Plant growth promoting bacteria enhances photosynthesis, nodulation and root system architecture in lentil under lead toxicity

The usage of plant growth-promoting bacteria (PGPB) in mitigation harmful effects lead (Pb) toxicity plants and bioremediation it from soils is a sustainable, effective low-cost strategy. experiment was laid out to investigate the role PGPB on morphological physiological growth, root system architecture nodulation lentil under Pb stress. conducted according completely randomized factorial design with four replications at laboratory Field Crops Department, Siirt University, 2022. levels three bacterial inoculations were used experiment. Plant height, seedling fresh weight, dry total chlorophyll content, taproot length, number lateral roots, length nodule varied between 15.7-25.9 cm, 0.123-0.235 g, 0.019-0.092 0.0104-0.0326 0.0076-0.0146 27.9-47.2%, 8.9-19.2 4.00-14.67, 17.6-44.8 cm 1.37-10.63, respectively. Bio-priming containing 1-aminocyclopropane-1-carboxylic acid (ACC) deaminase activity increased matter accumulation up 56.1% 22.9% shoots Chlorophyll content enhanced 17.9% compared control application. Besides, formation improved by bio-priming both stress non-stress conditions. may be sustainable solution mitigate oxidative promote growth yield Pb-contaminated soils.