Hg^(2+)对矮牵牛组培苗生长的影响  

Effect of Hg^(2+) on the Growth of Tissue Culture Seedlings of Petunia hybrida Vilm

作　　者：程哲[1] 赵文若[1] 建德锋[1] 

机构地区：[1]吉林农业科技学院,吉林吉林132101

出　　处：《黑龙江农业科学》2012年第12期19-21,共3页Heilongjiang Agricultural Sciences

摘　　要：以矮牵牛组培苗为试验材料,在培养基中添加不同浓度的HgCl2,分析Hg2+对矮牵牛组培苗生长方面的影响。结果表明:低浓度的Hg2+对矮牵牛的生长影响不大,表现为叶片数、株高、鲜重均超过对照,叶绿素也能正常合成,临界浓度为HgCl210μg.mL-1。而当HgCl2浓度超过150μg.mL-1时,植株就会死亡,说明HgCl2对矮牵牛产生毒害的致死浓度为150μg.mL-1。Taking tissue culture seedlings of Petunia hybrida Vilm as test materials,and added different density HgCl2 in the medium to study the effect of Hg2＋ on the growth of tissue culture seedlings of Petunia hybrida Vilm. The results showed that there were not significant effects of lower density Hg2＋ on the growth of Petu- nia hybrida, expressed as the number of leaves, plant height, fresh weight were all higher than that of the con- trol,chlorophyll could also be normal synthesis,and the critical density was HgCl2 10μg·mL^-1. When the den- sity of HgCI2 exceed 150 μg·mL^-1 ,plants would he dead, expressed as the lethal density of Petunia hybrlda produced toxic by HgClz was 150μg·mL^-1.

关 键 词：Hg2+ 矮牵牛组培苗 生长 叶绿素 

分 类 号：S681.9[农业科学—观赏园艺]