Whole-genome sequencing and genome-scale metabolic modeling of Chromohalobacter canadensis 85B to explore its salt tolerance and biotechnological use

Blaise Manga Enuh, Belma Nural Yaman, Chaimaa Tarzi, Pınar Aytar Çelik, Mehmet Burçin Mutlu, Claudio Angione

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Abstract

Salt tolerant organisms are increasingly being used for the industrial production of high-value biomolecules due to their better adaptability compared to mesophiles. Chromohalobacter canadensis is one of the early halophiles to show promising biotechnology potential, which has not been explored to date. Advanced high throughput technologies such as whole-genome sequencing allow in-depth insight into the potential of organisms while at the frontiers of systems biology. At the same time, genome-scale metabolic models (GEMs) enable phenotype predictions through a mechanistic representation of metabolism. Here, we sequence and analyze the genome of C. canadensis 85B, and we use it to reconstruct a GEM. We then analyze the GEM using flux balance analysis and validate it against literature data on C. canadensis. We show that C. canadensis 85B is a metabolically versatile organism with many features for stress and osmotic adaptation. Pathways to produce ectoine and polyhydroxybutyrates were also predicted. The GEM reveals the ability to grow on several carbon sources in a minimal medium and reproduce osmoadaptation phenotypes. Overall, this study reveals insights from the genome of C. canadensis 85B, providing genomic data and a draft GEM that will serve as the first steps towards a better understanding of its metabolism, for novel applications in industrial biotechnology.

Original languageEnglish
Article numbere1328
JournalMicrobiologyOpen
Volume11
Issue number5
DOIs
Publication statusPublished - 26 Oct 2022

Bibliographical note

Funding Information:
Part of this study was funded by Eskisehir Osmangazi University scientific research committee project ID: 202115D01. CA would like to acknowledge the support from UKRI Research England's THYME project, the Children's Liver Disease Foundation (grant SG/2019/06/03), and UKRI EPSRC through a Network Development Grant from The Alan Turing Institute (grant number TNDC2‐100022).

Publisher Copyright:
© 2022 The Authors. MicrobiologyOpen published by John Wiley & Sons Ltd.

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