Suppressive Effect of Water Extract from Spent Mushroom Substrate of Pleurotus eryngii against Tomato Bacterial Wilt Disease

A-Min  Kwak1   Sang-Yeop  Lee4   Hee-Wan  Kang123,*   

1Graduate School of Future Convergence Technology, Hankyong National University
2Department of Horticultural Life Science, Hankyong National University
3Institute of Genetic Engineering, Hankyong National University
4Agricultural Microbiology Division, National Institute of Agricultural Sciences

Abstract

Water extract from spent mushroom substrate (WESMS) of Pleurotus eryngii suppressed bacterial wilt disease of tomato caused by Ralstonia solanacearum by 70% without any direct antibacterial activity against the pathogen. WESMS-treated tomato had increased contents of free phenolic compounds (increased by 3%) and total salicylic acid (increased by 75%), and significantly enhanced plant height, leaf number, and fresh weight compared to those of a water-treated tomato sample. These results suggest that the treatment of tomato with WESMS can suppress bacterial wilt disease by enhancing plant defense factors and overall plant health.

Figures & Tables