6psm

Publication Abstract from PubMed

Pseudoalteromonas is a globally distributed marine-associated genus that can be found in a broad range of aquatic environments, including in association with macroalgal surfaces where they may take advantage of these rich sources of polysaccharides. The metabolic systems that confer the ability to metabolize this abundant form of photosynthetically fixed carbon, however, are not yet fully understood. Through genomics, transcriptomics, microbiology, and specific structure-function studies of pathway components we address the capacity of newly isolated marine pseudoalteromonads to metabolize the red algal galactan carrageenan. The results reveal that the kappa/iota-carrageenan specific polysaccharide utilization locus (CarPUL) enables isolates possessing this locus the ability to grow on this substrate. Biochemical and structural analysis of the enzymatic components of the CarPUL promoted the development of a detailed model of the kappa/iota-carrageenan metabolic pathway deployed by pseudoalteromonads, thus furthering our understanding of how these microbes have adapted to a unique environmental niche.

Insights into the kappa/iota-carrageenan metabolism pathway of some marine Pseudoalteromonas species.,Hettle AG, Hobbs JK, Pluvinage B, Vickers C, Abe KT, Salama-Alber O, McGuire BE, Hehemann JH, Hui JPM, Berrue F, Banskota A, Zhang J, Bottos EM, Van Hamme J, Boraston AB Commun Biol. 2019 Dec 19;2:474. doi: 10.1038/s42003-019-0721-y. eCollection 2019. PMID:31886414^[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.