Publications by authors named "Yongquan Ta"
Evaluation of F9 for Cucumber Growth Promotion and Suppression of Disease.
Microorganisms
September 2024
Article Synopsis
- Cucumber wilt, caused by a soilborne pathogen, leads to major crop losses, prompting this study to test a beneficial bacterial strain, F9, for biocontrol and growth enhancement.
- Laboratory tests showed F9 had significant antifungal effects against various plant pathogens and promoted cucumber seedling growth effectively.
- Field trials corroborated F9's ability to reduce cucumber wilt symptoms, with notable increases in plant height and weight, alongside improved enzyme activities, demonstrating its potential as a natural alternative for crop protection.
Xenocoumacin 1 (Xcn 1), antibiotic discovered from secondary metabolites of Xenorhabdus nematophila, had the potential to develop into a new pesticide due to its excellent activity against bacteria, oomycetes and fungi. However, the current low yield of Xcn1 limits its development and utilization. To improve the yield of Xcn1, response surface methodology was used to determine the optimal composition of fermentation medium and one factor at a time approach was utilized to optimize the fermentation process.
View Article and Find Full Text PDFArticle Synopsis
- - The study identifies a new actinomycete strain (135) from the Qinghai-Tibet Plateau in China that has strong antimicrobial properties, particularly against various fungi and pests affecting crops like rape, wheat, and pepper.
- - Genetic analysis, including 16S rRNA sequencing and phylogenetic studies, shows that strain 135 is closely related to other strains in its genus but does not meet the species definition criteria based on genetic similarity measurements.
- - Genome mining revealed a biosynthetic gene cluster associated with the production of antibiotics in strain 135, shedding light on the potential mechanisms for its antifungal activity.