Pedobacter helvus Hu et al. 2019 Hu S.-L. Huang J.-W. Yang M.-J. Jia W.-B. Ke Z. Hu B. Jiang J.-D. Pedobacter helvus sp. nov., isolated from farmland soil. 2019 69 12 3806 3811 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijsem.0.003684 31464658