安徽农业科学2019，Vol.47Issue(2)：1-3,3.DOI:10.3969/j.issn.0517-6611.2019.02.001
桃金娘叶片的解剖结构及其生态适应性研究
Study on the Anatomical Structure of Rhodomyrtus tomentosa Leaf Blade and Its Ecological Adaptability
摘要
Abstract
[Objective]This study aimed to reveal the relevance between the anatomical structure of Rhodomyrtus tomentosa leaf blade and its ecological significance, which might provide anatomical data for the protection, introduction, development and utilization of myrtle resources.[Method]The paraffin-sectioning followed by light microscopy as well as sodium hydroxide (NaOH) segregation was employed to investigate the anatomical structure of R.tomentosa leaf blade.[Result]The leaves of R.tomentosa belonged to dorsiventral leaf, with thicken epidermal keratinocytes.The lower epidermis had dense epidermal hairs, while there were many secretory cavities in the mesophyll tissues.In the veins, the vascular and mechanical tissues were highly developed, and tannin was detected to be widely-distributed in the epidermis, mesophyll tissues and vein elementary tissues.[Conclusion]These data suggest that R.tomentosa can be defined as a'xerophytic mesophyte', whose leaves have strong drought resistance, disease resistance and insect resistance.关键词
桃金娘/叶片/解剖结构/生态适应Key words
Rhodomyrtus tomentosa/Leaves/Anatomical structure/Ecological adaptation分类
农业科技引用本文复制引用
叶昌辉,陈丹,郑晓婷,陈恒恒,陈廷慧,吴钿..桃金娘叶片的解剖结构及其生态适应性研究[J].安徽农业科学,2019,47(2):1-3,3.基金项目
广东省科技厅项目(2013B020304003) （2013B020304003）
广东海洋大学大学生创新实验(CXXL2014072) （CXXL2014072）
国家级大学生校外实践教学基地(GDOU2013040301) （GDOU2013040301）
广东省教育厅卓越人才培养计划(GDOU2014041208,GDOU2013040402) （GDOU2014041208,GDOU2013040402）
