Applied Biological Chemistry

The Korean Society for Applied Biological Chemistry (한국응용생명화학회)
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Suppression of Bacterial Wilt with Fuorescent Pseudomonads, TS3-7 strain

Fluorescent siderophore 생산균주, TS3-7에 의한 풋마름병 발병 억제

  • Kim, Ji-Tae (Department of Biological Engineering, Seokyeong University) ;
  • Cho, Hong-Bum (Department of Biological Engineering, Seokyeong University) ;
  • Kim, Shin-Duk (Department of Biological Engineering, Seokyeong University)
  • Published : 2005.09.30
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Abstract

Among the root colonizing and plant growth promoting bacteria isolated from the bacterial wilt suppressive soil, five strains were detected to produce siderophores by CAS agar assay. The most effective isolate, TS3-7 strain induced significant suppression of bacterial wilt disease in tomato and pepper plants. Seed treatment followed by soil drench application with this strain resulted in over 80% reduction of bacterial wilt disease compared with the control. Significant disease suppression by TS3-7 strain was related to the production of siderophore. Besides iron competition, induction of resistance of the host plant with siderophore was suggested to be another mode of action that suppress bacterial wilt, based on the lack of direct antibiosis against pathogen in vitro. According to Bergey's Manual of Systemic Bacteriology and 16S rDNA sequence data, TS3-7 stain was identified as Pseudomonas sp. TS3-7.

Keywords

References

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