摘要
锡金海棠[Malus sikkimensis(Wenz.)Koehne]是我国稀有植物和优良苹果砧木种质资源。本研究探讨了影响锡金海棠离体再生的条件,建立了锡金海棠子叶高效离体再生体系。结果表明,子叶再生体系的最佳诱导培养基为SC+0.1mg·L-1NAA+2.0mg·L-1TDZ,最佳分化培养基为SC+0.1mg·L-1NAA+1.5mg·L-1TDZ,最佳继代增殖培养基为SC+2.0mg·L-16-BA+0.2mg·L-1NAA,最佳生根培养基为1/2MS+1.0mg·L-1IBA。炼苗后,移入珍珠岩、花生壳与草炭(1:1:1)的基质中,20d移栽成活率高达90%。
Malus sikkimensis are rare plants and excellent germplasm resources of apple rootstock in China.In this study,the cotyledons of Malus sikkimensis were used as explants in the investigation of the affective factors of in vitro regeneration conditions and the establishment of efficient regeneration system.The results showed that the best induced medium for callus induction was SC medium with 0.1 mg·L-1 NAA,2.0 mg·L-1 Thidiaz-uron(TDZ);the best medium for bud differentiation was SC medium with 0.1 mg·L-1 NAA,1.5 mg·L-1 TDZ.The best medium for root differentiation was 1/2 MS medium with 1.0 mg·L-1 IBA.After acclimatization,the culture-bottle seedlings were transplanted into the matrix,which contains peanut,shells and peat(1:1:1).The survival rate was up to 90%.
作者
吴瑞刚
杨洪强
冉昆
张玮玮
WU Rui-Gang;YANG Hong-Qiang;RAN Kun;ZHANG Wei-Wei(College of Horticulture Science and Engineering,Shandong Agricultural University,State Key Laboratory of Crop Biology,Tai'an,Shandong 271018,China)
出处
《植物生理学报》
CAS
CSCD
北大核心
2012年第10期1011-1014,共4页
Plant Physiology Journal
基金
国家自然科学基金(31171923)
国家转基因生物新品种培育重大专项(2008ZX08009-3)
高校博士学科点专项科研基金(20103702110003)
关键词
锡金海棠
离体再生
组织培养
外植体
Malus sikkimensis
in vitro regeneration
tissue culture
explants
