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ABSTRACT: Microplastics degradation metagenomics

PROVIDER: PRJNA811358 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR18177710_1.fastq.gz	Fastqsanger.gz
	SRR18177710_2.fastq.gz	Fastqsanger.gz
	SRR18177711_1.fastq.gz	Fastqsanger.gz
	SRR18177711_2.fastq.gz	Fastqsanger.gz
	SRR18177712_1.fastq.gz	Fastqsanger.gz

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Effect of the PET microplastics on pancreas - in vivo study on pig

Project description:Microplastics are a relatively newly discovered environmental hazard that can contribute to the disruption of many physiological processes in the organism. There is evidence that they affect the physiology of the pancreas, but research is still very limited. Therefore, the aim of the study was to determine the effects of PET microplastics on the global proteomic profile of the porcine pancreas using LC-MS/MS analysis. The pigs were treated with a low (0.1 g/day) or a high dose (1 g/day) of PET microplastics for 4 weeks. The analysis revealed that PET microplastics affected protein expression in a dose-dependent manner - the low dose affected the abundance of 7 proteins, while the high dose of 17.

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Project description:<p>The increasing application of biodegradable mulch films in agriculture has raised concerns regarding the potential persistence of biodegradable microplastics (BMPs) in soil and their subsequent ecological impacts. Although these materials are designed to mineralize, their actual rates of breakdown under field conditions vary widely, and the role of plant roots in modulating BMP transformation through the rhizosphere effect remains poorly understood. In particular, how the complex biochemical environment of the rhizosphere influences BMP degradation and byproduct accumulation represents a critical knowledge gap. Here we show that the soybean rhizosphere significantly enhances the degradation of 1% (w/w) large (998.7 ± 74.6 μm) poly(butylene adipate-co-terephthalate) microplastics (PBAT-MPs), whereas small (145.6 ± 3.1 μm) particles remain largely protected within soil aggregates over a 70-day growth cycle. This size-dependent effect is accompanied by preferential hydrolysis of aliphatic adipate units, leading to greater accumulation of degradation monomers in the rhizosphere than in bulk soil. We further demonstrate that PBAT degradation is associated with increased microbial biomass, altered soil carbon pools, and the enrichment of Proteobacteria, particularly Bradyrhizobium and Ramlibacter, which are linked to PBAT hydrolysis and metabolite utilization. These findings redefine the role of plant roots in regulating the fate of biodegradable microplastics in soil and highlight that biodegradable mulches cannot be assumed to degrade benignly under realistic agricultural conditions. Our work underscores the need for rhizosphere relevant criteria when assessing the environmental safety of biodegradable plastics.</p>

2026-01-07 | MTBLS12524 | MetaboLights

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