Abundance of ACC deaminase-positive bacteria and their interaction with winter wheat in a Colorado soil, The
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Plant growth-promoting rhizobacteria (PGPRs) are known as beneficial bacteria for plant growth and yield. One PGPR group are the ACC deaminase-positive (ACC+) bacteria which degrade 1-aminocyclopropane-1-carboxylic acid (ACC), the plant-produced precursor to ethylene. Plants produce ethylene in elevated quantities under environmental stress ("stress ethylene"), and studies have shown that ACC+ bacteria, in association with plant roots, can improve plant growth under abiotic stress (e.g., drought, salinity, heavy metals) by reducing concentrations of stress ethylene. There are few studies that ...