What question did this study set out to answer?

This research aims to understand how degQ influences fengycin production and disease resistance in Bacillus velezensis XY40-1.

April 10, 2026

Construction of Engineered Bacillus velezensis XY40-1 and the role of degQ in Enhancing Fengycin Synthesis and Pepper Disease Resistance

This research aims to understand how degQ influences fengycin production and disease resistance in Bacillus velezensis XY40-1.
Construction of Bacillus velezensis strain XY40-1
Assessment of fengycin synthesis levels
Evaluation of biofilm formation capabilities
Analysis of biocontrol activity against pathogens
DegQ significantly enhances fengycin synthesis in XY40-1
Improved biofilm formation was observed in the presence of degQ
Increased biocontrol activity against diseases was reported for XY40-1 with active degQ

The findings demonstrate that degQ plays a central role in regulating fengycin synthesis, biofilm formation, and biocontrol activity in XY40-1.

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Xing He

Hui Wang

Y. F. Peng

Journal of Applied Microbiology

Hunan University

Hunan Agricultural University

Changsha University

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