| 引用本文： |
-
陈健辉,缪绅裕,张志坤,杜翠华,罗韵,陈倩韵.无瓣海桑叶结构的研究[J].广西科学,2011,18(2):169-176. [点击复制]
- CHEN Jian-hui,MIAO Shen-yu,ZHANG Zhi-kun,DU Cui-hua,LUO Yun,CHEN Qian-yun.Study on the Leaf Structure of Sonneratia apetala[J].Guangxi Sciences,2011,18(2):169-176. [点击复制]
|
|
| |
|
|
| 本文已被：浏览 543次 下载 582次 |
码上扫一扫！ |
| 无瓣海桑叶结构的研究 |
|
陈健辉1,2, 缪绅裕1,2, 张志坤1, 杜翠华1, 罗韵1, 陈倩韵1
|
|
|
| (1.广州大学生命科学学院, 广东广州 510006;2.广州大学生命科学学院, 华南生物多样性保护与利用实验室, 广东广州 510006) |
|
| 摘要: |
| 利用石蜡切片法对无瓣海桑叶进行解剖研究。结果表明,无瓣海桑(Sonneratia apetala)的叶为等面叶,气孔类型为4(-5)细胞轮列型;叶中脉维管束为周韧维管束,有微弱形成层,并具内生韧皮部;叶具四级侧脉,第一级侧脉为半周韧维管束,第二级、第三级、第四级侧脉为外韧维管束;盐腺先由叶的表皮细胞发育成原基,再进一步发育,其发育过程可分为表皮细胞分化期、分泌细胞形成期以及盐腺成熟期3个阶段,最终发育形成具腔室、分泌细胞和收集细胞的盐腺,盐腺分布广泛,具有明显的生态适应性。 |
| 关键词: 无瓣海桑 叶 结构 叶脉 盐腺 |
| DOI： |
| 投稿时间：2010-11-10修订日期：2011-02-15 |
| 基金项目:广州市属高校科技计划项目(08C032);国家教育部留学回国人员科研启动基金项目(2007-1108)资助 |
|
| Study on the Leaf Structure of Sonneratia apetala |
|
CHEN Jian-hui1,2, MIAO Shen-yu1,2, ZHANG Zhi-kun1, DU Cui-hua1, LUO Yun1, CHEN Qian-yun1
|
| (1.College of Life Sciences, Guangzhou University, Guangzhou, Guangdong, 510006, China;2.Laboratory for Conserving and Utilizing Biodiversity of South China, College of Life Sciences, Guangzhou University, Guangzhou, Guangdong, 510006, China) |
| Abstract: |
| The leaf of Sonneratia apetala was anatomized by paraffin method to observe its structures.The results showed that the leaf of S.apetala is isobilateral leaf, belonging to 4 (-5) cells verticillate type stomata.The vascular bundle of the midrib is amphicribral bundle with faint cambium and intraxylary phloem.The leaf has four veins, of which primary vein vascular bundle is semi-amphicribral bundle, and secondary, tertiary and quaternary vein vascular bundles are collateral bundle.The salt gland is developed from epidermis cells of leaf, experiencing 3 periods of epidermis cells differentiation, secreting cells for mation and salt gland maturation.Ultimately the salt gland consists of cavity, secreting cells and collecting cells, which widely distributes and has obviously ecological adaptability. |
| Key words: Sonneratia apetala leaf structure vein salt gland |
|
|
|
|
|
