翅碱蓬抗逆性观察

The Observation of Resistance in Suaeda hetroptera Kitag

翅碱蓬Suaed a hetroptera Kitag.生于碱湖边、碱斑地及碱性草地,它在形态解剖结构上表现出与其生活环境相适应的抗逆性特征。它的生根中皮层细胞大,具有发达的胞间隙且不脱落;茎表皮外具发达角质层;髓部的薄壁细胞体积较大,贮藏能力强,叶表面光滑,无表皮毛,但表皮细胞外切向壁呈乳突状突起,表皮外切向壁角质层特化成角质层嵴。叶肉为大型贮水细胞;叶脉维管束不发达。叶表面积与体积之比小于中生植物。翅碱蓬的这些结构是与其所生存的干旱、高盐碱环境相适应的。

Suaed a hetroptera kitag. was growing in alkalization land. The observation results showed that there are a lot of cuticle on the stem's epidermis pith parenchyma are large. All of the mesophyll are the aqueous tissue, leaf's epidermis cuticle are development. The mechanical tissues asides leaf's vassular bundle sheath of veins volume are smaller than typical case.