| 鸡蛋花(夹竹桃科)花表皮气孔的初步研究 |
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| 引用本文： | 王永飞,何华柱. 鸡蛋花(夹竹桃科)花表皮气孔的初步研究[J]. 广西植物, 2010, 30(1): 60-63 |
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| 作者姓名： | 王永飞 何华柱 |
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| 作者单位： | 暨南大学,生物工程学系,广州,510632 |
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| 基金项目： | 国务院侨务办公室新世纪华侨高等教育教学改革工程项目(JYQ0625)~~ |
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| 摘 要： | 对鸡蛋花花表皮的气孔进行初步研究,结果发现:花冠裂片的上表皮没有气孔的分布;花冠裂片的下表皮则有气孔的分布。当花冠裂片长度1.5cm时,气孔密度最大,且极显著地高于花冠裂片长度为2.0、2.5、3.5cm和4.0cm时的气孔密度。长度为3.0cm的花冠裂片的气孔指数最大,与花冠裂片长度为1.0、2.0、3.5cm和4.0cm时的气孔指数的差异均达极显著水平。在花冠筒长度为0.3cm和0.4cm时,没发现气孔;当花冠筒生长到0.5cm时开始出现气孔。花冠筒长度为0.6cm时,气孔密度最大,且极显著地高于其它长度花冠筒的气孔密度。花冠筒长为0.6、1.1cm和1.3cm时的气孔指数均极显著地大于长度为0.5cm花冠筒的气孔指数。花冠裂片和花冠筒下表皮的普通表皮细胞都呈不规则的多边形,保卫细胞呈半月形。
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| 关 键 词： | 鸡蛋花 花 花冠 气孔密度 气孔指数 |
Stomatal distribution on the flower of Plumeria rubra |
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| WANG Yong-Fei,HE Hua-Zhu. Stomatal distribution on the flower of Plumeria rubra[J]. Guihaia, 2010, 30(1): 60-63 |
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| Authors: | WANG Yong-Fei HE Hua-Zhu |
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| Affiliation: | Department of Bioengineering;Jinan University;Guangzhou 510632;China |
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| Abstract: | Stomatal distribution on the flower of Plumeria rubra was observed. There were stomata on the abaxial surface of corolla sliver,and no stomata on the adaxial surface. The stomatal density was the highest on the abaxial surfaces of corolla sliver which were 1.5 cm long. Furthermore,the differences in stomatal density between 1.5 cm and 2.0 cm,1.5 cm and 2.5 cm,1.5 cm and 3.5 cm,1.5 cm and 4.0 cm corolla sliver were highly significant. The stomatal index on the abaxial surface of 3.0 cm corolla sliver was the... |
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| Keywords: | Plumeria rubra flower corolla stomatal density stomatal index |
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