华南理工大学学报(自然科学版) ›› 2006, Vol. 34 ›› Issue (12): 59-62.

• 生物工程 • 上一篇    下一篇

木素在黄柳纤维细胞壁中的分布

许凤1 钟新春1 卢琦2 孙润仓3   

  1. 1. 齐齐哈尔大学 轻工纺织学院, 黑龙江 齐齐哈尔 161006; 2. 中国林业科学院 中国防治荒漠化研发中心, 北京 100091;3. 华南理工大学 制浆造纸工程国家重点实验室, 广东 广州 510640
  • 收稿日期:2005-04-29 出版日期:2006-12-25 发布日期:2006-12-25
  • 通信作者: 许凤(1970-), 女, 博士, 副教授, 主要从事植物资源化学研究. E-mail:xfx315@163. com
  • 作者简介:许凤(1970-), 女, 博士, 副教授, 主要从事植物资源化学研究.
  • 基金资助:

    黑龙江省青年学术骨干支持计划项目( 1151G061);华南理工大学制浆造纸国家重点实验室开放基金项目( 200533)

Distribution of Lignin in Cell Wall of Salix gordejecii Fiber

Xu Feng1  Zhong Xin-chun1  Lu qi2  Sun Run-cang3   

  1. 1.College of Light and Textile Industry,Qiqihar Univ.,Qiqihar 161006,Heilongiiang,China;2.China National R&D Center for Combating Desertification,China Academy of Forestry,Beijing 100091,China;3.State Key Laboratory of Pulp and Paper Engineering,South China Univ.of Tech.,Guangzhou 510640,Guangdong,China
  • Received:2005-04-29 Online:2006-12-25 Published:2006-12-25
  • Contact: 许凤(1970-), 女, 博士, 副教授, 主要从事植物资源化学研究. E-mail:xfx315@163. com
  • About author:许凤(1970-), 女, 博士, 副教授, 主要从事植物资源化学研究.
  • Supported by:

    黑龙江省青年学术骨干支持计划项目( 1151G061);华南理工大学制浆造纸国家重点实验室开放基金项目( 200533)

摘要: 探讨了木素在黄柳(Salix gordejecii)纤维细胞壁中的分布情况及其与制浆造纸的关系. 采用透射电子显微镜( TEM )、扫描电子显微镜结合X 射线能谱仪( SEM-EDXA )及共聚焦激光扫描显微镜( CLSM) 研究了黄柳纤维细胞壁的分层结构, 以及木素在细胞壁各层中的分布. TEM 结果表明, 黄柳纤维细胞壁分为胞间层、初生壁、次生壁外层、次生壁中层及次生壁内层. CLSM图像显示木素在纤维细胞各个壁层中分布不均一, 细胞角隅区木素含量最高、其次是胞间层, 次生壁最低. 导管中的木素浓度比纤维细胞中的高. SEM-EDXA研究表明细胞角隅区、胞间层、次生壁中层的木素浓度比为2. 15:1. 32:1.

关键词: 黄柳, 木素, 纤维, 细胞壁, 木素分布

Abstract:

The distribution of lignin in the cell wall of Salix gordejecii fiber and its efect on pulping and papermaking were studied.The ultrastmcture of the cell wall of lix gordejecii fiber and the distribution of lignin in the cell wall were then determined using TEM .scanning electron microscopy combined with energy dispersive X-ray analysis(SEM.EDXA)and confocal laser scanning microscopy(CLSM.The TEM images show that the cell wall of Salix gordejecii fiber is typically divided into three layers,namely the middle lamellar,the primary wall and the secondary wall that includes the outer.the middle and the inner layers,The CLSM images reveal that the distribution of lignin in the cell wall layers is not uniforill.folowing a decreasing o er of the cell comer,the middle lam ellar and the secondary wall.and that the lignin concentration in the vessel is larger than that in the fiber cell.Moreover.the SEM.EDXA results indicate that the lignin concentration in the cell comer,the middle lam elar and the middle layer ofthe secondary wall is in a ratio of 2.15:1.32:1.

Key words: Salix gordejecii, lignin, fiber, cell wall, lignin distribution