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园艺学报 ›› 2002, Vol. 29 ›› Issue (4): 369-371.

• 研究报告 • 上一篇    下一篇

罗田甜柿原生质体分离、培养及植株再生

谷晓峰1;罗正荣1,2*
  

  1. (1 华中农业大学园艺系, 武汉430070; 2 湖北民族学院园艺系, 恩施445000)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2002-08-25 发布日期:2002-08-25

Studies on the Isolation, Culture of Protoplast and Plant Regeration inLuotiantianshi Persimmon

Gu Xiaofeng1 and Luo Zhengrong1,2*
  

  1. (1College of Horticulture and Forestry , Huaz hong Agricultural University , Wuhan 430070, China; 2Department of Horticulture, Hubei Institute for Nationalities, Enshi 445000, China)
  • Received:1900-01-01 Revised:1900-01-01 Online:2002-08-25 Published:2002-08-25

摘要: 以‘罗田甜柿’休眠芽茎尖诱导的愈伤组织为试材, 对原生质体分离培养技术进行了研究。
结果表明: ( 1) 继代10 d 的愈伤组织最适于分离原生质体; ( 2) 优化的酶解体系为CPW+ 0. 5% Cellulase Onoruka R-10+ 0. 03% Pectinase from Aspergillus Niger+ 0. 7 mol/ L Mannitol+ 1% PVP-10; ( 3) 原生质纯化方式以上浮法为好, 100×g 离心6 min; ( 4) 琼脂糖念珠培养5~ 6 d 观测到第1 次分裂, 多为不均等分裂, 60~70 d 形成肉眼可见的小愈伤组织, 愈伤组织增殖到5 mm 以上, 分化成苗, 转至生根培养基生根。

关键词: 甜柿, 原生质体, 分离, 培养, 植株再生

Abstract: The conditions of isolation and culture of protoplasts from leaf primordial excised from dormant buds of adult nonastringent presimmon Luot iantianshi were studied. The best combination of enzymes selected for protoplast isolation from the calli subcultured 10 d was CPW+ 0. 5% Cellulas R-10+ 0. 03% Pedinase+0. 7 mol/ L Mannitol+ 1% PVP-10. Protoplast purification could be obtained by means of floating collection and centrifugat ion. Protoplast divided for the f irst time after 5- 6 d, formed multicell clusters and grew into visible minicallus after 60- 70 d, then minicallus was transferred onto calli agar medium for proliferat ion. When the calli grew to more than 5 mm in diameter, they were induced to advent itious bud and rooted.

Key words: Nonastringent persimmon, Protoplast, Isolation, Culture, Plant regeneration

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