :
- 35623456
- Full Text :
- https://doi.org/10.1016/j.ijbiomac.2022.05.141