On the Verge of a Catastrophic Collapse? The Need for a Multi-Ecosystem Approach to Microbiome Studies

While the COVID-19 pandemic has led to increased focus on pathogenic microbes that cross the animal-human species barrier, calls to include non-pathogenic interactions in our perspective on public health are gaining traction in the academic community. Over generations, the diversity of the human gut...

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Main Authors: Olaf F. A. Larsen, Linda H. M. van de Burgwal
Format: Article
Language:English
Published: Frontiers Media S.A. 2021-12-01
Series:Frontiers in Microbiology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fmicb.2021.784797/full
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author Olaf F. A. Larsen
Linda H. M. van de Burgwal
author_facet Olaf F. A. Larsen
Linda H. M. van de Burgwal
author_sort Olaf F. A. Larsen
collection DOAJ
description While the COVID-19 pandemic has led to increased focus on pathogenic microbes that cross the animal-human species barrier, calls to include non-pathogenic interactions in our perspective on public health are gaining traction in the academic community. Over generations, the diversity of the human gut microbiota is being challenged by external perturbations and reduced acquisition of symbiotic species throughout life. When such reduced diversity concerns not only the microbial species, but also the higher taxonomic levels and even the guild level, adequate compensation for possible losses may be lacking. Shifts from a high-abundance to a low-abundance state, known as a tipping point, may result in simultaneous shifts in covarying taxa and ultimately to a catastrophic collapse in which the ecosystem abruptly and possibly irreversibly shifts to an alternative state. Here, we propose that co-occurrence patterns within and between microbial communities across human, animal, soil, water, and other environmental domains should be studied in light of such critical transitions. Improved mechanistic understanding of factors that shape structure and function is needed to understand whether interventions can sustainably remodel disease-prone microbiota compositions to robust and resilient healthy microbiota. Prerequisites for a rational approach are a better understanding of the microbial interaction network, both within and inter-domain, as well as the identification of early warning signs for a catastrophic collapse, warranting a timely response for intervention. We should not forget that mutualism and pathogenicity are two sides of the same coin. Building upon the planetary health concept, we argue that microbiome research should include system level approaches to conserve ecosystem resilience.HIGHLIGHTS1. Non-pathogenic interactions between ecosystems play a key role in maintaining health.2. The human gut microbiome may be on the verge of a catastrophic collapse.3. Research should identify keystone taxa and guilds that interconnect different domains.4. We should not forget that mutualism and pathogenicity are two sides of the same coin.
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spelling doaj.art-5b4d295d312349e4babc395a683029542022-12-21T23:38:38ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2021-12-011210.3389/fmicb.2021.784797784797On the Verge of a Catastrophic Collapse? The Need for a Multi-Ecosystem Approach to Microbiome StudiesOlaf F. A. LarsenLinda H. M. van de BurgwalWhile the COVID-19 pandemic has led to increased focus on pathogenic microbes that cross the animal-human species barrier, calls to include non-pathogenic interactions in our perspective on public health are gaining traction in the academic community. Over generations, the diversity of the human gut microbiota is being challenged by external perturbations and reduced acquisition of symbiotic species throughout life. When such reduced diversity concerns not only the microbial species, but also the higher taxonomic levels and even the guild level, adequate compensation for possible losses may be lacking. Shifts from a high-abundance to a low-abundance state, known as a tipping point, may result in simultaneous shifts in covarying taxa and ultimately to a catastrophic collapse in which the ecosystem abruptly and possibly irreversibly shifts to an alternative state. Here, we propose that co-occurrence patterns within and between microbial communities across human, animal, soil, water, and other environmental domains should be studied in light of such critical transitions. Improved mechanistic understanding of factors that shape structure and function is needed to understand whether interventions can sustainably remodel disease-prone microbiota compositions to robust and resilient healthy microbiota. Prerequisites for a rational approach are a better understanding of the microbial interaction network, both within and inter-domain, as well as the identification of early warning signs for a catastrophic collapse, warranting a timely response for intervention. We should not forget that mutualism and pathogenicity are two sides of the same coin. Building upon the planetary health concept, we argue that microbiome research should include system level approaches to conserve ecosystem resilience.HIGHLIGHTS1. Non-pathogenic interactions between ecosystems play a key role in maintaining health.2. The human gut microbiome may be on the verge of a catastrophic collapse.3. Research should identify keystone taxa and guilds that interconnect different domains.4. We should not forget that mutualism and pathogenicity are two sides of the same coin.https://www.frontiersin.org/articles/10.3389/fmicb.2021.784797/fulltransitionscatastrophic collapseplanetary healthkeystone taxamicrobial guilds
spellingShingle Olaf F. A. Larsen
Linda H. M. van de Burgwal
On the Verge of a Catastrophic Collapse? The Need for a Multi-Ecosystem Approach to Microbiome Studies
Frontiers in Microbiology
transitions
catastrophic collapse
planetary health
keystone taxa
microbial guilds
title On the Verge of a Catastrophic Collapse? The Need for a Multi-Ecosystem Approach to Microbiome Studies
title_full On the Verge of a Catastrophic Collapse? The Need for a Multi-Ecosystem Approach to Microbiome Studies
title_fullStr On the Verge of a Catastrophic Collapse? The Need for a Multi-Ecosystem Approach to Microbiome Studies
title_full_unstemmed On the Verge of a Catastrophic Collapse? The Need for a Multi-Ecosystem Approach to Microbiome Studies
title_short On the Verge of a Catastrophic Collapse? The Need for a Multi-Ecosystem Approach to Microbiome Studies
title_sort on the verge of a catastrophic collapse the need for a multi ecosystem approach to microbiome studies
topic transitions
catastrophic collapse
planetary health
keystone taxa
microbial guilds
url https://www.frontiersin.org/articles/10.3389/fmicb.2021.784797/full
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