Pseudomonas azotoformans HC5 Effective in Antagonistic of Mushrooms Brown Blotch Disease Caused by Pseudomonas tolaasii

Jun-Ho Kim1   Jun-Ho Kim1   Jun-Ho Kim1   Jun-Ho Kim1   Jun-Ho Kim1   Jun-Ho Kim1   Jun-Ho Kim1   Jun-Ho Kim1   Jun-Ho Kim2   Jun-Ho Kim3   


A gram-negative bacterium was isolated from spent substrate of Agaricus bisporus and showed marked antagonistic activity against Pseudomonas tolaasii. The bacterium was identified as Pseudomonas azotoformans by based on the cultural, biochemical and physiological characteristics, and 16S rRNA gene sequence. The isolated bacterium was saprophytic but not parasitic nor pathogenic to cultivation mushroom. The isolated bacterium for P. tolaasii cell was not sufficient for inhibition in vitro. Control efficacy of Pseudomonas azotoformans HC5 to brown blotch of P. tolaasii was 73, 78, and 71% on A. bisporus, Flammulina velutipes, and Pleurotus ostreatus, respectively. In the future, the suppressive bacterium may be useful for development of a biocontrol system.


본 연구는 농촌진흥청 기관고유 연구과제(PJ0099610120 14)에 의하여 수행된 연구결과입니다.

Figures & Tables