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2017 Fiscal Year Final Research Report

Does caffene function as rhizosphere signal?

Research Project

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Project/Area Number 16K14901
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Applied biochemistry
Research InstitutionKyoto University

Principal Investigator

Sugiyama Akifumi  京都大学, 生存圏研究所, 准教授 (20598601)

Project Period (FY) 2016-04-01 – 2018-03-31
Keywordsカフェイン / 根圏微生物
Outline of Final Research Achievements

In this study transgenic tomato plants expressing genes involved in the caffeine synthesis was generated. These transgenic plants synthesized caffeine and secreted as well. The effect of caffeine to the rhizosphere microbes was analyzed. More than 20 strains were isolated from rhizosphere soils of coffee plants. No of these bacteria showed caffeine metabolizing activities. The effect of caffeine to these bacterial was tested in vitro. Caffeine synthesis and secretion were also analyzed using the seedlings of coffee plants. From the genome analysis and gene expression analysis several candidate genes involved in the caffeine secretion were isolated.

Free Research Field

植物生化学

URL: 

Published: 2019-03-29  

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