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园艺学报 ›› 2007, Vol. 34 ›› Issue (3): 609-614.

• 果树 • 上一篇    下一篇

余甘子下胚轴离体再生体系的优化

胡海涛1,2;高 月1; 兰大伟1,3 ;刘永立1*
  

  1. (1 浙江大学农业与生物技术学院, 杭州310029; 2 浙江师范大学化学与生命科学学院, 浙江金华321004; 3 浙江工商大学统计与数学学院, 杭州310018)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2007-06-25 发布日期:2007-06-25

The Establishment and Optimiza tion of a Highly Efficient System of ShootRegeneration from Hypocotyl Explants of Phyllanthus emblica L.

HU Hai-tao1,2; GAO Yue1;LAN Da-wei1,3;LIU Yong-li1*
  

  1. (1 College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310029, China; 2 College of Chemistry and Life Science, Zhejiang Normal University, Jinhua, Zhejiang 321004, China; 3 College of Mathematics and Statistics, Zhejiang Industryand Commerce University, Hangzhou 310018,China)
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-06-25 Published:2007-06-25

摘要: 以余甘子( Phyllanthus emblica L. ) 下胚轴为外植体, 通过器官发生途径诱导形成不定芽, 探
讨影响下胚轴器官发生和植株再生的因素, 建立了下胚轴高效再生体系。结果表明: 附加AgNO3 1 mg·L-1
和蔗糖40 g·L-1的1 /2MS培养基最适合不定芽的分化; 下胚轴不同部位不定芽再生能力由强到弱表现为:
形态学上部>中部>下部; 前期暗培养有利于下胚轴不定芽的形成, 暗处理14 d效果最好。通过以上优化
措施可以使不定芽再生率达100% , 平均每外植体不定芽数11.7 个。不定芽较适生根培养基为胺鲜酯
(DA26) 3 mg·L-1 +复硝酚钠(CSN) 3 mg·L-1 , 生根率达到62.8%。

关键词: 余甘子, 愈伤组织, 植物生长调节剂, 下胚轴, 不定芽再生

Abstract: An efficient p lant regeneration p rotocol for Phyllanthus em blica L. was achieved via organo2
genesis from callus tissues formed on hypocotyl exp lants in vitro. In this paper, several factors affecting in vitro
regeneration of Phy llanthus em blica L. were examined. The op timum medium for shoot regeneration was 1 /2
MSmedium containing 011μmol·L-1 NAA, 5μmol·L - 1 BA, 40 g·L-1 sucrose, 1 mg·L-1 AgNO3. The
op timum exp lants were upper segments of hypocotyl of 282day-old seedlings. Under 14 d dark treatment,
100% of adventitious shoot regeneration frequency with 1117 shoots per exp lantwas obtained. Excised shoots
rooted when theywere transferred to 1 /2MSmedium containing 3 mg·L-1 22 ( diethylamino) ethyl ester cit
rate (DA26) + 3 mg·L-1 compound sodium nitrophenolate (CSN ) after 35 days and developed into
healthy p lantlets, which resulted in a rooting rate of 62.8%. The results of this studywill facilitate the app li
cation of genetic transformation methods in Phyllanthus emblica L.

Key words: Phyllanthus emblica L., Callus, Plant growth regulator, Hypocotyl, Shoot regeneration