Halomonas sp. MC140, a polyhydroxyalkanoate (PHA) producer isolated from the Arctic environment.

ABSTRACT: Polyhydroxyalkanoates (PHA) are biobased and biodegradable polyesters with potential to replace petroleum-based plastics or for use as feed in aquaculture. In this study, Halomonas sp. MC140 was isolated from the Arctic littoral environment in Norway and characterized in terms of PHA production. Phylogenetic analysis of the draft genome sequence placed the strain as closely related to Halomonas profundi MT13. A genome-based model of PHA biosynthesis pathways was constructed, and shake-flask experiments identified the highest PHA production in the form of polyhydroxybutyrate (PHB) with acetate (35 ± 4.8%) or glucose (28 ± 7.9%) supplementation, as verified by gas chromatography-flame ionization detector (GC-FID) analysis, while the addition of propionate produced PHB-co-valerate (PHBV) co-p

SUBMITTER: Christensen M 

PROVIDER: S-EPMC12229310 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature