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荔枝、龙眼叶片表皮结构的研究
引用本文:王心燕,何惠玲,肖德兴. 荔枝、龙眼叶片表皮结构的研究[J]. 园艺学报, 2006, 33(4): 825-828
作者姓名:王心燕  何惠玲  肖德兴
作者单位:(仲恺农业技术学院园艺系, 广东广州 510225)
基金项目:广东省教育厅自然科学基金项目(0153)
摘    要: 用扫描电镜观察了荔枝、龙眼各3个品种的叶表皮。结果表明, 龙眼叶片上表皮角质层平均厚度2.36μm , 显著大于荔枝(1.93μm) 。荔枝、龙眼叶片下表皮具有大量的乳状突; 乳状突的密度, 荔枝为7 855.1个/mm2 , 龙眼为7 708.8个/mm2 ; 荔枝的乳状突呈近半圆形, 宽9.55μm, 高5.71μm; 龙眼的乳状突为长形, 宽5.94μm, 高10.38μm; 荔枝、龙眼气孔长×宽分别为6.98μm ×3.09μm、7.14μm×2.30μm。荔枝、龙眼表皮结构特征差异明显。

关 键 词:荔枝  龙眼  表皮  气孔  电镜
文章编号:0513-353X(2006)04-0825-04
收稿时间:2005-09-19
修稿时间:2005-09-192006-01-25

Studies on the Leaf Epidermal Structure of Litchi chinensis and Dimocarpus longan
Wang Xinyan,He Huiling,Xiao Dexing. Studies on the Leaf Epidermal Structure of Litchi chinensis and Dimocarpus longan[J]. Acta Horticulturae Sinica, 2006, 33(4): 825-828
Authors:Wang Xinyan  He Huiling  Xiao Dexing
Affiliation:(Department of Horticulture, Zhongkai Agrotechnical College, Guangzhou, Guangdong 510225, China)
Abstract:The structure of leaf ep idermis was studied with scanning electronic microscope ( SEM) in 3 cultivars of litchi and longan respectively. The results showed that the cuticle thickness in upper epidermis was 1.93 μm in litchi and 2.36μm in longan. Numerous protuberances could be observed on the lower epidermis, the densities of p rotuberance were 7 855.1 /mm2 in litchi and 7 708.8 /mm2 in longan. The litchips protuberances were dome-shaped with 9.55μm in width and 5.71μm in height. The longanps protuberances werelong, 5.94 μm in width and 10.38 μm in height. The stomata appeared only on lower epidermis, the size of stomata in litchiwas 6.98μm ×3.09μm while 7.14μm ×2.30μm in longan. The characteristic difference of the ep idermis construction was obvious between litchi and longan.
Keywords:Litchi chinensis  Dimocarpus longan  Epidermis  Stomata  SEM
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