RESEARCH REPORTS FROM INSTITUTE FOR AGRO-MICROBIOLOGY, Vol. 2, 1998 p.41-48
Copyright © Institute for Agro-Microbiology. All Rights Reserved.

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GRANT REPORT

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4.Microbiological characteristics of soils suppressive to soil

-Microbial community structure and diversity as evaluated from soil DNA and functions-

Koki Toyota(Gaduate School of BioAgricultural Sciences, Nagoya University)

To elucidate microbiological characteristics responsible for the suppressiveness of soils suppressive to Fusarium-wilt of radish, a variety of microbiological tests were used: the numbers of total bacteria and culturable bacteria, the morphotypes of the culturable bacteria, 16S rDNA PCR-RFLP, substrate utilization patterns using Biolog plates etc. Some methods clearly discriminated the microbial community structure of a suppressive soil from that of a conducive soil, others did not. Further studies are required to identify the microbial community characteristic to disease suppressive soils.

Keywords: Microbial diversity, Community structure, Biolog, Suppressive soil, 16S rDNA/