• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

2019 Fiscal Year Final Research Report

Study on the physiological function and gene expression mechanism of Lentinula edodes laccase genes by RNAi method

Research Project

  • PDF
Project/Area Number 15K07807
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Environmental agriculture(including landscape science)
Research InstitutionKitami Institute of Technology

Principal Investigator

Sato Toshitsugu  北見工業大学, 工学部, 准教授 (00390881)

Project Period (FY) 2015-04-01 – 2020-03-31
Keywordsラッカーゼ / シイタケ / 遺伝子発現抑制 / デュアルプロモータ型RNAiベクター / リアルタイムPCR
Outline of Final Research Achievements

Lentinula edodes laccases are an industrially useful enzyme, and more than 14 genes have been confirmed in the genome, however, the function of laccases and the regulation mechanism of the laccase genes expression are unknown. In this study, the suppression of the secretory Lcc1 gene using a dual promoter type of RNAi vector was studied for the purpose of elucidating the regulation mechanism of L. edodes laccase genes expression. As a result, it was revealed that lcc1 which showed the highest expression in the host strain was suppressed, and newly expressed Lcc5 which was hardly expressed in the host strain. There was a difference in the levels of lcc1 repression depending on the recombinants, while the expression of lcc5 was confirmed in all the recombinants.

Free Research Field

応用微生物学

Academic Significance and Societal Importance of the Research Achievements

ラッカーゼ(Lcc)は産業上有用な酵素であるが、安全と考えられるシイタケなどの食用担子菌による大量生産システムは確立されていない。それを実現するためには、Lcc の発現メカニズムの解明が不可欠であるが、シイタケに関しては、ほとんどわかっていない。今回独自に作成したデュアルプロモータ型 RNAiベクターを用いて、シイタケの分泌型Lccであるlcc1遺伝子の発現抑制によって、新規にLcc5が発現してくることが明らかとなった。この結果は、さらにその解析を進めていくことによって、シイタケLccの高発現系確立のための基礎的知見として有用である。

URL: 

Published: 2021-02-19  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi