| Title: | Biological Potential of Bioorganic Fertilizer Fortified with Bacterial Antagonist for the Control of Tomato Bacterial Wilt and the Promotion of Crop Yields |
| Author(s): | Wu K; Fang Z; Wang L; Yuan S; Guo R; Shen B; Shen Q; |
| Address: | "National Engineering Research Center for Organic-based Fertilizers, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, P.R. China. Key Engineering Research Center of Ministry of Education for Sustainable Development and Utilization of Biomass Energy, College of Energy and Environmental Sciences, Yunnan Normal University, Yunnan 650500, P.R. China. Ningbo Academy of Agricultural Science, Zhejiang 315040, P.R. China" |
| ISSN/ISBN: | 1738-8872 (Electronic) 1017-7825 (Linking) |
| Abstract: | "The application of Bacillus sp. in the biological control of plant soilborne diseases has been shown to be an environmentally friendly alternative to the use of chemical fungicides. In this study, the effects of bioorganic fertilizer (BOF) fortified with Bacillus amyloliquefaciens SQY 162 on the suppression of tomato bacterial wilt were investigated in pot experiments. The disease incidence of tomato wilt after the application of BOF was 65.18% and 41.62% lower at 10 and 20 days after transplantation, respectively, than in the control condition. BOF also promoted the plant growth. The SQY 162 populations efficiently colonized the tomato rhizosphere, which directly suppressed the number of Ralstonia solanacearum in the tomato rhizosphere soil. In the presence of BOF, the activities of defense-related enzymes in tomato were lower than in the presence of the control treatment, but the expression levels of the defense-related genes of the plants in the salicylic acid and jasmonic acid pathways were enhanced. It was also found that strain SQY 162 could secrete antibiotic surfactin, but not volatile organic compounds, to suppress Ralstonia. The strain could also produce plant growth promotion compounds such as siderophores and indole-3-acetic acid. Thus, owing to its innate multiple-functional traits and its broad biocontrol activities, we found that this antagonistic strain isolated from the tobacco rhizosphere could establish itself successfully in the tomato rhizosphere to control soilborne diseases" |
| Keywords: | "Bacillus/chemistry/genetics/*metabolism *Fertilizers Solanum lycopersicum/*microbiology Pest Control, Biological/*methods Plant Diseases/microbiology/prevention & control Ralstonia solanacearum/*drug effects Rhizosphere Soil Microbiology Bacillus amyloliq;" |
| Notes: | "MedlineWu, Kai Fang, Zhiying Wang, Lili Yuan, Saifei Guo, Rong Shen, Biao Shen, Qirong eng Korea (South) 2016/10/27 J Microbiol Biotechnol. 2016 Oct 28; 26(10):1755-1764. doi: 10.4014/jmb.1604.04021" |
