Author

Xiao-Hua Song

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Open access Oct 2026

Chemical and Biological Mobilization of Soil Phosphorus by ppk-Expressing Transgenic Rice (Oryza sativa L.)

Phosphorus (P) availability in alkaline soils is constrained by the immobilization of legacy P, particularly through calcium phosphate precipitation. We used a confined soil–plant microcosm to examine how expression of the polyphosphate kinase gene (ppk) is associated with legacy P utilization in rice (Oryza sativa L.)...

Shun-Qing Yang, Meng-Meng Wang, Xiao-Hua Song et al. · Plants · 0 citations

Aug 2026

Wastewater nutrients valorization into biostimulant via engineered polyphosphate-accumulating bacterium.

Phosphorus (P) and nitrogen (N) are critical nutrients increasingly lost to wastewater streams. Existing methods focus on removal rather than recycling, and are poorly equipped for valorization. Building on our group's prior work engineering Citrobacter freundii (CPP) overexpressing ppk for enhanced P removal, we demon...

Xiao-Tong Ge, Xue Li, Zi-Hao Fan et al. · Bioresource Technology · 0 citations