A gap-filling algorithm for prediction of metabolic interactions in microbial communities.

The study of microbial communities and their interactions has attracted the interest of the scientific community, because of their potential for applications in biotechnology, ecology and medicine. The complexity of interspecies interactions, which are key for the macroscopic behavior of microbial c...

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Autores principales: Dafni Giannari, Cleo Hanchen Ho, Radhakrishnan Mahadevan
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Publicado: Public Library of Science (PLoS) 2021
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Acceso en línea:https://doaj.org/article/852e18f9d68b484382082892c6d38c9a
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spelling oai:doaj.org-article:852e18f9d68b484382082892c6d38c9a2021-12-02T19:57:40ZA gap-filling algorithm for prediction of metabolic interactions in microbial communities.1553-734X1553-735810.1371/journal.pcbi.1009060https://doaj.org/article/852e18f9d68b484382082892c6d38c9a2021-11-01T00:00:00Zhttps://doi.org/10.1371/journal.pcbi.1009060https://doaj.org/toc/1553-734Xhttps://doaj.org/toc/1553-7358The study of microbial communities and their interactions has attracted the interest of the scientific community, because of their potential for applications in biotechnology, ecology and medicine. The complexity of interspecies interactions, which are key for the macroscopic behavior of microbial communities, cannot be studied easily experimentally. For this reason, the modeling of microbial communities has begun to leverage the knowledge of established constraint-based methods, which have long been used for studying and analyzing the microbial metabolism of individual species based on genome-scale metabolic reconstructions of microorganisms. A main problem of genome-scale metabolic reconstructions is that they usually contain metabolic gaps due to genome misannotations and unknown enzyme functions. This problem is traditionally solved by using gap-filling algorithms that add biochemical reactions from external databases to the metabolic reconstruction, in order to restore model growth. However, gap-filling algorithms could evolve by taking into account metabolic interactions among species that coexist in microbial communities. In this work, a gap-filling method that resolves metabolic gaps at the community level was developed. The efficacy of the algorithm was tested by analyzing its ability to resolve metabolic gaps on a synthetic community of auxotrophic Escherichia coli strains. Subsequently, the algorithm was applied to resolve metabolic gaps and predict metabolic interactions in a community of Bifidobacterium adolescentis and Faecalibacterium prausnitzii, two species present in the human gut microbiota, and in an experimentally studied community of Dehalobacter and Bacteroidales species of the ACT-3 community. The community gap-filling method can facilitate the improvement of metabolic models and the identification of metabolic interactions that are difficult to identify experimentally in microbial communities.Dafni GiannariCleo Hanchen HoRadhakrishnan MahadevanPublic Library of Science (PLoS)articleBiology (General)QH301-705.5ENPLoS Computational Biology, Vol 17, Iss 11, p e1009060 (2021)
institution DOAJ
collection DOAJ
language EN
topic Biology (General)
QH301-705.5
spellingShingle Biology (General)
QH301-705.5
Dafni Giannari
Cleo Hanchen Ho
Radhakrishnan Mahadevan
A gap-filling algorithm for prediction of metabolic interactions in microbial communities.
description The study of microbial communities and their interactions has attracted the interest of the scientific community, because of their potential for applications in biotechnology, ecology and medicine. The complexity of interspecies interactions, which are key for the macroscopic behavior of microbial communities, cannot be studied easily experimentally. For this reason, the modeling of microbial communities has begun to leverage the knowledge of established constraint-based methods, which have long been used for studying and analyzing the microbial metabolism of individual species based on genome-scale metabolic reconstructions of microorganisms. A main problem of genome-scale metabolic reconstructions is that they usually contain metabolic gaps due to genome misannotations and unknown enzyme functions. This problem is traditionally solved by using gap-filling algorithms that add biochemical reactions from external databases to the metabolic reconstruction, in order to restore model growth. However, gap-filling algorithms could evolve by taking into account metabolic interactions among species that coexist in microbial communities. In this work, a gap-filling method that resolves metabolic gaps at the community level was developed. The efficacy of the algorithm was tested by analyzing its ability to resolve metabolic gaps on a synthetic community of auxotrophic Escherichia coli strains. Subsequently, the algorithm was applied to resolve metabolic gaps and predict metabolic interactions in a community of Bifidobacterium adolescentis and Faecalibacterium prausnitzii, two species present in the human gut microbiota, and in an experimentally studied community of Dehalobacter and Bacteroidales species of the ACT-3 community. The community gap-filling method can facilitate the improvement of metabolic models and the identification of metabolic interactions that are difficult to identify experimentally in microbial communities.
format article
author Dafni Giannari
Cleo Hanchen Ho
Radhakrishnan Mahadevan
author_facet Dafni Giannari
Cleo Hanchen Ho
Radhakrishnan Mahadevan
author_sort Dafni Giannari
title A gap-filling algorithm for prediction of metabolic interactions in microbial communities.
title_short A gap-filling algorithm for prediction of metabolic interactions in microbial communities.
title_full A gap-filling algorithm for prediction of metabolic interactions in microbial communities.
title_fullStr A gap-filling algorithm for prediction of metabolic interactions in microbial communities.
title_full_unstemmed A gap-filling algorithm for prediction of metabolic interactions in microbial communities.
title_sort gap-filling algorithm for prediction of metabolic interactions in microbial communities.
publisher Public Library of Science (PLoS)
publishDate 2021
url https://doaj.org/article/852e18f9d68b484382082892c6d38c9a
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