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当前位置: 首页 > 文章 > 3种香根草属植物叶表皮微形态特征研究 草业学报 2013,22 (1) 282-287
Position: Home > Articles > Research on micromorphology of leaf epidermis of three species of Vetiveria zizanioides Acta Prataculturae Sinica 2013,22 (1) 282-287

3种香根草属植物叶表皮微形态特征研究

作  者：
刘金祥;张莹;黎婷婷
单  位：
广东高校边缘热带特色植物工程技术开发中心;湛江师范学院热带草业科学研究所;甘肃农业大学草业学院草业生态系统教育部重点实验室中-美草地畜牧业可持续发展研究中心
关键词：
香根草;叶表皮;微形态特征;抗逆性
摘  要：
运用光学显微镜和扫描电镜的方法,对3种香根草属植物的叶表皮微形态特征进行观察和比较。结果表明,香根草属3个种的叶表皮皆由长细胞、短细胞、气孔器、微毛、刺毛、大毛和乳突所组成。长细胞为长方形,垂周壁呈深波状或浅波状,短细胞有哑铃形、十字形,结节形;气孔器均为纵列型,副卫细胞为圆屋顶形至三角形;上下表皮都具微毛和乳突,下表皮还具刺毛和大毛;叶片表面有一层厚厚的角质膜,并常有条状隆起。该研究说明香根草属植物叶表皮微形态既有种间相似的特征,又存在一定的特异性,可为本属种间的分类及其抗逆机理提供依据。
译  名：
Research on micromorphology of leaf epidermis of three species of Vetiveria zizanioides
作  者：
LIU Jin-xiang1,3,ZHANG Ying1,2,3,LI Ting-ting1(1.Institute of Tropical Pratacultural Science,Zhanjiang Normal College,Zhanjiang 524048,China; 2.College of Pratacultural Science,Gansu Agricultural University;Key Laboratory of Grassland Ecosystem,Ministry of Education;Sino-U.S.Center for Grazing Land Ecosystem Sustainability,Lanzhou 730070,China;3.University Engineering Development Center of Fringe Tropical Features Plant in Guangdong, Zhanjiang 524048,China)
关键词：
Vetiveria zizanioides;leaf epidermis;micromorphology;stress resistance
摘  要：
The leaf epidermal characters of 3 species of Vetiveria zizanioides were observed and compared under light and scanning electron microscopes.The results showed that leaf epidermis consisted of long cells,short cells,stomas,micro-hairs,prickle-hairs,macro-hairs and mastoid process.The long cells were rectangle,with shallow or deep wavy anticlinal walls.The short cells has dumbbell,cruciform and nodular types.The stomata were tandem and triangular or dome shaped subsidiary cells.The leaves distributed ad-and abxially epidermis of micro-hairs and mastoid process.The lower epidermis also have prickle-hairs and macro-hairs.The leaf epidermal were covered with thick cutin and strip upheaval.The study could clarify that the same characteristic of microstructure of cotyledon epidermis of V.zizanioides,and the difference in species,so it could provide morphological evidence for stress resistance and taxonomy.

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