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Medientyp:
E-Artikel
Titel:
Links among Microbial Communities, Soil Properties and Functions
:
Are Fungi the Sole Players in Decomposition of Bio-Based and Biodegradable Plastic?
Beschreibung:
The incomplete degradation of bio-based and biodegradable plastics (BBPs) in soils causesmultiple threats to soil quality, human health, and food security. Plastic residuals can interact withsoil microbial communities. We aimed to link the structure and enzyme-mediated functional traits ofa microbial community composition that were present during poly (butylene succinate-co-butyleneadipate (PBSA) decomposition in soil with (PSN) and without (PS) the addition of nitrogen fertilizer((NH4)2SO4). We identified bacterial (Achromobacter, Luteimonas, Rhodanobacter, and Lysobacter) andfungal (Fusarium, Chaetomium, Clonostachys, Fusicolla, and Acremonium) taxa that were linked tothe activities of ß-glucosidase, chitinase, phosphatase, and lipase in plastic-amended soils. Fungalbiomass increased by 1.7 and 4 times in PS and PSN treatment, respectively, as compared to nonplastic amended soil. PBSA significantly changed the relationships between soil properties (C: Nratio, TN, and pH) and microbial community structure; however, the relationships between fungalbiomass and soil enzyme activities remained constant. PBSA significantly altered the relationshipbetween fungal biomass and acid phosphatase. We demonstrated that although the soil functionsrelated to nutrient cycling were not negatively affected in PSN treatment, potential negative effectsare reasoned by the enrichment of plant pathogens. We concluded that in comparison to fungi, thebacteria demonstrated a broader functional spectrum in the BBP degradation process