摘要
将来源于‘徐薯18’叶片的胚性愈伤组织,接种在含有不同2,4D浓度的液体MS培养基中进行悬浮培养,悬浮细胞表现出不同的形态结构、分裂方式和发育途径:2,4D浓度为1mg/L时,细胞均等分裂,增殖迅速;不含2,4D时,细胞多进行不均等分裂,并发育成体细胞胚。不同2,4D浓度中培养的悬浮细胞,其胞外过氧化物同工酶谱及其随时间变化的方式有很大差异,并与细胞的生长。
Divergences were discovered in cell morphology, mode of cell division and passage of cell differentiation, when embryogenic calli induced from leaves of `Xushu 18' sweet potato were suspension_cultured in modified MS medium with different concentrations of 2,4 D. Cells grew quickly and divided equally in medium containing 1 mg/L 2,4 D. When 2,4 D was deleted, the cells divided unequally and developed into embryos. Extracellular peroxidase isozyme patterns changed greatly during suspension culture with different concentrations of 2,4 D and were closely related to cell development process.
出处
《植物学通报》
CSCD
1999年第4期411-415,共5页
Chinese Bulletin of Botany
关键词
甘薯
体胚发生
悬浮培养
过氧化物同工酶
Sweet potato, Somatic embryogenesis, Suspension culture, Peroxidase isozyme