p-Hydroxybenzoate is an allelopathic compound commonly found in soil from long-term monoculture cropping systems. During the bacterial diversity analysis of saline soil, a Gram-negative, non-spore forming, non-motile, aerobic p-hydroxybenzoate-degrading bacterial strain, designated LN3S51, was isolated from saline soil which was sampled from Tumd Right Banner, Inner Mongolia, northern China. Strain LN3S51 grew at 4-40 °C (optimum, 30 °C), pH 5.