{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,22]],"date-time":"2026-10-22T06:14:09Z","timestamp":1792649649096,"version":"4.5.0"},"reference-count":100,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2023,2,10]],"date-time":"2023-02-10T00:00:00Z","timestamp":1675987200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Science and Technology Support Project of Guizhou Province","award":["[2020] 1Y154"],"award-info":[{"award-number":["[2020] 1Y154"]}]},{"name":"Science and Technology Support Project of Guizhou Province","award":["[2020] 1Y116"],"award-info":[{"award-number":["[2020] 1Y116"]}]},{"name":"Science and Technology Support Project of Guizhou Province","award":["[2021] General 273"],"award-info":[{"award-number":["[2021] General 273"]}]},{"name":"Science and Technology Support Project of Guizhou Province","award":["[2021] General 121"],"award-info":[{"award-number":["[2021] General 121"]}]},{"name":"Science and Technology Support Project of Guizhou Province","award":["[2022] General 148"],"award-info":[{"award-number":["[2022] General 148"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Microorganisms"],"abstract":"<jats:p>Phosphorus-solubilizing microorganisms release organic acids that can chelate mineral ions or reduce the pH to solubilize insoluble phosphates for use by plants; it is important to study potential phosphorus-solubilizing microorganisms for use in agriculture. In this study, PSF7 was isolated from the soil of the Wengfu Phosphorus Tailings Dump in Fuquan City, Guizhou Province, China. PSF7 was identified as Paecilomyces lilacinus, based on morphological characterization and ITS sequencing analysis. The relationship between the phosphorus-solubilizing capacity and pH variation of PSF7 under liquid fermentation was studied. The results showed that there was a significant negative correlation (\u22120.784) between the soluble phosphorus content of PSF7 and the pH value. When PSF7 was placed under low phosphorus stress, eight organic acids were determined from fermentation broth using HPLC, of which tartaric acid and formic acid were the main organic acids. Different optimization parameters of medium components were analyzed using response surface methodology. The optimized medium components were 23.50 g\/L sucrose, 1.64 g\/L ammonium sulfate and soybean residue, 1.07 g\/L inorganic salts, and 9.16 g\/L tricalcium phosphate, with a predicted soluble phosphorus content of 123.89 mg\/L. Under the optimum medium composition, the actual phosphorus-solubilizing content of PSF7 reached 122.17 mg\/L. Moreover, scanning electron microscopy analysis of the sample was carried out to characterize the phosphate-solubilizing efficiency of PSF7 on mineral phosphate. The results provide useful information for the future application of PSF7 as a biological fertilizer.<\/jats:p>","DOI":"10.3390\/microorganisms11020454","type":"journal-article","created":{"date-parts":[[2023,2,13]],"date-time":"2023-02-13T04:07:19Z","timestamp":1676261239000},"page":"454","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":18,"title":["Phosphate-Solubilizing Capacity of Paecilomyces lilacinus PSF7 and Optimization Using Response Surface Methodology"],"prefix":"10.3390","volume":"11","author":[{"given":"Xue-Li","family":"Wang","sequence":"first","affiliation":[{"name":"College of Life Sciences, Guizhou University, No. 2708 Huaxi Road, 14, Guiyang 550025, China"},{"name":"College of Liquor and Food Engineering, Guizhou University, No. 2708 Huaxi Road, 14, Guiyang 550025, China"},{"name":"College of Resources and Environmental Engineering, Guizhou University, No. 2708 Huaxi Road, 14, Guiyang 550025, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shu-Yi","family":"Qiu","sequence":"additional","affiliation":[{"name":"College of Life Sciences, Guizhou University, No. 2708 Huaxi Road, 14, Guiyang 550025, China"},{"name":"College of Liquor and Food Engineering, Guizhou University, No. 2708 Huaxi Road, 14, Guiyang 550025, China"},{"name":"College of Resources and Environmental Engineering, Guizhou University, No. 2708 Huaxi Road, 14, Guiyang 550025, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shao-Qi","family":"Zhou","sequence":"additional","affiliation":[{"name":"College of Life Sciences, Guizhou University, No. 2708 Huaxi Road, 14, Guiyang 550025, China"},{"name":"College of Liquor and Food Engineering, Guizhou University, No. 2708 Huaxi Road, 14, Guiyang 550025, China"},{"name":"College of Resources and Environmental Engineering, Guizhou University, No. 2708 Huaxi Road, 14, Guiyang 550025, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhi-Hu","family":"Xu","sequence":"additional","affiliation":[{"name":"College of Life Sciences, Guizhou University, No. 2708 Huaxi Road, 14, Guiyang 550025, China"},{"name":"College of Liquor and Food Engineering, Guizhou University, No. 2708 Huaxi Road, 14, Guiyang 550025, China"},{"name":"College of Resources and Environmental Engineering, Guizhou University, No. 2708 Huaxi Road, 14, Guiyang 550025, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xue-Ting","family":"Liu","sequence":"additional","affiliation":[{"name":"College of Life Sciences, Guizhou University, No. 2708 Huaxi Road, 14, Guiyang 550025, China"},{"name":"College of Liquor and Food Engineering, Guizhou University, No. 2708 Huaxi Road, 14, Guiyang 550025, China"},{"name":"College of Resources and Environmental Engineering, Guizhou University, No. 2708 Huaxi Road, 14, Guiyang 550025, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2023,2,10]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"57","DOI":"10.5604\/17331331.1234994","article-title":"Isolation and Characterization of Phosphate-Solubilizing Bacteria from Mushroom Residues and their Effect on Tomato Plant Growth Promotion","volume":"66","author":"Zhang","year":"2017","journal-title":"Pol. 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