We performed the sequencing and annotation of the complete genome of the epiphytic bacterium Achromobacter denitrificans strain EPI24, isolated from the green macroalga of the Ulva lactuca species. The functional annotation of the A. denitrificans strain EPI24 genome confirmed the presence of genes encoding for laccases, demonstrating the potential of epiphytic bacteria from U. lactuca in the laccase productio. Genome sequencing of Achromobacter denitrificans EPI24

Marine macroalgae are being recognized as reservoirs of biologically active compounds, as their surfaces are susceptible to the colonization of microorganisms which can produce enzymes with a wide range of molecular architectures. Among these bacteria, Achromobacter is responsible for the biosynthesis of laccases. In this study, we performed the sequencing and annotation of the complete genome of the epiphytic bacterium Achromobacter denitrificans strain EPI24, isolated from thegreen macroalga of the Ulva lactuca species; this strain showed laccase activity previously assessedon plate assays. The genome of A. denitrificans strain EPI24 is ~6.95 Mb long, has a GC content of 67.33 %, and contains a total of 6,603 protein-coding genes. The functional annotation of the A.denitrificans strain EPI24 genome confirmed the presence of genes encoding for laccases,demonstrating the potential of epiphytic bacteria from U. lactuca in the laccase production, which could have functional properties of interest in processes such as the biodegradation of phenolic compounds under more versatile and efficient conditions, compared to laccases produced by terrestrial fungi and bacteria.