彩色棉纤维的超微结构观察  

Observation of ultrastructure of colored cotton fiber

作　　者：李悦有[1] 王学德[1] 

机构地区：[1]浙江大学农学系,浙江杭州310029

出　　处：《浙江大学学报（农业与生命科学版）》2002年第4期379-382,共4页Journal of Zhejiang University:Agriculture and Life Sciences

基　　金：国家高技术研究发展计划 ("86 3"计划 ;2 0 0 1AA2 12 0 81) ;国家转基因植物研究与产业化开发专项 (J0 0 - B- 0 0 2 - 10 ) ;国家自然科学基金 (30 170 0 5 8)和国家教育部科研基金 (重大 0 114 )资助项目 .

摘　　要：对白色棉、棕色棉和绿色棉纤维进行了电镜观察 ,结果表明 :3种颜色纤维的结构由外到内依次为初生壁、次生壁和中腔 .在白色纤维的超微结构中未发现染色较深的物质 ;在绿色棉纤维中 ,纤维的次生壁内层存在大量染色深的条纹 ,这些条纹可能是色素沉积的结果 ,类似沉积的日轮 ;在棕色棉纤维的中腔内 ,存在大量染色深的物质 ,而且这些物质主要沉积在中腔壁上 ,这些染色较深的物质可能是棕色棉纤维的色素物质 ,同时发现棕色棉纤维具有分叉结构 .与白色纤维比较 ,彩色纤维表现出的品质较差 ,可能与纤维素含量低及色素物质的沉积有关 .Electron microscopic examination of white, brown and green fiber revealed that each of these three types of fiber cells was composed of primary wall, secondary wall and lumen from outside to inside The white fiber cell hadn't been found any deep dyed matter in wall and lumen The green fiber cell had numerous concentric osmiophilic rings around the lumen, whereas white and brown fibers had no these rings It was supposed that these rings be formed day by day during green pigment deposition The brown fiber cell not only had a large lumen deposited by plenty of deep dyed substance, but also had a fork structure which grew up to a branch from the main lumen of fiber cell After measured the quality of colored fiber, it was very unluckily that the colored fibers had comparatively poorer quality than the whiter fiber, which might be related to lower cellulose content and pigment matter accumulation in colored fibers

关 键 词：彩色棉纤维 超微结构 电镜观察 品质 

分 类 号：S562[农业科学—作物学] TS102.211[轻工技术与工程—纺织工程]