生物技术通报 ›› 2016, Vol. 32 ›› Issue (7): 126-130.doi: 10.13560/j.cnki.biotech.bull.1985.2016.07.019

• 研究报告 • 上一篇    下一篇

韦兰胶合成菌的原生质体制备与再生研究

周明明1, 李晓雁2, 任梦楠1, 程珂萌1, 黄海东1   

  1. 1. 天津农学院农学与资源环境学院,天津 300384;
    2. 天津农学院食品科学与生物工程学院,天津 300384
  • 收稿日期:2015-11-19 出版日期:2016-07-25 发布日期:2016-07-25
  • 作者简介:周明明,女,硕士研究生,研究方向:微生物多糖;E-mail:zmmydx@126.com
  • 基金资助:
    国家自然科学基金项目(31571790)

Conditions for Protoplast Preparation and Regeneration by Sphingomonas sp. ATCC 31555

ZHOU Ming-ming1, LI Xiao-yan2, REN Meng-nan1, CHENG Ke-meng1, HUANG Hai-dong1   

  1. 1. College of Agronomy and Resources & Environment,Tianjin Agricultural University,Tianjin 300384;
    2. College of Food Science and Biotechnology,Tianjin Agricultural University,Tianjin 300384
  • Received:2015-11-19 Published:2016-07-25 Online:2016-07-25

摘要: 旨在研究EDTA预处理、菌龄、酶解浓度、酶解温度及酶解时间对Sphingomonas sp. ATCC 31555原生质体制备与再生的影响。结果表明,菌龄10 h,12 mmol/L EDTA预处理,溶菌酶浓度45 µg/mL、酶解温度28℃、酶解时间25 min。得到原生质体的形成率达97.3%,再生率达33.9%。研究结果为菌株进行原生质体融合、基因组改组等选育优良菌种提供参考。

关键词: 鞘氨醇单胞菌, 韦兰胶, 原生质体, 再生

Abstract: The effects of EDTA pretreatment,cell age and the concentration,temperature and work time of enzymolysis on protoplast formation and regeneration by Sphingomonas sp. ATCC 31555 were studied. The results showed that the formation rate and regeneration rate reached 97.3% and 33.9% respectively,when the cells cultivated 10 h,pretreated by 12 mmol/L EDTA,using 45 μg/mL of lysozyme,enzymolysis at 28℃ for 25 min. The result of this paper provides a reference for breeding fine microbial strains by protoplast fusion and genome shuffling.

Key words: Sphingomonas, welan gum, protoplast, regeneration