Back to the Future: Decomposability of a Biobased and Biodegradable Plastic in Field Soil Environments and Its Microbiome under Ambient and Future Climates
| Autor: | Daniel Heinz, Witoon Purahong, Joerg Kressler, Katalee Jariyavidyanont, Chanita Sungkapreecha, Chakriya Sansupa, Razan Alaneed, Benjawan Tanunchai, Anna Heintz-Buschart, Martin Schädler, Andreas Geissler, Sara Fareed Mohamed Wahdan, Dolaya Sadubsarn, François Buscot |
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| Rok vydání: | 2021 |
| Předmět: |
biology
Microorganism Microbiota Chemical process of decomposition General Chemistry Biodegradable Plastics biology.organism_classification Decomposition Soil Biodegradation Environmental Ascomycota Field soil Environmental chemistry Soil water Environmental Chemistry Environmental science Microbiome Biodegradable plastic Soil Microbiology Archaea |
| Zdroj: | Environmental sciencetechnology. 55(18) |
| ISSN: | 1520-5851 |
| Popis: | Decomposition by microorganisms of plastics in soils is almost unexplored despite the fact that the majority of plastics released into the environment end up in soils. Here, we investigate the decomposition process and microbiome of one of the most promising biobased and biodegradable plastics, poly(butylene succinate-co-adipate) (PBSA), under field soil conditions under both ambient and future predicted climates (for the time between 2070 and 2100). We show that the gravimetric and molar mass of PBSA is already largely reduced (28-33%) after 328 days under both climates. We provide novel information on the PBSA microbiome encompassing the three domains of life: Archaea, Bacteria, and Eukarya (fungi). We show that PBSA begins to decompose after the increase in relative abundances of aquatic fungi (Tetracladium spp.) and nitrogen-fixing bacteria. The PBSA microbiome is distinct from that of surrounding soils, suggesting that PBSA serves as a new ecological habitat. We conclude that the microbial decomposition process of PBSA in soil is more complex than previously thought by involving interkingdom relationships, especially between bacteria and fungi. |
| Databáze: | OpenAIRE |
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