Phosphorus recovery from phosphogypsum by Bacillus altitudinis.

Authors

Yilin Yang, Yan Chen, Dan Zou, Zengzhi Yuan, Yidong Wang, Tingyi Liu

Published in

Bioresource technology. Pages 135946. Sep 24, 2026. Epub Sep 24, 2026.

Abstract

This study investigated the phosphorus recovery potential and associated metabolic responses of Bacillus altitudinis under phosphorus-rich conditions using integrated phenotypic, transcriptomic and metabolomic analyses. Phosphate exposure was accompanied by extracellular polymeric substance remodeling and increased cell-associated phosphorus signals, while the Pst/Pit transport systems and PhoP-PhoR-related genes showed transcriptional reorganization. Increased ppk transcription indicated enhanced polyphosphate (poly-P)-associated metabolic potential. Integrated transcriptomic-metabolomic analysis revealed coordinated remodeling of PTS- and ABC-transporter-associated processes, nucleotide/purine metabolism, and energy-related pathways. Collectively, these findings support a multi-layer adaptive response linking extracellular phosphorus retention, phosphate-transport regulation, transcriptome-based poly-P-associated metabolic potential, and broader metabolic reprogramming. B. altitudinis therefore represents a promising candidate for biological phosphorus capture and further evaluation toward phosphorus recovery from phosphogypsum and other phosphate-rich waste streams.

PMID:
42785692
Bibliographic data and abstract were imported from PubMed on 25 Sep 2026.

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