| http://www.w3.org/ns/prov#value | - PGPRs facilitate the production of plant growth promotion compounds, such as auxins, cytokinins, and gibberellins, or by producing siderophore to bind Fe3+ from the environment and help to improve nutrient uptake, supply of plant nutrients (nitrogen, phosphate, and other mineral nutrients), or suppression of stress ethylene production by 1-aminocyclopropane-1-carboxylate (ACC) deaminase activity [
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