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园艺学报 ›› 2008, Vol. 35 ›› Issue (3): 423-426.

• 研究简报 • 上一篇    下一篇

李离体茎尖的超低温保存

赵艳华1 ;吴雅琴1 ;程和禾1 ;李春敏1 ;陈晓玲2*;卢新雄2   

  1. 1河北省农林科学院昌黎果树研究所,河北昌黎066600; 2中国农业科学院作物科学研究所, 北京100081)
  • 收稿日期:2007-11-18 修回日期:2008-01-24 出版日期:2008-03-25 发布日期:2008-03-25
  • 通讯作者: 陈晓玲

Cryopreservation of Shoot Tips from Prunus

ZHAO Yan-hua1, WU Ya-qin1, CHENG He-he1 , LI Chun-min1 ,CHEN Xiao-ling2* and LU Xin-xiong2   

  1. (1Changli Institute of Pomology,Hebei Academy of Agricultural and Forestry Sciences, Changli,Hebei, 066600,China;2Institute of Crop Sciences, Chinese Academy of Agricultural Sciences,Beijing 100081 China)
  • Received:2007-11-18 Revised:2008-01-24 Online:2008-03-25 Published:2008-03-25
  • Contact: CHEN Xiao-ling

摘要:

以简单玻璃化法为基本方法,研究了影响李离体茎尖超低温保存的因子—继代培养时间、低温驯化时间、PVS3处理时间以及化冻后茎尖存活检测;建立了较为简单的李离体茎尖超低温保存技术程序:即选择继代培养120 d的试管材料,经过5 ℃低温驯化21 d,0.7 mol·L-1蔗糖预培养1 d,PVS3处理100 min,浸入液氮。化冻后茎尖存活率可达60 %以上。

关键词: 李, 离体茎尖, 超低温保存

Abstract: The current paper studied factors that effect the cryopreservation of Prunus salicina Lindl in-vitro shoot tips. By using simple vitrification technique,factors like, culture time, PVS3 treatment time and cold hardening were all tested ,the rapid examination method of shoot tips survival was studied,and a sample procedure was established at last.When shoot tips were excised from healthy in vitro plants of prunus cultivars,that have been subcultured for 120d and followed by 5 ℃ cold hardening for 21d ,and precultured with 0.7 mol.L-1 sucrose for 2d, treated with PVS3 for 100 min before direct plunging into liquid nitrogen,the survival after cryopreservation was higher than 60.0%.

Key words: Prunus, shoot tips, cryopreservation

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