Isolation and Characterization of a Novel Silicate-Solubilizing Bacterial Strain Staphylococcus ureilyticus MV-1 Associated with Grape Wine

Abstract

This research aimed to isolate Staphylococcus ureilyticus MV-1 bacteria and evaluate their potential for soil application. These bacteria can solubilize silicate minerals up to 25 µg/mL in the first 10 h utilizing magnesium trisilicate as a silica source. This encourages plant development by generating plant hormones such as indole acetic acid (IAA). The IAA production peaked at 14 µg/mL after 48 h without further supplementation. Further, significant levels of micro- and macro-nutrient uptake were also recorded using Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES) in grapevine after treating it with MV-1 indicating the availability of nutrients to plants for proper growth and functioning. The results state that MV-1 had a synergistic effect on plant growth and soil fertility.