Integrative proteome and metabolome unveil the central role of IAA alteration in axillary bud development following topping in tobacco.

ABSTRACT: Axillary bud is an important aspect of plant morphology, contributing to the final tobacco yield. However, the mechanisms of axillary bud development in tobacco remain largely unknown. To investigate this aspect of tobacco biology, the metabolome and proteome of the axillary buds before and after topping were compared. A total of 569 metabolites were differentially abundant before and 1, 3, and 5 days after topping. KEGG analyses further revealed that the axillary bud was characterized by a striking enrichment of metabolites involved in flavonoid metabolism, suggesting a strong flavonoid biosynthesis activity in the tobacco axillary bud after topping. Additionally, 9035 differentially expressed proteins (DEPs) were identified before and 1, 3, and 5 days after topping. Subsequent GO and KEG

SUBMITTER: Zou M 

PROVIDER: S-EPMC11222511 | biostudies-literature | 2024 Jul

REPOSITORIES: biostudies-literature