文献类型：期刊文献

中文题名：6个灰楸无性系叶片表皮微形态特征比较

英文题名：Comparison of the micro-configuration of the leaf surface of 6 clones of Catalpa fargesii

作者：肖遥[1] 麻文俊[1] 杨桂娟[1] 易飞[1] 王智[1] 王楠[1] 景丹龙[1] 王军辉[1]

第一作者：肖遥

机构：[1]中国林业科学研究院林业研究所林木遗传育种国家重点实验室国家林业局林木培育重点实验室国家林木种质资源平台

年份：2017

卷号：36

期号：4

起止页码：414-421

中文期刊名：电子显微学报

外文期刊名：Journal of Chinese Electron Microscopy Society

收录：CSTPCD;;CSCD:【CSCD_E2017_2018】；

基金：林业公益性行业科研专项经费"胡杨和楸树全基因组关联遗传分析资助项目(No.201404101)"

语种：中文

中文关键词：灰楸;无性系;叶表皮;微形态;抗性

外文关键词：Catalpa fargesii ; clone; leaf epidermis; micro morphology; resistance

分类号：S792.25;S792.99

摘要：为加快灰楸高抗品种选育进程,优化灰楸引种栽培管理方案。本研究采用扫描电镜技术对灰楸6个无性系叶片表皮微形态进行了观察。结果表明:灰楸无性系间表皮蜡质纹饰特征、蜡质纹饰分布量、气孔器类型、气孔器尺寸等微形态特征均有较大差异。07027、07028和07069无性系气孔器长度和宽度均较大,07027和07069无性系蜡质纹饰呈细条状,且分布量明显小于其他系号。07032和07040无性系气孔尺寸和开度较为适中,蜡质纹饰呈皱褶粗条状,大量密集于气孔器周围。此外,07032和07040无性系具有明显的气孔下陷特征。07029无性系气孔尺寸显著最小,蜡质纹饰分布较多,但非腺毛分布较为稀疏。根据与抗性相关的叶片解剖形态特征综合评价了灰楸无性系抗逆性,发现07032和07040无性系叶片微形态表现出优良的抗旱或抗寒能力,初步认为07032和07040无性系为灰楸优良高抗无性系。
In order to speed up the high resistant variety breeding process and optimize cultivation management of Catalpa fargesii, the leaf surface micro-configurations of 6 clones were observed by scanning electron microscope. Result showed that the waxiness characteristic, waxiness amount, type of stoma, size of stoma of 6 clones were significantly different. The length and width of 07027, 07028,07069 clones were lager, and the waxiness characteristic of 07027 and 07069 were presented as thin strip, and their waxiness amount were obvious lesser than other clones. The opening degree of stoma of 07032 and 07040 were medium, while their waxiness were thick strip and around the stoma. And specifically, the stoma of 07032 and 07040 were obviously sunken. The size of 07029 stoma was minimum and the amount of its nonglandular hair was lower though it had more waxiness. The resistance of the clones of Catalpa fargesii were estimated according to the morphological feature of the leaves. It is found that the resistance of 07032 and 07040 are more remarkable.