Hypoxia induces phenotypic and metabolic shifts in endophytic Flavobacterium sp. 98.

ABSTRACT: Oxygen plays a crucial role in shaping microbial physiology, functions, and behavior. Endophytic bacteria, residing within plant tissues, inhabit microenvironments where oxygen availability can be limited. However, the magnitude of hypoxic conditions in the endosphere and how these affect functional microbial traits are largely unknown. Here, we showed with a microsensor that oxygen levels in roots of sugar beet seedlings drop drastically to variable, low oxygen levels when going from epidermal to endodermal root tissue into the vasculature. Subsequently, we investigated phenotypic and metabolic responses of endophytic Flavobacterium sp. 98 at oxygen levels of 100 ppm. Under these low oxygen conditions, Flavobacterium sp. 98 showed reduced growth, enhanced motility, and an altered extracel

SUBMITTER: Pan X 

PROVIDER: S-EPMC12747077 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature