基于植物生长调节剂萘乙酸和6-苄氨基嘌呤组合的红花组织培养体系的优化
2016-01-11薛英茹,李东巧,高越等
·论著·
基于植物生长调节剂萘乙酸和6-苄氨基嘌呤组合的红花组织培养体系的优化
薛英茹,李东巧,高越,郭美丽*(第二军医大学药学院生药学教研室,上海 200433)
[摘要]目的:建立高效的红花(Carthmus tinctorius L.)离体组织培养体系,为红花的基因操作搭建平台。方法:以萌发6~8 d的红花无菌苗子叶为外植体,选用MS基础培养基,应用萘乙酸(1-naphthylacetic acid,NAA)+6-苄氨基嘌呤(6-benzyl amino purine,6-BA)+激动素(kinetin,KT)为组织培养的植物生长调节剂,优化红花的组织培养体系。结果:红花组织培养的最佳植物生长调节剂配方为:NAA 2.0 mg/L+6-BA 4.0 mg/L+KT 20.0 mg/L,添加活性炭(4 g/L)或硝酸银(5 mg/L),光照时间为16 h/d,光照强度9000 lx,培养温度为(25±2) ℃,平均愈伤组织发生率高达86.4%,而且再生芽生长稳定,重现性高。结论:本研究优化建立了红花的不定芽再生体系,为红花基因操作平台的建立奠定了基础。
[关键词]红花;组织培养;萘乙酸;6-苄氨基嘌呤;激动素
[中图分类号]R931.2[文献标志码]A
DOI:10.5428/pcar20150203
基金项目国家自然科学基金(81173484,81473300),上海市自然科学基金(13ZR1448200)
作者简介薛英茹(女),硕士生.
[收稿日期]2014-12-09
Optimization ofCarthamustinctoriusL. tissue culture system based on the combination of 1-naphthylacetic acid and 6-benzyl amino purine
XUE YingRu,LI DongQiao,GAO Yue,GUO MeiLi*(Department of Pharmacognosy,School of Pharmacy,Second Military Medical University,Shanghai 200433,China)
ABSTRACT[]Objective:To establish the regeneration system of safflower (Carthamus tinctorius L.),so as to create a platform of gene manipulation of safflower.Methods:Through tissue culture experiments,cotyledons germinated 6-8 days of safflower were selected as explants and cultured with Murashige and Skoog(MS) as the basal medium at (25±2) ℃ temperature with 16 h/d illumination and 9000 lx light intensity. Results:The optimum callus medium of safflower was MS basal medium supplemented with 1-naphthylacetic acid(NAA) 2.0 mg/L+6-benzyl amino purine(6-BA) 4.0 mg/L+kinetin (KT) 20.0 mg/L and addition of acticarbon(4 g/L) or silver nitrate(5 mg/L),which made the callus mean rate as high as 86.4% and with higher regeneration bud grow stability and reproducibility. Conclusion:The research optimized adventitious shoot regeneration system and established the foundation for safflower gene manipulation platform.
[KEY WORDS]CarthamustinctoriusL.;tissue culture;1-naphthylacetic acid;6-benzyl amino purine;kinetin
[Pharm Care Res,2015,15(2):91-94]
E-mail:xueyingru469376081@126.com;
李东巧(女),硕士生.
E-mail:butterfly_qiao@163.com;两人为共同第一作者
*通信作者(Corresponding author):郭美丽,E-mail:mlguo@126.com
红花(CarthamustinctoriusL.)是菊科一年或两年生草本植物,红花花冠是传统的活血化瘀中药,具有扩张冠状动脉、抗凝、降血压、耐缺氧、防治血栓、抗炎镇痛等多种药理作用,临床应用广泛[1,2]。建立高效的红花离体组织培养再生体系,对于红花的基因改造具有极其重要的意义。国内外有关红花的组织培养工作一直有断断续续的报道,但由于红花含有大量黄酮类成分,容易褐化,不同产地、不同红花品种再生所需要的诱导条件不同,以及红花自身的特性等,导致其再生芽生长非常困难[3,4]。……
