Component specific responses of the microbiomes to common chemical stressors in the human food chain

Description
Wasimuddin is the first author of this study.
DOI
Publisher DOI
PubMed ID
40296074
Abstract
Along a food chain, microbiomes occur in each component and often contribute to the functioning or the health of their host or environment. 'One Health' emphasizes the connectivity of each component's health. Chemical stress typically causes dysbiotic microbiomes, but it remains unclear whether chemical stressors consistently affect the microbiomes of food chain components. Here, we challenged food chain components, including water, sediments, soil, plants, and animals, with three chemical stresses consisting of arsenic (toxic trace element), benzoxazinoids (bioactive plant metabolites), and terbuthylazine (herbicide). We analysed 1064 microbiomes to assess their commonalities and differences in their stress responses. We found that chemical stressors overall decreased microbiome diversity in soil, but not in the other microbiomes. In response to stress, all food chain communities strongly shifted in their composition, generally becoming compositionally more similar to each other. In addition, we observed stochastic effects in host-associated communities (plant, animal). Dysbiotic microbiomes were characterized by different sets of bacteria, which responded specifically to the three chemical stressors. Microbial co-occurrence patterns significantly shifted with either decreased (water, sediment, plant, animal) or increased (soil) network sparsity and numbers of keystone taxa following stress treatments. These results suggest major re-distribution of specific taxa in the overall stress- and component-specific responses of microbiomes with the community stability of plant and animal microbiomes being the most affected by chemical stresses.
Date Issued
2025-04-28
Publication Type
Article
Subjects
Chemical stressors
•
Diversity
•
Dysbiosis
•
Microbiome
•
One health.
Language(s)
en
Author(s)
Wasimuddin
Thoenen, Lisa
Caggìa, Veronica
Coll-Crespi, Miquel
Notter, Matheus
Mukherjee, Mohana
Spielvogel, Sandra
Additional Credits
Journal
Environmental Microbiome
Publisher
BioMed Central (United Kingdom)
ISSN
2524-6372
Access(Rights)
open.access
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