Search

Browse

• Communities
• Authors
• Year
• Titles
• Subjects

My Space

• Login

Isolation of bacteria from soil and investigation of their action as (PSB) bacteria contributing to phosphorus solubilisation in soil

Kavvadia Ioanna

Full record

---

Summary

Phosphorus is a vital nutrient for plant growth. Although concentrations of it in the soil are high, only a small percentage is available to plants. To increase the available phosphorus levels for plants, various formulations containing phosphorus are widely used, but they increase the cost of cultivation. In the past, various bacteria have been identified that can solubilize phosphorus and make it available to plants. By using these bacteria, the frequent addition of phosphorus to the soil can be prevented, resulting in reduced production costs and fewer negative environmental impacts. The aim of this study was to isolate bacteria from the soil and determine if these bacteria can act as phosphorus-solubilizing bacteria in the soil. Specifically, in this study, bacteria were initially isolated and morphologically characterized from three different soils. Furthermore, the ability of these bacteria to solubilize phosphorus, fix nitrogen gas, and produce the plant hormone IAA was evaluated. Subsequently, three strains of bacteria that were found to solubilize phosphorus were added to soil samples, and the change in phosphorus levels in the soil was measured. No bacteria were found to increase the quantity of phosphorus in the soil, possibly because the bacteria did not survive under the experimental conditions. In general, this study identified bacteria that solubilize phosphorus, produce the plant hormone IAA, and fix nitrogen. These bacteria can be tested in the future under different conditions to determine if they can promote plant growth through their actions.

Available Files

Services