Bacteria dynamics and its correlation with chemical composition changes in tobacco leaves during flue curing.

ABSTRACT: Microorganisms play a vital role in tobacco growth and processing, yet their correlation with chemical composition during flue curing is understudied. This study examines the dynamic changes in chemical components and bacterial communities during flue curing of lower, middle, and upper leaves. Several key constituents showed distinct changes across leaf positions and curing stages. Xanthophyll decreased during the yellowing stage, while neutral fragrance substances increased after yellowing, especially in middle leaves. Sucrose and proline showed a predominant increasing trend throughout the entire curing process. Nicotine in lower leaves was lowest, and significantly increased by flue curing. Bacterial community analysis revealed higher alpha diversity in lower leaves, dominated by Proteo

SUBMITTER: Sha Y 

PROVIDER: S-EPMC12460388 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature