大豆属植物根的初生结构及系统演化

Evolutional study on the root primary structure of Glycine L.

利用光学显微技术对大豆属植物根的初生结构进行了比较解剖学研究.结果表明:内皮层都具有凯氏带,幼根均具有明显的髓,初生木质部均为外始式四原型;根的直径逐渐增粗,皮层细胞层数逐渐增多.野生大豆结构较原始,栽培大豆进化.

With optical microscope study on the comparative anatomy of the root primary structure on four types of soybean (Glycine L.) shows that of all types casparian strip exits in endodermis and evident pith does in young root; primary xylem is exarch and tetrarch; diameter grows larger and the number of dermis cell layers increases in sequence; the Glycine soja is originally,G.max is a plant evolvement in Glycine L.