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中国农学通报 ›› 2019, Vol. 35 ›› Issue (3): 40-46.doi: 10.11924/j.issn.1000-6850.casb17100002

所属专题: 生物技术 食用菌

• 生物技术科学 • 上一篇    下一篇

低温对蒙古口蘑菌丝体漆酶活性及其基因家族表达的影响

刘晓婷, 郭九峰   

  1. 内蒙古大学物理科学与技术学院
  • 收稿日期:2017-10-02 修回日期:2018-12-27 接受日期:2018-01-24 出版日期:2019-01-28 发布日期:2019-01-28
  • 通讯作者: 郭九峰
  • 基金资助:
    国家自然科学基金“高压电晕电场对微生物诱变效应的研究”(No.51267014)。

Effects of Low Temperature on Laccase Activity and Expression of Laccase Gene Families in Mycelium of Mongolian Mushroom (Tricholoma mongolicum)

  • Received:2017-10-02 Revised:2018-12-27 Accepted:2018-01-24 Online:2019-01-28 Published:2019-01-28

摘要: 蒙古口蘑是内蒙古草原久负盛名的野生食用菌。为实现其人工栽培,本文以蒙古口蘑次生菌丝体为实验材料,利用实时荧光定量PCR技术,研究了低温对蒙古口蘑漆酶活性及其基因家族转录水平的影响。结果表明:蒙古口蘑次生菌丝体漆酶活性普遍较高;随着培养时间的延长,漆酶活性普遍降低;低温刺激可不同程度地影响蒙古口蘑漆酶基因家族的转录,10℃处理菌丝体10天,可显著提高蒙古口蘑漆酶基因的表达水平,主要贡献是lacc1、lacc4、lacc8、lacc10、lacc11。结果可为日后实现蒙古口蘑人工栽培积累资料。

关键词: 白三叶, 白三叶, 温度, 可溶性糖, 丙二醛

Abstract: Mongolian Mushroom is a well-known wild edible fungus in Inner Mongolia grasslands. To achieve its artificial cultivation, in this paper, using Mongolian Mushroom secondary mycelia as experimental material, using real-time fluorescence quantitative PCR technique to study the effects of low temperature on Mongolian mushroom laccase activity and its gene family transcription level . The results showed that the laccase activity of Mongolian mushroom secondary mycelia was generally high; with the prolongation of culture time,laccase activity was generally decreased ; low temperature stimulation could affect the transcription of Mongolian mushroom laccase gene family in varying degrees .Mycelia were treated for 10 days at 10 ℃, it can significantly improve the expression levels of Mongolian mushroom laccase genes , the main contribution is lacc1, lacc4, lacc8, lacc10, lacc11. The results can be accumulated data to realize Mongolian mushroom artificial cultivation in the future .