Analysis of metagenome and metaranscriptome of endophytic microorganisms in plants and its application for disease control

2015 Fiscal Year Final Research Report

• Project/Area Number: 24658037
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Plant pathology
• Research Institution: Tohoku University
• Principal Investigator: Takahashi Hideki 東北大学, (連合)農学研究科(研究院), 教授 (20197164)
• Project Period (FY): 2012-04-01 – 2016-03-31
• Keywords: 内生菌 / 根圏微生物 / 植物 / メタゲノム / 遺伝子

Outline of Final Research Achievements

Organic rice farming system has been successfully established in a number of local regions in Japan. The outbreak of plant diseases is effectively suppressed in the organic farming system. The features common to nine organic farmed soils used for rice nursery cultivation, which were supplied by nine independent organic rice farmers, were analyzed. The emergence of bacterial seedling diseases was equally suppressed in nine organic farmed soils, but not two conventional soils. On physicochemical analysis of those soils, there was not either any component common to nine organic soils or difference between organic soils and control conventional soils. On the other hands, bacterial and fungal microbiome analysis indicated that their populations in nine organic soils were more diverse than those in conventional soils. The diverse of microbiome may play an indispensable role for suppressing rice seedling diseases in organic agriculture.

Free Research Field

植物病理学