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Related Experiment Video

Updated: Jun 2, 2026

On-Site Molecular Detection of Soil-Borne Phytopathogens Using a Portable Real-Time PCR System

On-Site Molecular Detection of Soil-Borne Phytopathogens Using a Portable Real-Time PCR System

Published on: February 23, 2018

A new diagnostic method for soil-borne disease using a microbial biosensor.

Yoshihiro Hashimoto¹, Hideaki Nakamura, Koichi Asaga

¹Sakata Seed Corporation.

Microbes and Environments

|May 12, 2011

Summary

This study introduces a novel dual biosensor system for rapid soil-borne disease diagnosis. The system effectively differentiates between healthy and infested soils and monitors disease inhibition by antagonists.

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Last Updated: Jun 2, 2026

On-Site Molecular Detection of Soil-Borne Phytopathogens Using a Portable Real-Time PCR System

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Published on: February 23, 2018

Development of an Electrochemical DNA Biosensor to Detect a Foodborne Pathogen

Development of an Electrochemical DNA Biosensor to Detect a Foodborne Pathogen

Published on: June 3, 2018

Area of Science:

Agricultural Science
Biotechnology
Environmental Science

Background:

Soil-borne diseases pose a significant threat to crop production and food security.
Accurate and rapid diagnosis is crucial for effective disease management and mitigation strategies.

Purpose of the Study:

To develop and validate a novel dual biosensor system for the rapid diagnosis of soil-borne plant diseases.
To assess the system's capability in differentiating between healthy and infested soils.
To evaluate the system's efficacy in monitoring the impact of antagonists on disease development.

Main Methods:

Development of a dual biosensor system comprising two distinct microbial species immobilized on separate electrodes.
Simultaneous measurement of microbial respiration via dissolved oxygen decrease using oxygen electrodes.
Application of the biosensor system to analyze soil extracts from pathogen-infested and non-diseased soils.
Investigation of antagonist effects on disease inhibition using the biosensor system and correlation with symptom development.

Main Results:

The dual biosensor system demonstrated a higher ratio of responses for non-diseased soils compared to pathogen-infested soils.
A significant correlation was observed between the ratio of biosensor responses and the development of disease symptoms.
The system effectively monitored the inhibitory effects of antagonists on soil-borne diseases, with minor exceptions where an antagonist promoted disease.

Conclusions:

The developed dual biosensor system offers a rapid and effective method for diagnosing soil-borne diseases.
This technology has the potential to aid in disease management by providing timely diagnostic information.
The system's ability to monitor antagonist efficacy contributes to the development of sustainable agricultural practices.