生物技术通报 ›› 2015, Vol. 31 ›› Issue (2): 208-216.doi: 10.13560/j.cnki.biotech.bull.1985.2015.02.031

• 研究报告 • 上一篇    下一篇

斯达油脂酵母中自噬与油脂积累的关联性分析

韩冰, 杨琴, 崔清华   

  1. 云南大学生命科学学院,昆明 650091
  • 收稿日期:2014-07-14 出版日期:2015-02-05 发布日期:2015-02-06
  • 作者简介:韩冰,男,硕士研究生,研究方向:自噬与油脂代谢关系的研究;E-mail:1017830953@qq.com
  • 基金资助:
    云南省创新团队基金项目(2011C1123),国家自然科学基金项目(31160237)

An Investigation of Cellular Autophagy and Oil Accumulation in the Lipomyces starkeyi

Han Bing, Yang Qin, Cui Qinghua   

  1. The School of Life Sciences,Yunnan University,Kunming 650091
  • Received:2014-07-14 Published:2015-02-05 Online:2015-02-06

摘要: 旨在证明斯达油脂酵母中自噬参与油脂积累过程。在不同油脂积累水平下,检测相关自噬基因的表达,观察自噬与油脂积累是否有潜在相关性;用自噬促进剂促进自噬后,观察酵母油脂积累水平是否有差异。结果表明,与油脂低积累水平相比,在油脂高积累条件下,斯达油脂酵母自噬水平较低;用自噬促进剂处理后,酵母油脂积累降低。在斯达油脂酵母中,自噬与油脂积累成负相关性,自噬水平的提高会使酵母中油脂积累降低。

关键词: 自噬, 斯达油脂酵母, 油脂积累, 泛素样共轭体系

Abstract: It was to prove autophagy is involved in the accumulation of lipid in Lipomyces starkeyi. Detecting the expression of autophagy-related gene in different lipid accumulation level to determine whether autophagy is potentially involved in lipid accumulation; promoting autophagy by autophagy accelerator to observe whether there are differences in yeast lipid accumulation level. Results showed that the level of autophagy is low in high lipid accumulation condition compare with low condition. After treatment with autophagy accelerator, the lipid accumulation in yeast is reducing. In Lipomyces starkeyi, autophagy is negatively related to lipid accumulation, the improving of autophagy level will reduce the lipid accumulation in yeast.

Key words: autuphagy, Lipomyces starkeyi, oil accumulation, autophagy ubiquitin-like conjugated system