Characterization of lead resistant endophytic Bacillus sp. MN3-4 and its potential for promoting lead accumulation in metal hyperaccumulator Alnus firma

► Endophytic Bacillus spp. have reduced the lead toxicity in Alnus firma plants. ► The bacteria have sequestered the Pb molecules extracellularly. ► The bacteria have increased the growth rate of plants in the presence of Pb.