期刊论文

中文

广西植物

1000-3142

2018

38

7

843-850

10.11931/guihaia.gxzw201707020

国家林业局部门预算广西项目支出预算项目

本校为第一机构

该研究采用石蜡切片和光学显微技术,对海南风吹楠营养器官的解剖结构及其对环境的适应性进行了探讨。结果表明:海南风吹楠为典型异面叶,叶片中脉发达,中部分化出髓,上表皮外侧具角质层,内侧具1层内皮层,下表皮外侧无角质层,有气孔器分布,气孔器为双环型,略下陷;栅栏组织3~4层细胞,海绵组织4~6层细胞。茎的初生结构中表皮轻微角质化,维管束为外韧型,8~10个初生维管束围绕髓排列为1轮;茎的次生结构中,表皮外部角质层加厚,维管柱紧密排列连成环状,次生韧皮部和次生木质部发达,形成层细胞3~5层。根的初生结构中表皮细胞外壁加厚,外皮层细胞体积大,形状不规则,内侧具1层形成层,内皮层具凯氏带,初生木...

The anatomy structures of vegetative organs of Horsfieldia hainanensis were studied by paraffin-sectioning and optical microtechnique to explore its adaptability to environment. The results showed that the leaves of H. hainanensis belonged to typical bifacial leaf, leaf blade-midribs was well-developed and the middle part had differentiated into pith. There was cuticle on the outside of upper epidermis of leaf and one layer endodermis inside. There was no cuticle on the outside of lower epidermis, and the sunken stomata were bicyclical type distributed. There were 3-4 layer cells in palisade t...