Massively parallel screening of synthetic microbial communities

Microbial communities have numerous potential applications in biotechnology, agriculture, and medicine. Nevertheless, the limited accuracy with which we can predict interspecies interactions and environmental dependencies hinders efforts to rationally engineer beneficial consortia. Empirical screeni...

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Main Authors: Kehe, Jared Scott, Kulesa, Anthony Benjamin, Ortiz, Anthony, Gore, Jeff, Blainey, Paul C
Other Authors: Massachusetts Institute of Technology. Department of Biological Engineering
Format: Article
Language:English
Published: Proceedings of the National Academy of Sciences 2020
Subjects:
Online Access:https://hdl.handle.net/1721.1/124422
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author Kehe, Jared Scott
Kulesa, Anthony Benjamin
Ortiz, Anthony
Gore, Jeff
Blainey, Paul C
author2 Massachusetts Institute of Technology. Department of Biological Engineering
author_facet Massachusetts Institute of Technology. Department of Biological Engineering
Kehe, Jared Scott
Kulesa, Anthony Benjamin
Ortiz, Anthony
Gore, Jeff
Blainey, Paul C
author_sort Kehe, Jared Scott
collection MIT
description Microbial communities have numerous potential applications in biotechnology, agriculture, and medicine. Nevertheless, the limited accuracy with which we can predict interspecies interactions and environmental dependencies hinders efforts to rationally engineer beneficial consortia. Empirical screening is a complementary approach wherein synthetic communities are combinatorially constructed and assayed in high throughput. However, assembling many combinations of microbes is logistically complex and difficult to achieve on a timescale commensurate with microbial growth. Here, we introduce the kChip, a droplets-based platform that performs rapid, massively parallel, bottom-up construction and screening of synthetic microbial communities. We first show that the kChip enables phenotypic characterization of microbes across environmental conditions. Next, in a screen of ∼100,000 multispecies communities comprising up to 19 soil isolates, we identified sets that promote the growth of the model plant symbiont Herbaspirillum frisingense in a manner robust to carbon source variation and the presence of additional species. Broadly, kChip screening can identify multispecies consortia possessing any optically assayable function, including facilitation of biocontrol agents, suppression of pathogens, degradation of recalcitrant substrates, and robustness of these functions to perturbation, with many applications across basic and applied microbial ecology.
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spelling mit-1721.1/1244222022-09-26T09:23:55Z Massively parallel screening of synthetic microbial communities Kehe, Jared Scott Kulesa, Anthony Benjamin Ortiz, Anthony Gore, Jeff Blainey, Paul C Massachusetts Institute of Technology. Department of Biological Engineering Massachusetts Institute of Technology. Department of Biology Multidisciplinary Microbial communities have numerous potential applications in biotechnology, agriculture, and medicine. Nevertheless, the limited accuracy with which we can predict interspecies interactions and environmental dependencies hinders efforts to rationally engineer beneficial consortia. Empirical screening is a complementary approach wherein synthetic communities are combinatorially constructed and assayed in high throughput. However, assembling many combinations of microbes is logistically complex and difficult to achieve on a timescale commensurate with microbial growth. Here, we introduce the kChip, a droplets-based platform that performs rapid, massively parallel, bottom-up construction and screening of synthetic microbial communities. We first show that the kChip enables phenotypic characterization of microbes across environmental conditions. Next, in a screen of ∼100,000 multispecies communities comprising up to 19 soil isolates, we identified sets that promote the growth of the model plant symbiont Herbaspirillum frisingense in a manner robust to carbon source variation and the presence of additional species. Broadly, kChip screening can identify multispecies consortia possessing any optically assayable function, including facilitation of biocontrol agents, suppression of pathogens, degradation of recalcitrant substrates, and robustness of these functions to perturbation, with many applications across basic and applied microbial ecology. National Science Foundation (U.S.). Graduate Research Fellowship (Fellow ID 2016220942) National Science Foundation (U.S.). Graduate Research Fellowship (Fellow ID 2013164251) Burroughs Wellcome Fund (Career Award at the Scientific Interface Grant 1010240) Simons Foundation (Grant 542385) 2020-03-30T19:22:13Z 2020-03-30T19:22:13Z 2019-06-11 2020-02-12T19:07:51Z Article http://purl.org/eprint/type/JournalArticle 0027-8424 1091-6490 https://hdl.handle.net/1721.1/124422 Kehe, Jared et al. "Massively parallel screening of synthetic microbial communities." Proceedings of the National Academy of Sciences of the United States of America 116 (2019):12804-12809 © 2019 The Author(s) en 10.1073/pnas.1900102116 Proceedings of the National Academy of Sciences of the United States of America Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf Proceedings of the National Academy of Sciences PNAS
spellingShingle Multidisciplinary
Kehe, Jared Scott
Kulesa, Anthony Benjamin
Ortiz, Anthony
Gore, Jeff
Blainey, Paul C
Massively parallel screening of synthetic microbial communities
title Massively parallel screening of synthetic microbial communities
title_full Massively parallel screening of synthetic microbial communities
title_fullStr Massively parallel screening of synthetic microbial communities
title_full_unstemmed Massively parallel screening of synthetic microbial communities
title_short Massively parallel screening of synthetic microbial communities
title_sort massively parallel screening of synthetic microbial communities
topic Multidisciplinary
url https://hdl.handle.net/1721.1/124422
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