不同成熟度龙眼叶片组织显微结构的观察

Comparative Observations on Microstructure of Longan Leaves with Different Ages

采用石蜡切片法对龙眼不同成熟度叶片的显微结构进行了比较研究。结果表明嫩叶、成熟叶和老熟叶在上下表皮厚度、角质层、乳突状突起及栅栏组织、海绵组织和维管束的显微结构上存在明显差别。本文也讨论了不同成熟度叶片与光合作用和逆抗性的关系。

This paper studied the microstructure ot longan leaves with different ages by paraffin section method. There were evident differences in thickness of epidermis and tissue structures of cuticle, papilla, palisade tissue, spongy tissue and vascular cylinder among tender leaves, mature leaves and aged leaves. The relationship of leaves ages to photosynthesis and hardiness was discussed.