摘要
采用石蜡切片法对青岛海滨地区的肾叶打碗花(Calystegia soldanella)营养器官解剖学特征进行了观察研究,结果显示:肾叶打碗花为典型的泌盐植物;叶片上下表皮分布有由多细胞组成的盐腺;叶表皮细胞排列紧密,表皮外被有角质层;上下表皮都有气孔,气孔与表皮细胞基本齐平;为异面叶,有发达的栅栏组织。茎表皮上分布有气孔,与表皮细胞齐平;表皮与皮层之间有数层体积较小的厚壁细胞;薄壁细胞内有分泌腔分布;根表皮细胞向外突出形成大量根毛等。研究结果表明,肾叶打碗花的解剖结构表现出与其生境相适应的特征。
The anatomical structure of nutritive organs of Calystegia soldanella growing in the seacoast area of Qingdao city was studied by using paraffin section method. The observed results are as follows： it belongs to typical salt - secreting plant; there are lots of salt glands that consist of multi - cells and distribute in upper and lower epidermis of leaves; the epidermal cells of leaf arrange compactly and cuticle covers the epidermis; there are stomata in upper and lower epidermis and the stomata are as the same level as epidermis cells; its leaves are bifacial and have advanced palisade tissue. There are a lot of stomata that distribute in epidermis of stems. There are several layers of prothenchyma between epidermis and cortical layer. The epidermal cells of stems stand out to form lots of fibrils. Its anatomical structure shows adaptation to the salinity environments.
出处
《江西农业学报》
CAS
2009年第3期64-67,共4页
Acta Agriculturae Jiangxi
关键词
肾叶打碗花
耐盐
营养器官
解剖结构
Calystegia soldanella
Salt tolerance
Nutritive organs
Anatomical structure
