摘要
运用生物显微镜对紫穗槐1 a生枝条的木质部离析材料进行了观察。结果表明:紫穗槐具有环纹导管、螺纹导管、梯纹导管、网纹导管和孔纹导管5种类型的导管,穿孔板类型为单穿孔,导管的长度、宽度、穿孔板倾斜度及端壁形态具有丰富的多样性,这些特征丰富了对紫穗槐生理机能、生态适应和系统发育进行合理解释的理论依据。
To clarify the characteristics of vessel elements in Arnorpha fruticosa. The vessel elements in stem are observed by educts of stem＇s secondary xylem under bio-microseope. The results showed that there were 5 types of vessel elements, the spiral vessel, ringed vessel, reticulated vessel, scalariform vessel and pitted vessel, the perforation plates was simple perforation plate. The length,aperture,batter of perforation plates and the pattern of wall top show rich variety. Amorpha fruticosa was a original species in evolution of vessel element, the characteristics of vessel elements are beneficial to explain the ability of adaptation and the development.
出处
《北方园艺》
CAS
北大核心
2010年第8期160-162,共3页
Northern Horticulture
基金
河南科技大学博士科研启动资金资助项目(09001219)
关键词
紫穗槐
导管类型
形态特征
Amorpha fruticosa
vessel type
characteristics of vessel elements
