In order to promote the leaching of Ca and Mg elements in anorthite, a strain hzt-1′ with good adaptability to anorthite was screened from the soil of Jialiangshan, Fangshan County, Lvliang City, Shanxi Province. It was identified as Phyllobacterium myrsinacearum. The optimum growth conditions of the strain and the optimum leaching conditions of anorthite in Czapek Medium were investigated. The optimum growth conditions of strain hzt-1′ are as follows: pH of 6, liquid volume of 80 mL, inoculation volume of 7%, glucose as the best carbon source (20 g/L), and NaNO3 as the best nitrogen source (1 g/L). The optimum leaching conditions of strain hzt-1′ are as follows: pH of 6, inoculation volume of 3%, pulp mass concentration of 20 g/L, and liquid volume of 100 mL. Under these conditions, the leaching rates of Ca2+ and Mg2+ in anorthite are 50.3% and 39.91%, respectively. The strain promotes the dissolution of anorthite through proton exchange and complexation, accelerates the leaching of Ca2+ and Mg2+, and thus improves the utilization rate of anorthite and other mineral resources. This study can provide a new strain for efficient leaching of silicate minerals.
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |