原生动物与解磷微生物协同解磷作用

磷是农业生产重要的限制因素之一，土壤生物包括原生动物和微生物在土壤磷素转化过程中起着重要的作用。通过纯培养和土壤培养试验发现，供试的原生动物能够提高磷矿粉的有效磷，土壤有效磷含量也显著增加。所溶解出来的磷很大一部分以无机磷酸盐的形式贮藏在细胞内，熏蒸时才释放出来，少部分磷转化为生物量磷。原生动物与解磷菌之间没有显著的相互促进作用。

Interaction of protozoa and phosphate-solubilizing bacteria on rock phosphate dissolution

Phosphorusp is one of the limited factors for agricultural production. Both protozoa and microorganisms play important roles in the P transformation of soil. Through pure culture and soil incubation experiments, it was found that the tested protozoa of Colopodia,Oxytricna and Australothrix had significant activity in dissolving rock phosphate. Soil available P increased largely due to the inoculation. A large amount of the dissolved P was absorbed by the organisms, and released after chloroform fumigation. Significant amount of the P was changed to biomass P. However, no significant interaction was found between the tested protozoa and phosphate solubilizing bacteria.