黄藤材导管壁木质素分布可见光谱分析  

Visible Spectrum of Lignin Distribution in Vessel Wall of Daemonorops margaritae

作　　者：王瑞[1] 汪佑宏[1] 刘杏娥[2] 江泽慧[2] 费本华[2] 任海青[3] 

机构地区：[1]安徽农业大学,合肥230036 [2]国际竹藤网络中心 [3]中国林业科学研究院

出　　处：《东北林业大学学报》2011年第8期50-51,67,共3页Journal of Northeast Forestry University

基　　金："十一五"国家科技支撑计划项目(2006BAD19B0401);安徽省自然科学基金项目(11040606M60)

摘　　要：以我国特有的黄藤为研究对象,对不同生长时期导管壁木质素分布及质量分数、细胞壁微区上木质素分布规律等进行研究,探寻木质化程度与其性质间关系,提高我国棕榈藤资源高附加值加工利用水平。结果表明:轴向向下,导管细胞壁中S基木质素质量分数先增后减,而S基和G基木质素总量整体呈下降变化趋势。径向由外向内,导管壁中S基木质素质量分数在梢部、中部先降后升,在2 m处和基部分别呈先升后降和不断减小趋势。导管壁中S基和G木质素总量在藤茎梢部、2 m处和基部先减后增,而在中部却不断增大。在基部由导管外壁向内S基木质素质量分数呈"增—减—增"的S型趋势,而S基和G基木质素总量先减后增,且最小值均在靠近导管壁内侧。An experiment was conducted to study the lignin distribution and content in the vessel wall and the lignin distribution on the micro-morphological regions of the vessel wall of Daemonorops margaritae during different development stages, in order to find the relationships between the lignification and the properties, and improve the levels of high value-added process and utilization of Chinese rattan resources. Results showed that, with height decreasing in axial, the conteat of S-lignin first increased and then decreased, and the total content of S-lignin and G-lignin decreased ; in radial from outer to inner of the cane, the content of S-lignin in vessel wall first decreased and then increased at the top and the middle of the cane, while it first increased and then decreased at 2 m height and decreased gradually at the bottom of the cane. The total content of S-lignin and C-lignin first decreased and then increased at the top, 2 m height and bottom of the cane, while it increased gradually at the middle of the cane. From the outside to the inner of the vessel wall, the content of S-lignin showed an S-shaped change, while the total content of S-lignin and C-lignin first decreased and then increased. The lowest values for both S-lignin and the total of S-lignin and G-lignin were nearly at the inner part of the vessel wall.

关 键 词：黄藤 可见光 导管壁 木质化 

分 类 号：Q949.714.2[生物学—植物学] Q949.4