Department of Human Environment Design, College of Science, Cheongju University, Cheongju 28503, Korea.
Geologic Environment Research Division, Korea Institute of Geoscience and Mineral Resources (KIGAM), Daejeon 34132, Korea.
Int J Environ Res Public Health. 2021 Aug 25;18(17):8919. doi: 10.3390/ijerph18178919.
Acid sulfate soils contain sulfide minerals that have adverse environmental effects because they can lead to acidic drainage and prevent the establishment of vegetation. The current study examined the effect of a novel method for the restoration of these soils and the promotion of germination and plant growth. Thus, we isolated two strains of phosphate solubilizing bacteria, sp. PS and sp. EK, characterized their properties, and examined their effects in promoting the growth of tomato plants ( L.) in acid sulfate soil. Compared with untreated control soil, treatment of acid sulfate soils with these bacterial strains led to increased seed germination, growth of plants with more leaves, and plants with greater levels of total-adenosine tri-phosphate (tATP). Relative to the untreated control soil, the addition of sp. EK led to a 60% increase in seed germination after 52 days, growth of plants with more than 3 times as many leaves, and a 45.2% increase in tATP after 50 days. This strain has potential for use as a plant biofertilizer that promotes vegetation growth in acid sulfate soils by improving the absorption of phosphorous.
酸性硫酸盐土壤中含有硫化物矿物，这些矿物具有不良的环境影响，因为它们会导致酸性排水并阻止植被的建立。本研究考察了一种新型的修复这些土壤并促进发芽和植物生长的方法的效果。因此，我们分离了两株溶磷菌，分别命名为 sp. PS 和 sp. EK，对其特性进行了表征，并考察了它们在促进番茄植株（L.）在酸性硫酸盐土壤中生长方面的作用。与未处理的对照土壤相比，用这些细菌菌株处理酸性硫酸盐土壤导致种子发芽增加、叶片更多的植物生长以及总三磷酸腺苷（tATP）水平更高的植物。与未处理的对照土壤相比，添加 sp. EK 后，52 天后种子发芽率增加了 60%，叶片数超过 3 倍的植物生长，50 天后 tATP 增加了 45.2%。该菌株有望作为一种植物生物肥料，通过提高磷的吸收来促进酸性硫酸盐土壤中的植被生长。
