摘要
猕猴桃茎段产生的愈伤组织,经过冷驯化处理后,加入5%DMSO和10%葡萄糖,以一1℃·min^(-1)降温速率降至一60一-75℃,投入液氮中保存。在液氮中存放时间的长短对愈伤组织存活率没有影响,在35一40℃水浴中迅速化冻,将化冻后的材料接种在MS附加0.05mg·1^(-1)2,4一D及1.0mg·1^(-1)ZT的培养基上暗培养,待开始恢复生长转在光下培养15一20d,再转接在只含有1.0mg·1^(-1)ZT的MS分化培养基上,20一30d后分化出芽,并形成植株。
Kiwifruit(Actinidia deliciosa)calli occured on MS media after cooling acclimatization
were put into cry-opreservation agent composed of 5%DMSO and 10%glucose,by step-freezing
with ̄-1℃· min ̄(-1) to 60℃一-75℃ and immersed in liquid nitrogen(LN2).The survival
rates of cells had no significant differ-ence during storage inLN2.The calli were thawed in water
bath at 35℃一40 ℃ and cultured on MS mediawith 1mg·l ̄(-1)ZT plus 0.05 1mg·1 ̄(-1)2,4
一Din dark,when calli resumed to grow,the samples were movedinto light condition for 15一20
days,they would differentiate meristem and induce shoots on MS media
with1mg·1-1ZT
出处
《果树科学》
CSCD
北大核心
1996年第2期88-91,共4页
Journal of Fruit Science
基金
高等学校博士学科点专项科研基金
关键词
猕猴桃
愈伤组织
超低温保存
Kiwifruit(Actinidia deliciosa)
Callus
Cryopreservation