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植物研究 ›› 1999, Vol. 19 ›› Issue (3): 313-317.

• 论文 • 上一篇    下一篇

光棘豆悬浮细胞原生质体培养影响因素的研究

张根发1, 周延清2, 张飞雄3, 李效宇2   

  1. 1. 北京师范大学生物系, 北京 100875;
    2. 河南师范大学生物系, 新乡 453002;
    3. 首都师范大学生物系, 北京 100037
  • 收稿日期:1998-10-08 出版日期:1999-09-15 发布日期:2016-06-14

FACTORS AFFECTING PLANT REGENERATION FROM PROTOPLASTS DERIVED FROM CELL-SUSPENSION CULTURES OF OXYTROPIS LEPTOPHYLLA

Zhang Gen-fa1, Zhou Yan-qing2, Zhang Fei-xiong3, Li Xiao-yu2   

  1. 1. Department of Biology, Beijing Normal University, Beijing 100875;
    2. Department of Biology, Henan Normal University, Xinxiang 453002;
    3. Department of Biology, Capital Normal University, Beijing 100037
  • Received:1998-10-08 Online:1999-09-15 Published:2016-06-14

摘要: 采用光棘豆无菌苗胚轴诱导的分化能力强的愈伤组织建立的胚性细胞悬浮系材料,对悬浮细胞原生质体解离所需酶液、原生质体培养所需要的渗透压和激素组合进行了研究。发现较低的培养基渗透压(<0.35 mol/L葡萄糖)和较高浓度的2, 4-D(>1 mg/L)易于诱导细胞出芽分裂,导致细胞破碎和死亡,并引起培养细胞褐化。找出了适合光棘豆悬浮细胞原生质体培养的培养基渗透压和激素组合。

关键词: 光棘豆, 原生质体, 激素, 渗透压, 悬浮细胞

Abstract: Cell-suspension cultures derived from the calli initiated from plumalar axis of Oxytropis leptophylla were used for studying the effects of different enzymes, phytohormones and osmotic pressure in medium (e. g. the content of glucose) on protoplast isolation and culture. The results showed that the protoplasts were easy to damage into small segments when osmotic pressure was out of balance for protoplats' protoplasm. It was also found that the low osmotic pressure acted similarly to 2,4-D at high concentration in inducing the cell budding division, which resulted in death of cells. The optimum osmotic pressure and phytohormones combination was determined.

Key words: Oxytropis leptophylla, Protoplast, Phytohormone, Osmotic pressure, Cell-suspension