论文部分内容阅读
大豆叶片的结构由上表皮、栅栏组织、维管束、海绵组织和下表皮组成。Fisher(1967)还发现位于海绵薄壁组织的最上层有一层特殊细胞——平脉叶肉细胞(Paraveinal mesophyll cell),并对其进行了形态和解剖的观察。 Westoa等(1973)观察了平脉叶肉细胞的发育过程,认为它是从近轴原表皮层下基本分生组织第三层分化而来,这一层细胞在发育过程中形成大的液胞和明显的细胞间隙。我们近年来用石蜡制片和光学显微镜也观察到栽培品种和野生大豆(包括在温室栽培的)的长成叶片都有平脉叶肉细胞。在横切片所观察到的平脉叶肉细胞位于栅栏组织
Soybean leaf structure by the epidermis, palisade tissue, vascular bundles, sponge tissue and the lower epidermis. Fisher (1967) also found a special layer of cells located on the uppermost layer of sponge parenchyma, Paraveinal mesophyll cells, which were observed morphologically and anatomically. Westoa et al. (1973) observed the development of equatorial mesenteric cells and considered it to differentiate from the third layer of basic meristem below the paraxial protocortical layer. This layer of cells formed large liquid cells during development Clear cell gap. We have also observed in recent years that paraquat leaf cells are present in long leaves of cultivars and wild soybeans, including those cultivated in the greenhouse, using paraffin and optical microscopy. The observed mesophyll cells in the transverse section are located in the palisade tissue