What does the published scientific research say about Bacillus pasteurii?

Eight PubMed articles index Bacillus pasteurii — now reclassified as Sporosarcina pasteurii — in a plant-input context. Peer-reviewed research on this ureolytic bacterium centers almost entirely on microbially induced calcite precipitation (MICP): S. pasteurii ATCC 11859 functions as the standard reference culture across soil biocementation and ground-improvement studies, and the name Bacillus pasteurii still appears in older literature covering the same work.

Studies cited in the literature report that S. pasteurii achieves sixfold higher biocementation potential than native ureolytic communities, precipitating calcite crystals of 5–40 µm. Research also documents urease activity in soils polluted by polycyclic aromatic hydrocarbons, and notes that inoculated S. pasteurii competes poorly with indigenous soil bacteria over time, falling below detection after repeated field-scale treatments.

The one directly agricultural finding in this indexed set comes from a tea (Camellia sinensis) rhizosphere study: peer-reviewed research identifies Sporosarcina pasteurii T21 as a beneficial antagonistic bacterium whose abundance and biocontrol functions are reported to decline under disease-conducive soil conditions. The remaining seven studies address geotechnical applications — erosion mitigation, mortar crack repair — rather than crop production or agronomic inputs.