以我国特有的黄藤为研究对象,运用可见光显微分光光度计,对不同生长时期黄藤材薄壁细胞及细胞壁微区木质素含量和分布进行研究。结果表明:随着黄藤材藤龄的增大,薄壁细胞次生壁中紫丁香基木质素含量不断增大,紫丁香基木质素和愈疮木基木质素总量呈“降—升—降”的变化趋势。薄壁细胞角隅处木质素含量高于次生壁,薄壁细胞壁各微区木质素含量均为胞间层较高,初生壁次之,次生壁最少。
Abstract
In order to find the relationships between the lignification and the properties, and to improve the levels of high value added processing and utilizing for Chinese rattan resources, the Daemonorops margaritae, a unique rattan in China, is chosen as the research material to study the lignin distribution and content of the parenchyma and the micromorphological regions of parenchyma wall during the different growing development by the visible light microscope spectrophotometer. The results showed that with the age increasing, the content of Slignin in parenchyma secondary cell increased continuously, and the total content of Slignin and Glignin showed “decreasing—increasing—decreasing”. At the same time, the lignin content in parenchyma corner was higher than the parenchyma secondary wall. The contents of different kinds lignin in the micromorphological regions of parenchyma wall were the secondary wall <primary wall <intercellular layer.
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基金
收稿日期:2011-11-14修回日期:2012-06-27
基金项目:“十二五”国家科技支撑计划(2012BAD23B0104);安徽省自然科学基金项目(11040606M60)
第一作者:汪佑宏,副教授,博士。 *通信作者:刘杏娥,副研究员。 Email:liuxe@icbr.ac.cn。
引文格式:汪佑宏,刘杏娥,江泽慧,等. 黄藤材薄壁细胞木质素分布的可见光谱分析[J]. 南京林业大学学报:自然科学版,2012,36(6):140-142.