{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,9]],"date-time":"2026-10-09T17:56:15Z","timestamp":1791568575417,"version":"4.3.4"},"reference-count":53,"publisher":"Public Library of Science (PLoS)","issue":"10","license":[{"start":{"date-parts":[[2026,10,9]],"date-time":"2026-10-09T00:00:00Z","timestamp":1791504000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["41877489"],"award-info":[{"award-number":["41877489"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["www.plosone.org"],"crossmark-restriction":false},"short-container-title":["PLoS One"],"abstract":"<jats:p>\n                    Potassium solubilizing bacteria (KSB) represent a sustainable strategy for enhancing soil K bioavailability through the dissolution of K-bearing minerals, thereby facilitating nutrient cycling. However, the multifaceted biochemical mechanisms driving mineral weathering remain partially understood. The present study explores the K solubilization characteristic and mechanisms of KSB by analyzing the organic acids they metabolize and their interactions with mineral surfaces. Over 30 d, the strain S1 classified to genus\n                    <jats:italic>Burkholderia<\/jats:italic>\n                    achieved a maximum soluble K\n                    <jats:sup>+<\/jats:sup>\n                    concentration of 39.8 mg\/L, representing a 4.5-fold increase over abiotic controls. Mechanistic analysis revealed a synergistic \u201cdual-attack\u201d strategy: continuous acidification (pH 6.42 to 3.82) promoted proton-driven K\n                    <jats:sup>+<\/jats:sup>\n                    release, while the dominant secretion of citric and malic acids facilitated ligand-mediated complexation of structural cations, destabilizing the aluminosilicate framework. Additionally, the temporal accumulation of polar and acidic amino acids likely served as biogenic regulators, enhancing bacteria-mineral adhesion and interface interactions. Scanning electron microscopy corroborated these chemical findings, revealing extensive surface etch pits and edge exfoliation. These results suggest that the synergistic interaction of proton attack, ligand-mediated chelation, and amino acid-assisted micro-environment regulation drives mineral weathering. This study provides a comprehensive structural framework for KSB-mediated nutrient mobilization, highlighting the potential of\n                    <jats:italic>Burkholderia<\/jats:italic>\n                    as an efficient bio-fertilizer for potassium-deficient soils.\n                  <\/jats:p>","DOI":"10.1371\/journal.pone.0360380","type":"journal-article","created":{"date-parts":[[2026,10,9]],"date-time":"2026-10-09T17:33:09Z","timestamp":1791567189000},"page":"e0360380","update-policy":"https:\/\/doi.org\/10.1371\/journal.pone.corrections_policy","source":"Crossref","is-referenced-by-count":0,"title":["Unraveling the biochemical and kinetic mechanisms of potassium solubilization from biotite by a Burkholderia strain"],"prefix":"10.1371","volume":"21","author":[{"given":"Zihan","family":"Dong","sequence":"first","affiliation":[{"name":"School of Earth Science, Northeast Petroleum University","place":["Daqing, Heilongjiang, 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