生物技术通报 ›› 2018, Vol. 34 ›› Issue (4): 77-82.doi: 10.13560/j.cnki.biotech.bull.1985.2018-0151

• 技术与方法 • 上一篇    下一篇

马铃薯晚疫病菌原生质体制备及再生体系的研究

王伟伟1, 2, 肖燕1, 张艺夕1, 刘晶1, 2, 唐唯1, 2, 李灿辉1, 2   

  1. 1. 云南师范大学生命科学学院,昆明 650500;
    2. 云南师范大学马铃薯科学研究院,昆明 650500
  • 收稿日期:2018-02-24 出版日期:2018-04-20 发布日期:2018-05-04
  • 作者简介:王伟伟,女,硕士研究生,研究方向:马铃薯晚疫病的抗病性;E-mail:1174043860@qq.com
  • 基金资助:
    国家自然科学基金项目(31660503)

Preparation and Regeneration Method of Phytophthora infestans Protoplast in Potato

WANG Wei-wei1, 2, XIAO Yan1, ZHANG Yi-xi1, LIU Jing1, 2, TANG Wei1, 2, LI Can-hui1, 2   

  1. 1. School of Life Science,Yunnan Normal University,Kunming 650500;
    2. Joint Academy of Potato Science,Yunnan Normal University,Kunming 650500
  • Received:2018-02-24 Published:2018-04-20 Online:2018-05-04

摘要: 为明确致病疫霉的致病机理需要建立高效的病原菌原生质体制备和再生体系。通过对马铃薯晚疫病菌制备和再生过程的研究,采用两种裂解酶Driselase和Cellulase R-10,以不同菌龄、裂解酶、裂解酶的浓度和裂解酶的反应时间为研究条件,得到原生质体制备的最佳条件为:以培养18 d的菌丝体为材料,用10 mg/mL Driselase处理菌丝60 min后,原生质体产量达9.5×104 个/g;以0.1 mol/L氯化钙和0.4 mol/L甘露醇作为渗透压稳定剂,以黑麦V8固体再生培养基得到的原生质体再生率最高达3.1%。

关键词: 马铃薯, 晚疫病菌, 原生质体, 制备与再生

Abstract: For better understanding the pathogenicity of Phytophthora infestans,a highly efficient system of preparing and regenerating protoplast should be established. In this study,two lyases,Driselase and Cellulase R-10,were used to prepare protoplasts. The effects of different hyphal age,lyase,lyase concentration,and enzymolysis time on the protoplast preparation were discussed. The optimized method was established with the 18-day-old mycelia,the yield of protoplast reached 9.5 × 104 cells/g after 60 min treatment with 10 mg/mL Driselase. The protoplast regeneration rate was up to 3.1% in rye V8 culture medium supplemented with 0.1 mol/L calcium chloride and 0.4 mol/L mannitol as the osmotic stabilizer.

Key words: potato, Phytophthora infestans, protoplast, preparation and regeneration