[1]汪佑宏,余林鹏,张菲菲*,等. 基于拉曼技术的高地钩叶藤导管壁化学成分微区分布研究[J].西北林学院学报,2024,39(2):203-209.[doi:10.3969/j.issn.1001-7461.2024.02.26]
　WANG You-hong,YU Lin-peng,ZHANG Fei-fei*,et al. Microdistribution of Chemical Components in the Vessel Wall of Plectocomia himalayana Based on Raman Spectroscopy[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2024,39(2):203-209.[doi:10.3969/j.issn.1001-7461.2024.02.26]
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 基于拉曼技术的高地钩叶藤导管壁化学成分微区分布研究()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第39卷
期数:
2024年第2期
页码:
203-209
栏目:
出版日期:
2024-03-31

文章信息/Info

Title:
 Microdistribution of Chemical Components in the Vessel Wall of Plectocomia himalayana Based on Raman Spectroscopy
文章编号:
1001-7461(2024)02-0203-07
作者:
 汪佑宏1; 余林鹏1; 张菲菲2*; 杨明亮1; 江泽慧3*; 马建锋3; 田根林3
 （1.安徽农业大学 林学与园林学院，安徽 合肥 230036；2.黄山华塑新材料科技有限公司，安徽 黄山 245900；3.国际竹藤中心，北京 100102）
Author(s):
WANG You-hong1; YU Lin-peng1; ZHANG Fei-fei2*; YANG Ming-liang1; JIANG Ze-hui3*; MA Jian-feng3; TIAN Gen-lin3
 (1.School of Forestry and Landscape Architecture,Anhui Agricultural University,Hefei 230036,Anhui,China; 2.Huangshan Huasu New Material Science & Technology Co.,Ltd.,Huangshan 245900,Anhui,China; 3.International Centre for Bamboo and Rattan,Beijing 100102,China)
关键词:
 ; 高地钩叶藤; 导管; 细胞壁成分; 拉曼光谱; 化学成分; 微区分布
Keywords:
Plectocomia himalayana;  vessel;  cell wall component;  Raman spectra;  chemical composition;  microdistribution
分类号:
S781
DOI:
10.3969/j.issn.1001-7461.2024.02.26
文献标志码:
A
摘要:
 为探寻棕榈藤材具有优良韧性的机理和棕榈藤材高值化利用，选择高地钩叶藤为研究对象，利用显微共聚焦拉曼技术，对导管壁化学成分的微区分布进行测试分析。结果表明，高地钩叶藤导管壁纤维素分子浓度为次生壁＞复合胞间层＞细胞角隅，而木质素分子浓度分布恰好相反。次生壁内、外层纤维素、木质素及半纤维素分子浓度差异较小。在藤茎径向上，藤芯处导管次生壁中层和细胞角隅处木质素的分子浓度最高，藤皮处导管的半纤维素分子浓度最高。藤皮处导管次生壁中层纤维素的分子浓度最低而细胞角隅处却最高，而藤中与藤芯处导管细胞角隅中半纤维的分子浓度均很小。在藤茎轴向上，随着高度增加藤皮导管次生壁中层木质素和半纤维素分子浓度变化趋势相同，而纤维素分子浓度在藤皮与藤芯间变化趋势完全相反。除导管各壁层的三大素分布呈一定规律性外，在藤茎径向和轴向上规律不明显。
Abstract:
 The objective of this study was to explore the mechanism of the excellent toughness and the high-value utilization of the rattans.Plectocomia himalayana was chosen as the research object.The microdistribution of chemical components in vessel wall was measured and analyzed by using confocal micro-Raman spectroscopy.The results showed that the molecular concentration of cellulose in the vessel wall was in the order of secondary wall>composite intercellular layer>cell corner,and the molecular concentration order of lignin was just the opposite.There was little difference in the molecular concentrations of cellulose,lignin or hemicellulose between the inner and outer layers of the secondary wall.In the radial direction of rattan stem,while the molecular concentrations of lignin in the middle layer of secondary wall of vessel and cell corner at the core were the highest,and the molecular concentration of hemicellulose in the vessel at the cortex was also the highest.The cellulose molecular concentration in middle layer of the secondary wall of vessel in the cortex was the lowest,while it was the highest in cell corner.The molecular concentration of hemicellulose in the cell corner in the middle layer (i.e.the layer between core and cortex) and core was very low.In the axial direction of rattan stem,with the increase of height,the variation trend of lignin and hemicellulose molecular concentration in the middle layer of the secondary wall in cortex was the same,however,the variation trend of cellulose molecular concentration between cortex and core was completely opposite.It is concluded that the distributions of cellulose,hemicellulose,and lignin in each wall layer of vessel show a certain regularity,no regularity is found in the radial and axial directions of the rattan stem.

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备注/Memo

备注/Memo:
 收稿日期：2023-03-29修回日期：2023-04-04
基金项目：“十四五”国家重点研发计划课题（2022YFD2200901）；国家自然科学基金项目（31800476）。
第一作者：汪佑宏，教授，博士（后）。研究方向：生物质材料构造、材性及改性。E-mail：wangyh@ahau.edu.cn
*通信作者：张菲菲，工程师，硕士。研究方向：生物质材料基础理论及材性。E-mail:2434179162@qq.com
江泽慧，教授。研究方向：木材科学与技术。E-mail:jiangzehui@icbr.ac.cn
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