Screening, identification, and mechanism analysis of starch-degrading bacteria during curing process in tobacco leaf.

ABSTRACT: Tobacco, a vital economic crop, had its quality post-curing significantly influenced by starch content. Nonetheless, the existing process parameters during curing were inadequate to satisfy the starch degradation requirements. Microorganisms exhibit inherent advantages in starch degradation, offering significant potential in the tobacco curing process. Our study concentrated on the microbial populations on the surface of tobacco leaves and in the rhizosphere soil. A strain capable of starch degradation, designated as BS3, was successfully isolated and identified as Bacillus subtilis by phylogenetic tree analysis based on 16SrDNA sequence. The application of BS3 on tobacco significantly enhanced enzyme activity and accelerated starch degradation during the curing process. Furthermore

SUBMITTER: Zhang Y 

PROVIDER: S-EPMC10985783 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature