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Biocontrol of Alternaria alternata and Fusarium oxysporum by Trichoderma asperelloides and Bacillus paralicheniformis in tomato plants
- Source :
- Antonie van Leeuwenhoek. 113(9)
- Publication Year :
- 2020
-
Abstract
- The objective of this work was to evaluate the effectiveness of the putative biocontrol agents (PBA) Bacillus paralicheniformis and Trichoderma asperelloides in vitro and in vivo to control two of the most important tomato plant diseases: vascular wilt (Fusarium oxysporum) and early blight (Alternaria alternata). The assessment of the in vitro interactions between the PBA and the phytopathogenic fungi was performed by dual confrontation assays. The biocontrol effectiveness of the individual and combined PBA treatments towards individual phytopathogen inoculations was evaluated in tomato plants. T. asperelloides was able to exert an outstanding mycoparasitic effect on both phytopathogenic fungi in the in vitro tests by hyphal strangulation and penetration. In addition, the individual PBA treatments were effective in the biocontrol of A. alternata and F. oxysporum in tomato plants reducing the plant disease severity in more than 53.8 and 66.7% for each of the pathogens, respectively. On the other hand, the combined use of the tested strains showed similar effectiveness in the biocontrol of A. alternata, but no synergism was observed. In addition, it was concluded that B. paralicheniformis protected the plants from the attack of A. alternata through the induction of the systemic resistance of the plant. This study demonstrated the effectiveness of the individual and combined use of the strains tested for the biocontrol of A. alternata and F. oxysporum in tomato plants.
- Subjects :
- 0106 biological sciences
Hypha
Biological pest control
Bacillus
01 natural sciences
Microbiology
Alternaria alternata
Fusarium
Solanum lycopersicum
Fusarium oxysporum
Blight
Bacillus paralicheniformis
Molecular Biology
Plant Diseases
biology
Inoculation
fungi
food and beverages
Alternaria
General Medicine
biology.organism_classification
Plant disease
010602 entomology
Horticulture
Biological Control Agents
Hypocreales
Microbial Interactions
010606 plant biology & botany
Subjects
Details
- ISSN :
- 15729699
- Volume :
- 113
- Issue :
- 9
- Database :
- OpenAIRE
- Journal :
- Antonie van Leeuwenhoek
- Accession number :
- edsair.doi.dedup.....8f893714e11bcd460d21901de550e8dc