【作者】 赵海涛； 杨春起； 明军； 穆鼎； 刘春；

【Author】 ZHAO Hai-tao,LIU Chun,MING Jun and Mu Ding (Institute of Vegetables and Flowers,Chinese Academy of Agricultural Sciences,Beijing 100081)

【机构】 中国农业科学院蔬菜花卉研究所； 北京盛斯通生态科技有限公司；

【摘要】 以东方百合Siberia为材料,研究了ABA及其抑制剂Fluridone对试管鳞茎形态发育及休眠的影响,结果表明:在光照培养条件下,外源ABA对鳞片叶生成具有显著的抑制作用。Fluridone可以降低鳞茎的休眠程度,当外源ABA与其同时存在时,Fluridone这种降低鳞茎休眠程度的作用会被逆转,说明外源ABA可以促进鳞茎休眠。鳞茎的休眠程度在15℃、20℃、25℃培养条件下会随温度升高而加深,在25℃条件下鳞茎进入完全休眠,较低浓度的外源ABA对于15℃、20℃、25℃条件下鳞茎的休眠没有促进作用。百合试管鳞茎休眠深浅与其形态发育没有直接的因果关系。更多还原

【Abstract】 The effects of ABA on the development of morphology and dormancy of bulblets in vitro of Oriental hybrids Siberia were investigated.The results showed that the exogenous ABA can inhibite the formation of scal-leaves in the light.Fluridone,an inhibitor of ABA-synthesis,can reduce the levels of dormancy,and the function can be reversed while adding exogenous ABA.It suggested that the exogenous ABA can promote the development of dormancy.The dormancy levels of in vitro bulblets cultured at 15℃、20℃、25℃will be raised, but the exogenous ABA had no effect on the bulblets at 15℃、20℃、25℃with a low level of dormancy.There is no relation between the morphology development and the dormancy levels.更多还原