Key Takeaways
- Abbas et al. (2024) conducted a study exploring the use of certain bacterial strains to combat Rhizoctonia root-rot in tomatoes.
- Bacillus velezensis, Bacillus megaterium, and Herpaspirillum huttiense, isolated from strawberry plants, effectively promoted growth and fought Rhizoctonia root rot.
- These bacteria showed potent antifungal activity against R. solani, both in vitro and in vivo.
- The bacterial consortium significantly increased protection against Rhizoctonia infection, with improvements in soluble proteins and carbohydrates in treated plants.
- The study suggests the potential commercial use of these bacterial strains as both a treatment for root-rot disease and a plant growth inducer.
Groundbreaking Study Offers Solution to Rhizoctonia Root-Rot in Tomatoes
Introduction to the Research
In a landmark study by Abbas et al. in 2024, innovative methods to tackle Rhizoctonia root-rot disease in tomatoes have been explored. This disease causes significant economic losses in various crops worldwide, and the study focuses on using specific bacterial strains as a defense mechanism.
Methodology and Findings
The research team isolated Bacillus velezensis, Bacillus megaterium, and Herpaspirillum huttiense from strawberry plants (Fragaria chiloensis var. ananassa). These strains were effective as plant growth promoters against the Rhizoctonia root-rot disease in tomatoes. The bacteria demonstrated potent antifungal activity against R. solani, both in laboratory conditions and in real-world scenarios.
In addition to their antifungal properties, these endophytic bacteria could produce Indole acetic acid, Gibberellic acid GA, and siderophore and solubilize phosphate in the soil. This multifaceted approach combats the disease and promotes healthier plant growth.
Impact of Bacterial Consortium
Combining these bacterial strains significantly increased protection against Rhizoctonia infection, with Bacillus velezensis leading the efficacy. There was also a notable increase in soluble proteins and carbohydrates in plants treated with this bacterial consortium, compared to untreated infected plants.
Enhancements in Plant Health
The application of these endophytic bacteria, either individually or in combination, resulted in lower levels of malondialdehyde (MDA) and hydrogen peroxide (H2O2) in both infected and uninfected plants. This indicates an improvement in the plants’ antioxidant enzyme activities, contributing to overall plant health.
Potential Commercial Application
The study suggests that the commercial use of a mixture of these targeted bacterial endophyte strains could be highly effective. They could act as a therapeutic agent against Rhizoctonia root-rot disease and have the potential to induce plant growth, offering a dual benefit.
Read the rest here.
