Rhizosphere microbiome metagenomics in PGPR-mediated alleviation of combined stress from polypropylene microplastics and Cd in hybrid Pennisetum DOI Creative Commons
Siyu Zhao,

Yue-Liang Meng,

Zihan Yang

et al.

Frontiers in Microbiology, Journal Year: 2025, Volume and Issue: 16

Published: Feb. 17, 2025

The simultaneous presence of microplastics (MPs) and heavy metals in soil may result heightened toxicity, causing more significant adverse effects on plant growth. Plant growth-promoting rhizobacteria (PGPR) have demonstrated capacities alleviating the toxic stress caused by combined pollution other contaminants. However, research impacts processes PGPR induced from MPs is still insufficient. This study involved a pot experiment to evaluate ability mitigate polypropylene microplastic (PP MPs) particles different sizes (6.5 μm 830 μm) metal cadmium (Cd) bioenergy hybrid Pennisetum. Moreover, metagenomic analysis was used examine rhizospheric microbial community function. cocontamination PP Cd affected growth Pennisetum differently depending size particles, with aboveground underground lengths 6.5 + experimental group being smaller than those group. PGPRs ( Bacillus sp. Y-35, Y-62, Y-S, Enterobacter Y-V) successfully alleviated Cd, resulting increases 8.24 42.21% height dry weight, respectively. studies indicated that along inoculation, altered composition bacterial community, leading changes diversity indices dominant groups such as Pseudomonadota, Actinomycetota, Acidobacteriota. functional revealed main glucose metabolism, energy signal transduction, nucleotide metabolism. particle significantly functions pentose phosphate pathway, benzoate degradation, amide biosynthesis. provides essential data scientific evidence ecotoxicological contamination metals, well insights into potential bioremediation methods.

Language: Английский

Rhizosphere microbiome metagenomics in PGPR-mediated alleviation of combined stress from polypropylene microplastics and Cd in hybrid Pennisetum DOI Creative Commons
Siyu Zhao,

Yue-Liang Meng,

Zihan Yang

et al.

Frontiers in Microbiology, Journal Year: 2025, Volume and Issue: 16

Published: Feb. 17, 2025

The simultaneous presence of microplastics (MPs) and heavy metals in soil may result heightened toxicity, causing more significant adverse effects on plant growth. Plant growth-promoting rhizobacteria (PGPR) have demonstrated capacities alleviating the toxic stress caused by combined pollution other contaminants. However, research impacts processes PGPR induced from MPs is still insufficient. This study involved a pot experiment to evaluate ability mitigate polypropylene microplastic (PP MPs) particles different sizes (6.5 μm 830 μm) metal cadmium (Cd) bioenergy hybrid Pennisetum. Moreover, metagenomic analysis was used examine rhizospheric microbial community function. cocontamination PP Cd affected growth Pennisetum differently depending size particles, with aboveground underground lengths 6.5 + experimental group being smaller than those group. PGPRs ( Bacillus sp. Y-35, Y-62, Y-S, Enterobacter Y-V) successfully alleviated Cd, resulting increases 8.24 42.21% height dry weight, respectively. studies indicated that along inoculation, altered composition bacterial community, leading changes diversity indices dominant groups such as Pseudomonadota, Actinomycetota, Acidobacteriota. functional revealed main glucose metabolism, energy signal transduction, nucleotide metabolism. particle significantly functions pentose phosphate pathway, benzoate degradation, amide biosynthesis. provides essential data scientific evidence ecotoxicological contamination metals, well insights into potential bioremediation methods.

Language: Английский

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