Departamento de Microbiologia, Faculdade de Ciências Agrárias e Veterinárias, UNESP (Department of Microbiology, Faculty of Agrarian and Veterinary Sciences, UNESP), 14.870-000, Jaboticabal, SP, Brasil.
World J Microbiol Biotechnol. 1996 Nov;12(6):567-72. doi: 10.1007/BF00327716.
Forty two soil isolates (31 bacteria and 11 fungi) were studied for their ability to solubilize rock phosphate and calcium phosphate in culture medium. Eight bacteria and 8 fungi possessed solubilizing ability. Pseudomonas cepacia and Penicillium purpurogenum showed the highest activity. There was a correlation between final pH value and titratable acidity (r=-0.29 to -0.87) and between titratable acidity and soluble phosphate (r=0.22 to 0.99). Correlation values were functions of insoluble phosphate and of the group of microorganisms considered. A high correlation was observed between final pH and soluble phosphate only for the rock phosphates inoculated with the highest concentration of solubilizing bacteria (r=-0.73 to -0.98).
研究了 42 株土壤分离物（31 株细菌和 11 株真菌）在培养基中溶解磷矿粉和磷酸钙的能力。8 株细菌和 8 株真菌具有溶解能力。假单胞菌和青霉表现出最高的活性。最终 pH 值与可滴定酸度（r=-0.29 至-0.87）和可滴定酸度与可溶性磷酸盐（r=0.22 至 0.99）之间存在相关性。相关值是不溶性磷酸盐和所考虑的微生物群的函数。只有在用最高浓度的溶磷菌接种的磷矿粉中，最终 pH 值与可溶性磷酸盐之间才存在高度相关性（r=-0.73 至-0.98）。
