Potential of Bacillus amyloliquefaciens for biocontrol of bacterial canker of tomato incited by Clavibacter michiganensis ssp. michiganensis
| Autor: | S. Gautam, C.K. Shirkot, A. Chauhan, R. Sehgal, Rashmi Sharma |
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| Rok vydání: | 2019 |
| Předmět: |
DNA
Bacterial 0301 basic medicine Bacillus amyloliquefaciens 030106 microbiology Biological pest control Rhizobacteria DNA Ribosomal Microbiology 03 medical and health sciences Solanum lycopersicum RNA Ribosomal 16S Antibiosis Cluster Analysis Phylogeny Plant Diseases Rhizosphere Indoleacetic Acids biology Strain (chemistry) Inoculation Phosphorus Sequence Analysis DNA biology.organism_classification 16S ribosomal RNA Actinobacteria Horticulture 030104 developmental biology Infectious Diseases Clavibacter michiganensis |
| Zdroj: | Microbial Pathogenesis. 130:196-203 |
| ISSN: | 0882-4010 |
| DOI: | 10.1016/j.micpath.2019.03.006 |
| Popis: | A total of 150 rhizobacteria and endorhizobacteria previously isolated from three different horticultural crops; strawberry, apple and apricot were screened for antagonistic activitiy against Clavibacter michiganensis ssp. michiganensis. Among them strain S1, exhibiting significantly higher antagonistic and plant growth promoting ability was characterized as Bacillus amyloliquefaciens based on morphological, biochemical and partial gene sequence analysis of 16S rRNA. B. amyloliquefaciens strain S1 showed maximum growth inhibition of C. michiganensis (12 mm). Moreover, B. amyloliquefaciens strain S1 exhibit significant phosphorus solubilization (94.16 %SEl) and indole acetic acid (27 μg ml−1) production under in vitro conditions. Antagonistic activity of Bacillus amyloliquefaciens strain S1 was compared with other four strains KU2S1, R2S(1), RG1(3) and AG1(7) against bacterial canker of tomato under net house conditions. Minimum bacterial canker disease incidence (30.0%) was recorded in B. amyloliquefaciens S1 followed by RG1(3) after 30 days of inoculation. The bio-control efficacy was higher in B. amyloliquefaciens S1 treated plants, followed by RG1(3). |
| Databáze: | OpenAIRE |
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