柳杉幼木由早木向晚木转变过程中半纤维素结构的变化

IF 0.9 4区农林科学 Q3 MATERIALS SCIENCE, PAPER & WOOD

Wood Research Pub Date : 2023-06-28 DOI:10.37763/wr.1336-4561/68.3.413424

Y. Mori, Mio Nakajima, Akihiro Ishida, Noboru Ito, Y. Kurata, K. Shimizu, Y. Katayama, M. Kiguchi, K. Yamashita, Takeshi Fujiwara, M. Tonosaki

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引用次数: 0

摘要

研究了两种杉木(C-Boka和T-Boka)的早木(EW)和晚木(LW)中半纤维素的化学组成和结构变化。这些树在不同的生长条件下种植:C-Boka在森林中生长缓慢，而T-Boka在营养丰富和阳光充足的地方生长迅速。在半纤维素的化学结构方面，阿拉伯糖醛酸(AGX)在EW - LW过渡过程中与葡萄糖醛酸的侧链取代率不同，分子量也不同。相比之下，在EW和LW之间，葡萄糖甘露聚糖/半乳糖葡萄糖甘露聚糖(GM/GGM)的基本组成相对没有变化。AGX和GM/GGM从EW到LW的变化在C-Boka和T-Boka之间存在差异，可能受树木生长速度的影响。

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CHANGES IN HEMICELLULOSE STRUCTURE ASSOCIATED WITH THE TRANSITION FROM EARLYWOOD TO LATEWOOD AT JUVENILE WOOD IN CRYPTOMERIA JAPONICA

The chemical composition and variations in chemical structure of hemicellulose in earlywood (EW) and latewood (LW) of two individual Japanese cedar trees (C-Boka and T-Boka) were investigated. The trees were cultivated under different growth conditions: C-Boka grew slowly in a forest, while T-Boka grew rapidly in a location rich in nutrients and sunshine. For the chemical structure of hemicellulose, arabinoglucuronoxylan (AGX) showed varied side-chain substitution rates with glucuronic acid and different molecular weights in the transition between EW and LW. In contrast, the fundamental composition of glucomannan/galactoglucomannan (GM/GGM) was relatively unchanged between EW and LW. The modification of AGX and GM/GGM from EW to LW differed between C-Boka and T-Boka and might be influenced by the growth rate of the trees.

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来源期刊

Wood Research 工程技术-材料科学：纸与木材

CiteScore

2.40

自引率

15.40%

发文量

审稿时长

5.4 months

期刊介绍： Wood Research publishes original papers aimed at recent advances in all branches of wood science (biology, chemistry, wood physics and mechanics, mechanical and chemical processing etc.). Submission of the manuscript implies that it has not been published before and it is not under consideration for publication elsewhere.