摘要
本文对绿玉树经不同诱变途径获得的材料进行了抗寒性研究,通过观察其形态结构、叶绿体、线粒体等超微结构及测定膜的透性变化,了解绿玉树形态结构、细胞结构与抗寒性之间的关系。结果表明:低温处理会使植物在形态及细胞结构上发生相应的变化;经60Co-γ辐射或EMS诱变处理后用HYP筛选出的突变体和经秋水仙碱处理获得的多倍体的抗寒性较强。这对抗寒性育种有一定参考价值。
Cold- resistance of materials mutated by different ways was studied comparatively. Based on observing the morphological structure, determining membrane permeability, observing the ultra- structure of chlorophyll and mitochondrion, the relations between the cold- resistance and cell structure, morphological structure base were discussed. The results showed that low temperature treatment led to change in morphological and cellar structure. HYP- resistant mutant shoots selected with HYP after treaded with chemical mutagen EMS or exposed to ^60Co-γ rays and multi- shoots gained by chemical colchicine doubling had higher capacity of cold resistance than the normal shoots. Above mentioned studies provide the theory and techniques for cold resistance breeding.
出处
《中国麻业》
2005年第6期294-299,共6页
Plant Fibers and Products
关键词
绿玉树
细胞结构
抗寒性
Euphorbia tirucalli
cell- structure
cold- resistance
