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Microplastic polymer properties as deterministic factors driving terrestrial plastisphere microbiome assembly and succession in the field

Title data

Rohrbach, Stephan ; Gkoutselis, Gerasimos ; Hink, Linda ; Weig, Alfons ; Obst, Martin ; Diekmann, Astrid ; Ho, Adrian ; Rambold, Gerhard ; Horn, Marcus A.:
Microplastic polymer properties as deterministic factors driving terrestrial plastisphere microbiome assembly and succession in the field.
In: Environmental Microbiology. (12 October 2022) .
ISSN 1462-2920
DOI: https://doi.org/10.1111/1462-2920.16234

Project information

Project title:
Project's official titleProject's id
SFB 1357 Mikroplastik391977956

Project financing: Deutsche Forschungsgemeinschaft

Abstract in another language

Environmental microplastic (MP) is ubiquitous in aquatic and terrestrial ecosystems providing artificial habitats for microbes. Mechanisms of MP colonization, MP polymer impacts, and effects on soil microbiomes are largely unknown in terrestrial systems. Therefore, we experimentally tested the hypothesis that MP polymer type is an important deterministic factor affecting MP community assembly by incubating common MP polymer types in situ in landfill soil for 14 months. 16S rRNA gene amplicon sequencing indicated that MP polymers have specific impacts on plastisphere microbiomes, which are subsets of the soil microbiome. Chloroflexota, Gammaproteobacteria, certain Nitrososphaerota, and Nanoarchaeota explained differences among MP polymers and time points. Plastisphere microbial community composition derived from different MP diverged over time and was enriched in potential pathogens. PICRUSt predictions of pathway abundances and quantitative PCR of functional marker genes indicated that MP polymers exerted an ambivalent effect on genetic potentials of biogeochemical cycles. Overall, the data indicates that (i) polymer type as deterministic factor rather than stochastic factors drives plastisphere community assembly, (ii) MP impacts greenhouse gas metabolism, xenobiotic degradation and pathogen distribution, and (iii) MP serves as an ideal model system for studying fundamental questions in microbial ecology such as community assembly mechanisms in terrestrial environments.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Professor Mycology > Professor Mycology - Univ.-Prof. Dr. Gerhard Rambold
Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER
Research Institutions > Collaborative Research Centers, Research Unit > SFB 1357 - MIKROPLASTIK
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 570 Life sciences, biology
Date Deposited: 20 Oct 2022 08:01
Last Modified: 20 Oct 2022 08:01
URI: https://eref.uni-bayreuth.de/id/eprint/72478